# Diagno

> Diagno selgitab auto mootori OBD-II veakoode lihtsas eesti keeles (hinnang põhineb tehisintellektil ja meie töökoja praktilisel kogemusel ning teadmistel): mida kood tähendab, mis võib viga olla, kas tohib sõita, mida ise kontrollida, kuidas seda parandada ja palju remont umbes maksab. Lehel saab broneerida autodiagnostika.

- Avaleht ja otsing: https://diagno.ee/
- Kõik veakoodid (183): https://diagno.ee/koodid
- Broneeri diagnostika: https://diagno.ee/#broneeri
- Kontakt: https://diagno.ee/kontakt
- Blogi: https://diagno.ee/blogi
- Foorum: https://diagno.ee/foorum
- Osaline koodiotsing, nt kõik P04xx koodid: https://diagno.ee/koodid?q=P04
- Toimetus ja kuidas sisu valmib: https://diagno.ee/toimetus
- Sisu uuendatud: 2026-10-15

## Juhendid

- [Auto jäi tee peale seisma: mida teha kohe](https://diagno.ee/tee-abi): Samm-sammult: kuidas auto ohutult peatada, mida enne puksiiri kutsumist ise kontrollida ja millal on parem edasi mitte sõita.
- [Auto hoiatustuled: mida need tähendavad](https://diagno.ee/hoiatustuled): Mootorituli, õlituli, akutuli, piduri-, temperatuuri-, ABS-, turvapadja- ja rehvirõhu tuli. Mida tuli tähendab, kas tohib sõita ja mida kohe teha.
- [Auto sümptomid: mis võib viga olla](https://diagno.ee/sumptomid): Auto ei käivitu, klõpsub, tõmbleb, on jõuetu, kuumeneb või suitseb? Tõenäolised põhjused, mida ise kontrollida ja millised veakoodid sellega kaasnevad.

## Blogi

- [Auto ei käivitu külmaga? 8 põhjust ja mida teha](https://diagno.ee/blogi/auto-ei-kaivitu-kulmaga): Auto ei käivitu külmaga? Vaata 8 tavalisemat põhjust akust kuni hõõgküünalde ja kütuseni, mida saad ise teha ja millal on aeg auto töökotta tuua.
- [Mootorituli põleb – mida teha ja kas tohib sõita?](https://diagno.ee/blogi/mootorituli-poleb): Mootorituli põleb või vilgub? Selgitame lihtsalt, mida tuli tähendab, kas tohib edasi sõita, mis on 10 tavalisemat põhjust ja kuidas veakoodi tasuta diagno.ee lehel vaadata.
- [P0420 viga: põhjused, sümptomid ja remondi hind](https://diagno.ee/blogi/p0420-viga): P0420 viga tähendab, et katalüsaator on läbi või ei tööta enam korralikult. Loe, mis on põhjused ja sümptomid, kas tohib sõita ja palju remont maksab – lihtsas eesti keeles.

## Nukkvõlli reguleerimine

- [P0010 – Nukkvõlli reguleerimisklapi juhtmes on viga (sisselase)](https://diagno.ee/kood/P0010): "A" Camshaft Position Actuator Circuit (Bank 1)
- [P0011 – Sisselaske nukkvõll on liiga ees](https://diagno.ee/kood/P0011): "A" Camshaft Timing Over-Advanced (Bank 1)
- [P0012 – Sisselaske nukkvõll on liiga taga](https://diagno.ee/kood/P0012): "A" Camshaft Timing Over-Retarded (Bank 1)
- [P0013 – Väljalaske nukkvõlli reguleerimisklapi juhtmes on viga](https://diagno.ee/kood/P0013): "B" Camshaft Position Actuator Circuit (Bank 1)
- [P0014 – Väljalaske nukkvõll on liiga ees](https://diagno.ee/kood/P0014): "B" Camshaft Timing Over-Advanced (Bank 1)
- [P0021 – Sisselaske nukkvõll on liiga ees (2. silindririda)](https://diagno.ee/kood/P0021): "A" Camshaft Timing Over-Advanced (Bank 2)

## Mootori andurid ja kett

- [P0016 – Väntvõll ja nukkvõll pole omavahel õiges seisus (sisselase)](https://diagno.ee/kood/P0016): Crankshaft/Camshaft Position Correlation (Bank 1 Sensor A)
- [P0017 – Väntvõll ja nukkvõll pole omavahel õiges seisus (väljalase)](https://diagno.ee/kood/P0017): Crankshaft/Camshaft Position Correlation (Bank 1 Sensor B)
- [P0320 – Mootori pöörete signaal kaob](https://diagno.ee/kood/P0320): Ignition/Distributor Engine Speed Input Circuit
- [P0335 – Väntvõlli andur ei anna signaali](https://diagno.ee/kood/P0335): Crankshaft Position Sensor A Circuit
- [P0336 – Väntvõlli anduri signaal on katkendlik](https://diagno.ee/kood/P0336): Crankshaft Position Sensor A Circuit Range/Performance
- [P0340 – Nukkvõlli andur ei anna signaali](https://diagno.ee/kood/P0340): Camshaft Position Sensor A Circuit (Bank 1)
- [P0341 – Nukkvõlli anduri signaal on vigane](https://diagno.ee/kood/P0341): Camshaft Position Sensor A Circuit Range/Performance (Bank 1)
- [P0345 – Nukkvõlli andur ei anna signaali (2. silindririda)](https://diagno.ee/kood/P0345): Camshaft Position Sensor A Circuit (Bank 2)

