P0880 Control module power input: fault (gearbox)
P0880 means: Control module power input: fault (gearbox). The fault is in the control module's own memory, processor, supply or internal circuits. Drive gently and have the car checked soon. The repair usually costs about €50–1200 in Estonia. The most common cause: weak battery or unstable voltage.
What it means
The fault is in the control module's own memory, processor, supply or internal circuits. Often the real cause is