## Lambda-andurid

- [P0030 – Eesmise lambda-anduri küte ei tööta](https://diagno.ee/kood/P0030): HO2S Heater Control Circuit (Bank 1 Sensor 1)
- [P0031 – Eesmise lambda-anduri küte: liiga madal pinge](https://diagno.ee/kood/P0031): HO2S Heater Control Circuit Low (Bank 1 Sensor 1)
- [P0032 – Eesmise lambda-anduri küte: liiga kõrge pinge](https://diagno.ee/kood/P0032): HO2S Heater Control Circuit High (Bank 1 Sensor 1)
- [P0036 – Tagumise lambda-anduri küte ei tööta](https://diagno.ee/kood/P0036): HO2S Heater Control Circuit (Bank 1 Sensor 2)
- [P0037 – Tagumise lambda-anduri küte: liiga madal pinge](https://diagno.ee/kood/P0037): HO2S Heater Control Circuit Low (Bank 1 Sensor 2)
- [P0038 – Tagumise lambda-anduri küte: liiga kõrge pinge](https://diagno.ee/kood/P0038): HO2S Heater Control Circuit High (Bank 1 Sensor 2)
- [P0050 – Eesmise lambda-anduri küte ei tööta (2. silindririda)](https://diagno.ee/kood/P0050): HO2S Heater Control Circuit (Bank 2 Sensor 1)
- [P0130 – Eesmise lambda-anduri juhtmes on viga](https://diagno.ee/kood/P0130): O2 Sensor Circuit (Bank 1 Sensor 1)
- [P0131 – Eesmiselt lambda-andurilt tuleb liiga madal pinge](https://diagno.ee/kood/P0131): O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
- [P0132 – Eesmiselt lambda-andurilt tuleb liiga kõrge pinge](https://diagno.ee/kood/P0132): O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
- [P0133 – Eesmine lambda-andur on aeglane](https://diagno.ee/kood/P0133): O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
- [P0134 – Eesmine lambda-andur ei tööta](https://diagno.ee/kood/P0134): O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
- [P0135 – Eesmise lambda-anduri küte ei tööta](https://diagno.ee/kood/P0135): O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
- [P0136 – Tagumise lambda-anduri juhtmes on viga](https://diagno.ee/kood/P0136): O2 Sensor Circuit (Bank 1 Sensor 2)
- [P0137 – Tagumiselt lambda-andurilt tuleb liiga madal pinge](https://diagno.ee/kood/P0137): O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
- [P0138 – Tagumiselt lambda-andurilt tuleb liiga kõrge pinge](https://diagno.ee/kood/P0138): O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
- [P0139 – Tagumine lambda-andur on aeglane](https://diagno.ee/kood/P0139): O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
- [P0140 – Tagumine lambda-andur ei tööta](https://diagno.ee/kood/P0140): O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
- [P0141 – Tagumise lambda-anduri küte ei tööta](https://diagno.ee/kood/P0141): O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
- [P0150 – Eesmise lambda-anduri juhtmes on viga (2. silindririda)](https://diagno.ee/kood/P0150): O2 Sensor Circuit (Bank 2 Sensor 1)
- [P0151 – Eesmiselt lambda-andurilt tuleb liiga madal pinge (2. silindririda)](https://diagno.ee/kood/P0151): O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)
- [P0153 – Eesmine lambda-andur on aeglane (2. silindririda)](https://diagno.ee/kood/P0153): O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
- [P0155 – Eesmise lambda-anduri küte ei tööta (2. silindririda)](https://diagno.ee/kood/P0155): O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
- [P0156 – Tagumise lambda-anduri juhtmes on viga (2. silindririda)](https://diagno.ee/kood/P0156): O2 Sensor Circuit (Bank 2 Sensor 2)
- [P0161 – Tagumise lambda-anduri küte ei tööta (2. silindririda)](https://diagno.ee/kood/P0161): O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
- [P2195 – Eesmine lambda-andur näitab kogu aeg lahjat segu](https://diagno.ee/kood/P2195): O2 Sensor Signal Stuck Lean (Bank 1 Sensor 1)
- [P2196 – Eesmine lambda-andur näitab kogu aeg rikast segu](https://diagno.ee/kood/P2196): O2 Sensor Signal Stuck Rich (Bank 1 Sensor 1)

## Kütus ja õhk

- [P0068 – Õhuhulk ei klapi gaasipedaali asendiga](https://diagno.ee/kood/P0068): MAP/MAF - Throttle Position Correlation
- [P0087 – Kütuserõhk on liiga madal](https://diagno.ee/kood/P0087): Fuel Rail/System Pressure Too Low
- [P0088 – Kütuserõhk on liiga kõrge](https://diagno.ee/kood/P0088): Fuel Rail/System Pressure Too High
- [P0089 – Kütuserõhu regulaator ei hoia rõhku paigas](https://diagno.ee/kood/P0089): Fuel Pressure Regulator Performance
- [P0093 – Kütusesüsteemis on suur leke](https://diagno.ee/kood/P0093): Fuel System Leak Detected - Large Leak
- [P0101 – Õhumassimõõtur näitab valesti](https://diagno.ee/kood/P0101): Mass or Volume Air Flow Circuit Range/Performance
- [P0191 – Kütuserõhu andur näitab valesti](https://diagno.ee/kood/P0191): Fuel Rail Pressure Sensor Range/Performance
- [P0230 – Kütusepumba toites on viga](https://diagno.ee/kood/P0230): Fuel Pump Primary Circuit Malfunction
- [P0627 – Kütusepumba juhtimises on viga](https://diagno.ee/kood/P0627): Fuel Pump A Control Circuit/Open
- [P2004 – Keerisklapid on lahti kinni jäänud](https://diagno.ee/kood/P2004): Intake Manifold Runner Control Stuck Open (Bank 1)
- [P2015 – Keerisklappide asendiandur näitab valesti](https://diagno.ee/kood/P2015): Intake Manifold Runner Position Sensor Range/Performance (Bank 1)
- [P2279 – Sisselaskes on õhuleke](https://diagno.ee/kood/P2279): Intake Air System Leak

## Andurid

- [P0100 – Õhumassimõõturi juhtmes on viga](https://diagno.ee/kood/P0100): Mass or Volume Air Flow Circuit Malfunction
- [P0102 – Õhumassimõõturilt tuleb liiga madal signaal](https://diagno.ee/kood/P0102): Mass or Volume Air Flow Circuit Low Input
- [P0103 – Õhumassimõõturilt tuleb liiga kõrge signaal](https://diagno.ee/kood/P0103): Mass or Volume Air Flow Circuit High Input
- [P0105 – Sisselaske rõhuanduri (MAP) juhtmes on viga](https://diagno.ee/kood/P0105): Manifold Absolute Pressure/Barometric Pressure Circuit
- [P0106 – Sisselaske rõhuandur (MAP) näitab valesti](https://diagno.ee/kood/P0106): MAP/Barometric Pressure Circuit Range/Performance
- [P0107 – Sisselaske rõhuandurilt (MAP) tuleb liiga madal signaal](https://diagno.ee/kood/P0107): MAP/Barometric Pressure Circuit Low Input
- [P0108 – Sisselaske rõhuandurilt (MAP) tuleb liiga kõrge signaal](https://diagno.ee/kood/P0108): MAP/Barometric Pressure Circuit High Input
- [P0110 – Sisselaskeõhu temperatuurianduri juhtmes on viga](https://diagno.ee/kood/P0110): Intake Air Temperature Circuit
- [P0112 – Sisselaskeõhu temperatuuriandur näitab liiga sooja](https://diagno.ee/kood/P0112): Intake Air Temperature Circuit Low Input
- [P0113 – Sisselaskeõhu temperatuuriandur näitab liiga külma](https://diagno.ee/kood/P0113): Intake Air Temperature Circuit High Input
- [P0115 – Mootori temperatuurianduri juhtmes on viga](https://diagno.ee/kood/P0115): Engine Coolant Temperature Circuit
- [P0117 – Mootori temperatuuriandur näitab liiga kuuma](https://diagno.ee/kood/P0117): Engine Coolant Temperature Circuit Low Input
- [P0118 – Mootori temperatuuriandur näitab liiga külma](https://diagno.ee/kood/P0118): Engine Coolant Temperature Circuit High Input
- [P0120 – Drosselklapi või gaasipedaali anduri juhtmes on viga](https://diagno.ee/kood/P0120): Throttle/Pedal Position Sensor A Circuit
- [P0121 – Drosselklapi andur näitab valesti](https://diagno.ee/kood/P0121): Throttle/Pedal Position Sensor A Range/Performance
- [P0122 – Drosselklapi andurilt tuleb liiga madal signaal](https://diagno.ee/kood/P0122): Throttle/Pedal Position Sensor A Circuit Low
- [P0123 – Drosselklapi andurilt tuleb liiga kõrge signaal](https://diagno.ee/kood/P0123): Throttle/Pedal Position Sensor A Circuit High
- [P0190 – Kütuserõhu anduri juhtmes on viga](https://diagno.ee/kood/P0190): Fuel Rail Pressure Sensor Circuit
- [P0192 – Kütuserõhu andurilt tuleb liiga madal signaal](https://diagno.ee/kood/P0192): Fuel Rail Pressure Sensor Circuit Low
- [P0193 – Kütuserõhu andurilt tuleb liiga kõrge signaal](https://diagno.ee/kood/P0193): Fuel Rail Pressure Sensor Circuit High
- [P0220 – Drosselklapi või gaasipedaali teise anduri juhtmes on viga](https://diagno.ee/kood/P0220): Throttle/Pedal Position Sensor B Circuit
- [P0221 – Drosselklapi teine andur näitab valesti](https://diagno.ee/kood/P0221): Throttle/Pedal Position Sensor B Range/Performance
- [P0222 – Drosselklapi teiselt andurilt tuleb liiga madal signaal](https://diagno.ee/kood/P0222): Throttle/Pedal Position Sensor B Circuit Low
- [P0223 – Drosselklapi teiselt andurilt tuleb liiga kõrge signaal](https://diagno.ee/kood/P0223): Throttle/Pedal Position Sensor B Circuit High
- [P0461 – Kütusenäit on vale](https://diagno.ee/kood/P0461): Fuel Level Sensor Circuit Range/Performance
- [P0530 – Kliima rõhuanduri juhtmes on viga](https://diagno.ee/kood/P0530): A/C Refrigerant Pressure Sensor Circuit
- [P0571 – Piduritule lülitil on viga](https://diagno.ee/kood/P0571): Brake Switch A Circuit
- [P2135 – Drosselklapi kaks andurit näitavad eri asju](https://diagno.ee/kood/P2135): Throttle/Pedal Position Sensor A/B Voltage Correlation
- [P2138 – Gaasipedaali kaks andurit näitavad eri asju](https://diagno.ee/kood/P2138): Throttle/Pedal Position Sensor D/E Voltage Correlation

## Jahutus

- [P0116 – Mootori temperatuuriandur näitab valesti](https://diagno.ee/kood/P0116): Engine Coolant Temperature Circuit Range/Performance
- [P0125 – Mootor soojeneb liiga aeglaselt](https://diagno.ee/kood/P0125): Insufficient Coolant Temperature for Closed Loop Fuel Control
- [P0128 – Mootor jääb liiga külmaks (termostaat)](https://diagno.ee/kood/P0128): Coolant Thermostat (Temperature Below Regulating Temperature)
- [P0217 – Mootor on üle kuumenenud](https://diagno.ee/kood/P0217): Engine Coolant Over Temperature Condition
- [P0480 – Jahutusventilaatori juhtimises on viga](https://diagno.ee/kood/P0480): Cooling Fan 1 Control Circuit

## Kütusesegu

- [P0171 – Segu on liiga lahja](https://diagno.ee/kood/P0171): System Too Lean (Bank 1)
- [P0172 – Segu on liiga rikas](https://diagno.ee/kood/P0172): System Too Rich (Bank 1)
- [P0174 – Segu on liiga lahja (2. silindririda)](https://diagno.ee/kood/P0174): System Too Lean (Bank 2)
- [P0175 – Segu on liiga rikas (2. silindririda)](https://diagno.ee/kood/P0175): System Too Rich (Bank 2)
- [P2096 – Segu on katalüsaatori järel liiga lahja](https://diagno.ee/kood/P2096): Post Catalyst Fuel Trim System Too Lean (Bank 1)
- [P2097 – Segu on katalüsaatori järel liiga rikas](https://diagno.ee/kood/P2097): Post Catalyst Fuel Trim System Too Rich (Bank 1)
- [P2187 – Segu on tühikäigul liiga lahja](https://diagno.ee/kood/P2187): System Too Lean at Idle (Bank 1)

## Pihustid

- [P0200 – Pihustite juhtimises on viga](https://diagno.ee/kood/P0200): Injector Circuit Malfunction
- [P0201 – 1. silindri pihusti juhtmes on viga](https://diagno.ee/kood/P0201): Injector Circuit Malfunction - Cylinder 1
- [P0202 – 2. silindri pihusti juhtmes on viga](https://diagno.ee/kood/P0202): Injector Circuit Malfunction - Cylinder 2
- [P0203 – 3. silindri pihusti juhtmes on viga](https://diagno.ee/kood/P0203): Injector Circuit Malfunction - Cylinder 3
- [P0204 – 4. silindri pihusti juhtmes on viga](https://diagno.ee/kood/P0204): Injector Circuit Malfunction - Cylinder 4

## Mootori aju ja elekter

- [P0219 – Mootori pöörded läksid liiga kõrgeks](https://diagno.ee/kood/P0219): Engine Overspeed Condition
- [P0600 – Juhtplokid ei saa omavahel rääkida](https://diagno.ee/kood/P0600): Serial Communication Link Malfunction
- [P0601 – Mootori aju mälus on viga](https://diagno.ee/kood/P0601): Internal Control Module Memory Check Sum Error
- [P0603 – Mootori aju ei mäleta õpitud väärtusi](https://diagno.ee/kood/P0603): Internal Control Module Keep Alive Memory Error
- [P0606 – Mootori aju protsessoris on viga](https://diagno.ee/kood/P0606): Control Module Processor Fault
- [P0641 – Andurite toitepinge on kadunud](https://diagno.ee/kood/P0641): Sensor Reference Voltage A Circuit/Open

## Turbo

- [P0234 – Turbo rõhk on liiga suur](https://diagno.ee/kood/P0234): Turbo/Super Charger Overboost Condition
- [P0235 – Turborõhu anduri juhtmes on viga](https://diagno.ee/kood/P0235): Turbo/Super Charger Boost Sensor A Circuit
- [P0236 – Turborõhu andur näitab valesti](https://diagno.ee/kood/P0236): Turbo/Super Charger Boost Sensor A Range/Performance
- [P0237 – Turborõhu andurilt tuleb liiga madal signaal](https://diagno.ee/kood/P0237): Turbo/Super Charger Boost Sensor A Circuit Low
- [P0238 – Turborõhu andurilt tuleb liiga kõrge signaal](https://diagno.ee/kood/P0238): Turbo/Super Charger Boost Sensor A Circuit High
- [P0243 – Turbo rõhuklapi solenoidil on viga](https://diagno.ee/kood/P0243): Turbo/Super Charger Wastegate Solenoid A
- [P0299 – Turbo rõhk on liiga väike](https://diagno.ee/kood/P0299): Turbo/Super Charger Underboost
- [P2263 – Turbo ei anna õiget rõhku](https://diagno.ee/kood/P2263): Turbo/Super Charger Boost System Performance

## Süüde ja süütetõrked

- [P0300 – Mitmes silindris on süütetõrked](https://diagno.ee/kood/P0300): Random/Multiple Cylinder Misfire Detected
- [P0301 – 1. silindris on süütetõrge](https://diagno.ee/kood/P0301): Cylinder 1 Misfire Detected
- [P0302 – 2. silindris on süütetõrge](https://diagno.ee/kood/P0302): Cylinder 2 Misfire Detected
- [P0303 – 3. silindris on süütetõrge](https://diagno.ee/kood/P0303): Cylinder 3 Misfire Detected
- [P0304 – 4. silindris on süütetõrge](https://diagno.ee/kood/P0304): Cylinder 4 Misfire Detected
- [P0305 – 5. silindris on süütetõrge](https://diagno.ee/kood/P0305): Cylinder 5 Misfire Detected
- [P0306 – 6. silindris on süütetõrge](https://diagno.ee/kood/P0306): Cylinder 6 Misfire Detected
- [P0307 – 7. silindris on süütetõrge](https://diagno.ee/kood/P0307): Cylinder 7 Misfire Detected
- [P0308 – 8. silindris on süütetõrge](https://diagno.ee/kood/P0308): Cylinder 8 Misfire Detected
- [P0316 – Süütetõrge kohe pärast käivitamist](https://diagno.ee/kood/P0316): Misfire Detected on Startup (First 1000 Revolutions)
- [P0351 – 1. silindri süütepoolil on viga](https://diagno.ee/kood/P0351): Ignition Coil A Primary/Secondary Circuit
- [P0352 – 2. silindri süütepoolil on viga](https://diagno.ee/kood/P0352): Ignition Coil B Primary/Secondary Circuit
- [P0353 – 3. silindri süütepoolil on viga](https://diagno.ee/kood/P0353): Ignition Coil C Primary/Secondary Circuit
- [P0354 – 4. silindri süütepoolil on viga](https://diagno.ee/kood/P0354): Ignition Coil D Primary/Secondary Circuit

## Detonatsiooniandur

- [P0325 – Detonatsioonianduri juhtmes on viga](https://diagno.ee/kood/P0325): Knock Sensor 1 Circuit (Bank 1)
- [P0326 – Detonatsiooniandur näitab valesti](https://diagno.ee/kood/P0326): Knock Sensor 1 Circuit Range/Performance (Bank 1)
- [P0327 – Detonatsioonianduri signaal on liiga nõrk](https://diagno.ee/kood/P0327): Knock Sensor 1 Circuit Low Input (Bank 1)
- [P0328 – Detonatsioonianduri signaal on liiga tugev](https://diagno.ee/kood/P0328): Knock Sensor 1 Circuit High Input (Bank 1)
- [P0330 – Teise detonatsioonianduri juhtmes on viga](https://diagno.ee/kood/P0330): Knock Sensor 2 Circuit (Bank 2)

## Aku, laadimine ja hõõgküünlad

- [P0380 – Hõõgküünalde toites on viga](https://diagno.ee/kood/P0380): Glow Plug/Heater Circuit A
- [P0560 – Aku pinge on vale](https://diagno.ee/kood/P0560): System Voltage Malfunction
- [P0562 – Aku pinge on liiga madal](https://diagno.ee/kood/P0562): System Voltage Low
- [P0563 – Laadimispinge on liiga kõrge](https://diagno.ee/kood/P0563): System Voltage High
- [P0620 – Generaatori juhtimises on viga](https://diagno.ee/kood/P0620): Generator Control Circuit
- [P0670 – Hõõgküünalde juhtplokil on viga](https://diagno.ee/kood/P0670): Glow Plug Control Module Circuit

## EGR-klapp

- [P0400 – EGR-klapp ei tööta õigesti](https://diagno.ee/kood/P0400): Exhaust Gas Recirculation Flow Malfunction
- [P0401 – EGR-klapist läheb läbi liiga vähe gaasi](https://diagno.ee/kood/P0401): Exhaust Gas Recirculation Flow Insufficient Detected
- [P0402 – EGR-klapist läheb läbi liiga palju gaasi](https://diagno.ee/kood/P0402): Exhaust Gas Recirculation Flow Excessive Detected
- [P0403 – EGR-klapi juhtmes on viga](https://diagno.ee/kood/P0403): Exhaust Gas Recirculation Circuit Malfunction
- [P0404 – EGR-klapp ei ole seal, kus peaks](https://diagno.ee/kood/P0404): Exhaust Gas Recirculation Circuit Range/Performance
- [P0405 – EGR-klapi asendiandurilt tuleb liiga madal signaal](https://diagno.ee/kood/P0405): EGR Sensor A Circuit Low
- [P0406 – EGR-klapi asendiandurilt tuleb liiga kõrge signaal](https://diagno.ee/kood/P0406): EGR Sensor A Circuit High
- [P0411 – Lisaõhu pump ei anna piisavalt õhku](https://diagno.ee/kood/P0411): Secondary Air Injection System Incorrect Flow Detected
- [P0490 – EGR-klapi juhtmes on lühis](https://diagno.ee/kood/P0490): EGR A Control Circuit High

## Katalüsaator

- [P0420 – Katalüsaator on läbi või ei tööta korralikult](https://diagno.ee/kood/P0420): Catalyst System Efficiency Below Threshold (Bank 1)
- [P0421 – Eeskatalüsaator ei tööta enam korralikult](https://diagno.ee/kood/P0421): Warm Up Catalyst Efficiency Below Threshold (Bank 1)
- [P0430 – Katalüsaator ei tööta enam korralikult (2. silindririda)](https://diagno.ee/kood/P0430): Catalyst System Efficiency Below Threshold (Bank 2)

## Paagi tuulutus ja kütuseaurud

- [P0440 – Kütuseaurude süsteemis on viga](https://diagno.ee/kood/P0440): Evaporative Emission Control System Malfunction
- [P0441 – Paagi tuulutus ei tööta õigesti](https://diagno.ee/kood/P0441): EVAP System Incorrect Purge Flow
- [P0442 – Kütuseaurude süsteemis on väike leke](https://diagno.ee/kood/P0442): EVAP System Leak Detected (Small Leak)
- [P0443 – Paagi tuulutusklapi juhtmes on viga](https://diagno.ee/kood/P0443): EVAP System Purge Control Valve Circuit
- [P0446 – Süsifiltri õhuklapp ei tööta](https://diagno.ee/kood/P0446): EVAP System Vent Control Circuit
- [P0449 – Süsifiltri õhuklapi juhtmes on viga](https://diagno.ee/kood/P0449): EVAP System Vent Valve/Solenoid Circuit
- [P0451 – Paagi rõhuandur näitab valesti](https://diagno.ee/kood/P0451): EVAP System Pressure Sensor Range/Performance
- [P0455 – Kütuseaurude süsteemis on suur leke](https://diagno.ee/kood/P0455): EVAP System Leak Detected (Large Leak)
- [P0456 – Kütuseaurude süsteemis on väga väike leke](https://diagno.ee/kood/P0456): EVAP System Leak Detected (Very Small Leak)
- [P0457 – Paagikork on lahti või puudu](https://diagno.ee/kood/P0457): EVAP Leak Detected (Fuel Cap Loose/Off)

## Tahmafilter (DPF)

- [P0471 – Heitgaasi rõhuandur näitab valesti](https://diagno.ee/kood/P0471): Exhaust Pressure Sensor Range/Performance
- [P2002 – Tahmafilter ei püüa tahma korralikult kinni](https://diagno.ee/kood/P2002): Diesel Particulate Filter Efficiency Below Threshold (Bank 1)
- [P242F – Tahmafilter on tuhka täis](https://diagno.ee/kood/P242F): Diesel Particulate Filter Restriction - Ash Accumulation
- [P2452 – Tahmafiltri rõhuanduri juhtmes on viga](https://diagno.ee/kood/P2452): Diesel Particulate Filter Pressure Sensor A Circuit
- [P2453 – Tahmafiltri rõhuandur näitab valesti](https://diagno.ee/kood/P2453): Diesel Particulate Filter Pressure Sensor A Range/Performance
- [P2463 – Tahmafilter on tahma täis](https://diagno.ee/kood/P2463): Diesel Particulate Filter Restriction - Soot Accumulation

## Kiirusandur

- [P0500 – Kiirusandur ei anna signaali](https://diagno.ee/kood/P0500): Vehicle Speed Sensor Malfunction
- [P0501 – Kiirusandur näitab valesti](https://diagno.ee/kood/P0501): Vehicle Speed Sensor Range/Performance

## Tühikäik ja drossel

- [P0505 – Tühikäigu pöörded ei püsi paigas](https://diagno.ee/kood/P0505): Idle Control System Malfunction
- [P0506 – Tühikäigu pöörded on liiga madalad](https://diagno.ee/kood/P0506): Idle Control System RPM Lower Than Expected
- [P0507 – Tühikäigu pöörded on liiga kõrged](https://diagno.ee/kood/P0507): Idle Control System RPM Higher Than Expected
- [P2101 – Drosselklapi mootor ei tööta õigesti](https://diagno.ee/kood/P2101): Throttle Actuator Control Motor Circuit Range/Performance

## Õlirõhk

- [P0520 – Õlirõhu anduri juhtmes on viga](https://diagno.ee/kood/P0520): Engine Oil Pressure Sensor/Switch Circuit
- [P0521 – Õlirõhk on vale](https://diagno.ee/kood/P0521): Engine Oil Pressure Sensor/Switch Range/Performance

## Automaatkast

- [P0700 – Käigukastis on viga](https://diagno.ee/kood/P0700): Transmission Control System Malfunction
- [P0705 – Käiguvalija andur annab vale näidu](https://diagno.ee/kood/P0705): Transmission Range Sensor Circuit (PRNDL Input)
- [P0715 – Käigukasti sisendvõlli kiirusandur ei tööta](https://diagno.ee/kood/P0715): Input/Turbine Speed Sensor Circuit
- [P0720 – Käigukasti väljundvõlli kiirusandur ei tööta](https://diagno.ee/kood/P0720): Output Speed Sensor Circuit
- [P0730 – Käigukast libiseb](https://diagno.ee/kood/P0730): Incorrect Gear Ratio
- [P0740 – Hüdrotrafo lukustussiduri juhtmes on viga](https://diagno.ee/kood/P0740): Torque Converter Clutch Circuit Malfunction
- [P0741 – Hüdrotrafo lukustussidur ei rakendu](https://diagno.ee/kood/P0741): Torque Converter Clutch Circuit Performance or Stuck Off
- [P0750 – Käiguvahetuse solenoid A ei tööta](https://diagno.ee/kood/P0750): Shift Solenoid A Malfunction
- [P0755 – Käiguvahetuse solenoid B ei tööta](https://diagno.ee/kood/P0755): Shift Solenoid B Malfunction

## English

> Diagno in English (based on ai combined with our hands-on workshop experience and knowledge): OBD-II engine fault codes explained in plain English (meaning, likely causes, safe to drive?, DIY checks, how it's fixed, approximate Estonian repair cost) and booking of car diagnostics in Estonia.

- Home and search: https://diagno.ee/en/
- All fault codes (183): https://diagno.ee/en/codes
- Book a diagnostic check: https://diagno.ee/en/#broneeri
- Forum: https://diagno.ee/en/forum
- Partial code search, e.g. all P04xx codes: https://diagno.ee/en/codes?q=P04
- Editorial team and how content is made: https://diagno.ee/en/editorial
- Contact: https://diagno.ee/en/contact

### Camshaft timing (VVT)

- [P0010 – Fault in the camshaft adjuster valve wiring (intake)](https://diagno.ee/en/code/P0010)
- [P0011 – Intake camshaft timing too far advanced](https://diagno.ee/en/code/P0011)
- [P0012 – Intake camshaft timing too far retarded](https://diagno.ee/en/code/P0012)
- [P0013 – Fault in the exhaust camshaft adjuster valve wiring](https://diagno.ee/en/code/P0013)
- [P0014 – Exhaust camshaft timing too far advanced](https://diagno.ee/en/code/P0014)
- [P0021 – Intake camshaft timing too far advanced (bank 2)](https://diagno.ee/en/code/P0021)

### Engine sensors and timing chain

- [P0016 – Crankshaft and camshaft out of sync (intake)](https://diagno.ee/en/code/P0016)
- [P0017 – Crankshaft and camshaft out of sync (exhaust)](https://diagno.ee/en/code/P0017)
- [P0320 – Engine speed signal drops out](https://diagno.ee/en/code/P0320)
- [P0335 – No signal from the crankshaft sensor](https://diagno.ee/en/code/P0335)
- [P0336 – Crankshaft sensor signal is intermittent](https://diagno.ee/en/code/P0336)
- [P0340 – No signal from the camshaft sensor](https://diagno.ee/en/code/P0340)
- [P0341 – Camshaft sensor signal is faulty](https://diagno.ee/en/code/P0341)
- [P0345 – No signal from the camshaft sensor (bank 2)](https://diagno.ee/en/code/P0345)

### Oxygen (lambda) sensors

- [P0030 – Front oxygen sensor heater not working](https://diagno.ee/en/code/P0030)
- [P0031 – Front oxygen sensor heater: voltage too low](https://diagno.ee/en/code/P0031)
- [P0032 – Front oxygen sensor heater: voltage too high](https://diagno.ee/en/code/P0032)
- [P0036 – Rear oxygen sensor heater not working](https://diagno.ee/en/code/P0036)
- [P0037 – Rear oxygen sensor heater: voltage too low](https://diagno.ee/en/code/P0037)
- [P0038 – Rear oxygen sensor heater: voltage too high](https://diagno.ee/en/code/P0038)
- [P0050 – Front oxygen sensor heater not working (bank 2)](https://diagno.ee/en/code/P0050)
- [P0130 – Fault in the front oxygen sensor wiring](https://diagno.ee/en/code/P0130)
- [P0131 – Front oxygen sensor voltage too low](https://diagno.ee/en/code/P0131)
- [P0132 – Front oxygen sensor voltage too high](https://diagno.ee/en/code/P0132)
- [P0133 – Front oxygen sensor responds slowly](https://diagno.ee/en/code/P0133)
- [P0134 – Front oxygen sensor not working](https://diagno.ee/en/code/P0134)
- [P0135 – Front oxygen sensor heater not working](https://diagno.ee/en/code/P0135)
- [P0136 – Fault in the rear oxygen sensor wiring](https://diagno.ee/en/code/P0136)
- [P0137 – Rear oxygen sensor voltage too low](https://diagno.ee/en/code/P0137)
- [P0138 – Rear oxygen sensor voltage too high](https://diagno.ee/en/code/P0138)
- [P0139 – Rear oxygen sensor responds slowly](https://diagno.ee/en/code/P0139)
- [P0140 – Rear oxygen sensor not working](https://diagno.ee/en/code/P0140)
- [P0141 – Rear oxygen sensor heater not working](https://diagno.ee/en/code/P0141)
- [P0150 – Fault in the front oxygen sensor wiring (bank 2)](https://diagno.ee/en/code/P0150)
- [P0151 – Front oxygen sensor voltage too low (bank 2)](https://diagno.ee/en/code/P0151)
- [P0153 – Front oxygen sensor responds slowly (bank 2)](https://diagno.ee/en/code/P0153)
- [P0155 – Front oxygen sensor heater not working (bank 2)](https://diagno.ee/en/code/P0155)
- [P0156 – Fault in the rear oxygen sensor wiring (bank 2)](https://diagno.ee/en/code/P0156)
- [P0161 – Rear oxygen sensor heater not working (bank 2)](https://diagno.ee/en/code/P0161)
- [P2195 – Front oxygen sensor reads lean all the time](https://diagno.ee/en/code/P2195)
- [P2196 – Front oxygen sensor reads rich all the time](https://diagno.ee/en/code/P2196)

### Fuel and air

- [P0068 – Air flow doesn't match the accelerator position](https://diagno.ee/en/code/P0068)
- [P0087 – Fuel pressure too low](https://diagno.ee/en/code/P0087)
- [P0088 – Fuel pressure too high](https://diagno.ee/en/code/P0088)
- [P0089 – Fuel pressure regulator can't hold pressure steady](https://diagno.ee/en/code/P0089)
- [P0093 – Large leak in the fuel system](https://diagno.ee/en/code/P0093)
- [P0101 – Mass air flow sensor reads wrong](https://diagno.ee/en/code/P0101)
- [P0191 – Fuel pressure sensor reads wrong](https://diagno.ee/en/code/P0191)
- [P0230 – Fault in the fuel pump power supply](https://diagno.ee/en/code/P0230)
- [P0627 – Fault in fuel pump control](https://diagno.ee/en/code/P0627)
- [P2004 – Swirl flaps stuck open](https://diagno.ee/en/code/P2004)
- [P2015 – Swirl flap position sensor reads wrong](https://diagno.ee/en/code/P2015)
- [P2279 – Air leak in the intake](https://diagno.ee/en/code/P2279)

### Sensors

- [P0100 – Fault in the mass air flow sensor wiring](https://diagno.ee/en/code/P0100)
- [P0102 – Mass air flow sensor signal too low](https://diagno.ee/en/code/P0102)
- [P0103 – Mass air flow sensor signal too high](https://diagno.ee/en/code/P0103)
- [P0105 – Fault in the intake pressure (MAP) sensor wiring](https://diagno.ee/en/code/P0105)
- [P0106 – Intake pressure (MAP) sensor reads wrong](https://diagno.ee/en/code/P0106)
- [P0107 – Intake pressure (MAP) sensor signal too low](https://diagno.ee/en/code/P0107)
- [P0108 – Intake pressure (MAP) sensor signal too high](https://diagno.ee/en/code/P0108)
- [P0110 – Fault in the intake air temperature sensor wiring](https://diagno.ee/en/code/P0110)
- [P0112 – Intake air temperature sensor reads too warm](https://diagno.ee/en/code/P0112)
- [P0113 – Intake air temperature sensor reads too cold](https://diagno.ee/en/code/P0113)
- [P0115 – Fault in the engine temperature sensor wiring](https://diagno.ee/en/code/P0115)
- [P0117 – Engine temperature sensor reads too hot](https://diagno.ee/en/code/P0117)
- [P0118 – Engine temperature sensor reads too cold](https://diagno.ee/en/code/P0118)
- [P0120 – Fault in the throttle or accelerator pedal sensor wiring](https://diagno.ee/en/code/P0120)
- [P0121 – Throttle position sensor reads wrong](https://diagno.ee/en/code/P0121)
- [P0122 – Throttle position sensor signal too low](https://diagno.ee/en/code/P0122)
- [P0123 – Throttle position sensor signal too high](https://diagno.ee/en/code/P0123)
- [P0190 – Fault in the fuel pressure sensor wiring](https://diagno.ee/en/code/P0190)
- [P0192 – Fuel pressure sensor signal too low](https://diagno.ee/en/code/P0192)
- [P0193 – Fuel pressure sensor signal too high](https://diagno.ee/en/code/P0193)
- [P0220 – Fault in the second throttle or accelerator pedal sensor wiring](https://diagno.ee/en/code/P0220)
- [P0221 – Second throttle position sensor reads wrong](https://diagno.ee/en/code/P0221)
- [P0222 – Second throttle position sensor signal too low](https://diagno.ee/en/code/P0222)
- [P0223 – Second throttle position sensor signal too high](https://diagno.ee/en/code/P0223)
- [P0461 – Fuel gauge reading is wrong](https://diagno.ee/en/code/P0461)
- [P0530 – Fault in the A/C pressure sensor wiring](https://diagno.ee/en/code/P0530)
- [P0571 – Fault in the brake light switch](https://diagno.ee/en/code/P0571)
- [P2135 – The two throttle sensors disagree](https://diagno.ee/en/code/P2135)
- [P2138 – The two accelerator pedal sensors disagree](https://diagno.ee/en/code/P2138)

### Cooling

- [P0116 – Engine temperature sensor reads wrong](https://diagno.ee/en/code/P0116)
- [P0125 – Engine warms up too slowly](https://diagno.ee/en/code/P0125)
- [P0128 – Engine stays too cold (thermostat)](https://diagno.ee/en/code/P0128)
- [P0217 – Engine has overheated](https://diagno.ee/en/code/P0217)
- [P0480 – Fault in radiator fan control](https://diagno.ee/en/code/P0480)

### Fuel mixture

- [P0171 – Mixture too lean](https://diagno.ee/en/code/P0171)
- [P0172 – Mixture too rich](https://diagno.ee/en/code/P0172)
- [P0174 – Mixture too lean (bank 2)](https://diagno.ee/en/code/P0174)
- [P0175 – Mixture too rich (bank 2)](https://diagno.ee/en/code/P0175)
- [P2096 – Mixture too lean after the catalytic converter](https://diagno.ee/en/code/P2096)
- [P2097 – Mixture too rich after the catalytic converter](https://diagno.ee/en/code/P2097)
- [P2187 – Mixture too lean at idle](https://diagno.ee/en/code/P2187)

### Injectors

- [P0200 – Fault in injector control](https://diagno.ee/en/code/P0200)
- [P0201 – Fault in the cylinder 1 injector wiring](https://diagno.ee/en/code/P0201)
- [P0202 – Fault in the cylinder 2 injector wiring](https://diagno.ee/en/code/P0202)
- [P0203 – Fault in the cylinder 3 injector wiring](https://diagno.ee/en/code/P0203)
- [P0204 – Fault in the cylinder 4 injector wiring](https://diagno.ee/en/code/P0204)

### Engine computer and electrics

- [P0219 – Engine speed went too high](https://diagno.ee/en/code/P0219)
- [P0600 – Control modules can't communicate with each other](https://diagno.ee/en/code/P0600)
- [P0601 – Fault in the engine computer memory](https://diagno.ee/en/code/P0601)
- [P0603 – Engine computer lost its learned values](https://diagno.ee/en/code/P0603)
- [P0606 – Fault in the engine computer processor](https://diagno.ee/en/code/P0606)
- [P0641 – Sensor supply voltage has dropped out](https://diagno.ee/en/code/P0641)

### Turbo and boost pressure

- [P0234 – Turbo boost pressure too high](https://diagno.ee/en/code/P0234)
- [P0235 – Fault in the boost pressure sensor wiring](https://diagno.ee/en/code/P0235)
- [P0236 – Boost pressure sensor reads wrong](https://diagno.ee/en/code/P0236)
- [P0237 – Boost pressure sensor signal too low](https://diagno.ee/en/code/P0237)
- [P0238 – Boost pressure sensor signal too high](https://diagno.ee/en/code/P0238)
- [P0243 – Fault in the turbo wastegate solenoid](https://diagno.ee/en/code/P0243)
- [P0299 – Turbo boost pressure too low](https://diagno.ee/en/code/P0299)
- [P2263 – Turbo not delivering the right boost](https://diagno.ee/en/code/P2263)

### Ignition and misfires

- [P0300 – Misfires in several cylinders](https://diagno.ee/en/code/P0300)
- [P0301 – Misfire in cylinder 1](https://diagno.ee/en/code/P0301)
- [P0302 – Misfire in cylinder 2](https://diagno.ee/en/code/P0302)
- [P0303 – Misfire in cylinder 3](https://diagno.ee/en/code/P0303)
- [P0304 – Misfire in cylinder 4](https://diagno.ee/en/code/P0304)
- [P0305 – Misfire in cylinder 5](https://diagno.ee/en/code/P0305)
- [P0306 – Misfire in cylinder 6](https://diagno.ee/en/code/P0306)
- [P0307 – Misfire in cylinder 7](https://diagno.ee/en/code/P0307)
- [P0308 – Misfire in cylinder 8](https://diagno.ee/en/code/P0308)
- [P0316 – Misfire right after starting](https://diagno.ee/en/code/P0316)
- [P0351 – Fault in the cylinder 1 ignition coil](https://diagno.ee/en/code/P0351)
- [P0352 – Fault in the cylinder 2 ignition coil](https://diagno.ee/en/code/P0352)
- [P0353 – Fault in the cylinder 3 ignition coil](https://diagno.ee/en/code/P0353)
- [P0354 – Fault in the cylinder 4 ignition coil](https://diagno.ee/en/code/P0354)

### Knock sensor

- [P0325 – Fault in the knock sensor wiring](https://diagno.ee/en/code/P0325)
- [P0326 – Knock sensor reads wrong](https://diagno.ee/en/code/P0326)
- [P0327 – Knock sensor signal too weak](https://diagno.ee/en/code/P0327)
- [P0328 – Knock sensor signal too strong](https://diagno.ee/en/code/P0328)
- [P0330 – Fault in the second knock sensor wiring](https://diagno.ee/en/code/P0330)

### Battery, charging and glow plugs

- [P0380 – Fault in the glow plug power supply](https://diagno.ee/en/code/P0380)
- [P0560 – Battery voltage is wrong](https://diagno.ee/en/code/P0560)
- [P0562 – Battery voltage too low](https://diagno.ee/en/code/P0562)
- [P0563 – Charging voltage too high](https://diagno.ee/en/code/P0563)
- [P0620 – Fault in alternator control](https://diagno.ee/en/code/P0620)
- [P0670 – Fault in the glow plug control module](https://diagno.ee/en/code/P0670)

### EGR valve

- [P0400 – EGR valve not working properly](https://diagno.ee/en/code/P0400)
- [P0401 – Too little gas flowing through the EGR valve](https://diagno.ee/en/code/P0401)
- [P0402 – Too much gas flowing through the EGR valve](https://diagno.ee/en/code/P0402)
- [P0403 – Fault in the EGR valve wiring](https://diagno.ee/en/code/P0403)
- [P0404 – EGR valve isn't where it should be](https://diagno.ee/en/code/P0404)
- [P0405 – EGR valve position sensor signal too low](https://diagno.ee/en/code/P0405)
- [P0406 – EGR valve position sensor signal too high](https://diagno.ee/en/code/P0406)
- [P0411 – Secondary air pump not delivering enough air](https://diagno.ee/en/code/P0411)
- [P0490 – Short circuit in the EGR valve wiring](https://diagno.ee/en/code/P0490)

### Catalytic converter

- [P0420 – Catalytic converter no longer cleaning properly](https://diagno.ee/en/code/P0420)
- [P0421 – Pre-catalyst no longer cleaning properly](https://diagno.ee/en/code/P0421)
- [P0430 – Catalytic converter no longer cleaning properly (bank 2)](https://diagno.ee/en/code/P0430)

### Tank venting and fuel vapours

- [P0440 – Fault in the fuel vapour (EVAP) system](https://diagno.ee/en/code/P0440)
- [P0441 – Tank purge not working properly](https://diagno.ee/en/code/P0441)
- [P0442 – Small leak in the fuel vapour system](https://diagno.ee/en/code/P0442)
- [P0443 – Fault in the purge valve wiring](https://diagno.ee/en/code/P0443)
- [P0446 – Charcoal canister vent valve not working](https://diagno.ee/en/code/P0446)
- [P0449 – Fault in the canister vent valve wiring](https://diagno.ee/en/code/P0449)
- [P0451 – Tank pressure sensor reads wrong](https://diagno.ee/en/code/P0451)
- [P0455 – Large leak in the fuel vapour system](https://diagno.ee/en/code/P0455)
- [P0456 – Very small leak in the fuel vapour system](https://diagno.ee/en/code/P0456)
- [P0457 – Fuel cap loose or missing](https://diagno.ee/en/code/P0457)

### Diesel particulate filter (DPF)

- [P0471 – Exhaust pressure sensor reads wrong](https://diagno.ee/en/code/P0471)
- [P2002 – Particulate filter not cleaning properly](https://diagno.ee/en/code/P2002)
- [P242F – Particulate filter full of ash](https://diagno.ee/en/code/P242F)
- [P2452 – Fault in the particulate filter pressure sensor wiring](https://diagno.ee/en/code/P2452)
- [P2453 – Particulate filter pressure sensor reads wrong](https://diagno.ee/en/code/P2453)
- [P2463 – Particulate filter full of soot](https://diagno.ee/en/code/P2463)

### Speed sensor

- [P0500 – No signal from the speed sensor](https://diagno.ee/en/code/P0500)
- [P0501 – Speed sensor reads wrong](https://diagno.ee/en/code/P0501)

### Idle and throttle

- [P0505 – Idle speed won't stay steady](https://diagno.ee/en/code/P0505)
- [P0506 – Idle speed too low](https://diagno.ee/en/code/P0506)
- [P0507 – Idle speed too high](https://diagno.ee/en/code/P0507)
- [P2101 – Throttle motor not working properly](https://diagno.ee/en/code/P2101)

### Oil pressure

- [P0520 – Fault in the oil pressure sensor wiring](https://diagno.ee/en/code/P0520)
- [P0521 – Oil pressure is wrong](https://diagno.ee/en/code/P0521)

### Automatic gearbox

- [P0700 – Fault in the gearbox](https://diagno.ee/en/code/P0700)
- [P0705 – Gear selector sensor gives a wrong reading](https://diagno.ee/en/code/P0705)
- [P0715 – Gearbox input shaft speed sensor not working](https://diagno.ee/en/code/P0715)
- [P0720 – Gearbox output shaft speed sensor not working](https://diagno.ee/en/code/P0720)
- [P0730 – Gearbox slipping](https://diagno.ee/en/code/P0730)
- [P0740 – Fault in the torque converter lock-up clutch wiring](https://diagno.ee/en/code/P0740)
- [P0741 – Torque converter lock-up clutch doesn't engage](https://diagno.ee/en/code/P0741)
- [P0750 – Shift solenoid A not working](https://diagno.ee/en/code/P0750)
- [P0755 – Shift solenoid B not working](https://diagno.ee/en/code/P0755)

## English guides

- [Car broke down on the road: what to do right now](https://diagno.ee/en/roadside-help): Step by step: how to stop safely, what to check yourself before calling a tow truck, and when it's better not to drive any further.
- [Dashboard warning lights: what they mean](https://diagno.ee/en/warning-lights): Check engine, oil pressure, battery, brake, coolant temperature, ABS, airbag and tyre pressure lights. What each light means, whether you can drive and what to do.
- [Car symptoms: what could be wrong](https://diagno.ee/en/symptoms): Car won't start, just clicks, shakes, has no power, overheats or smokes? Likely causes, what to check yourself and which fault codes go with it.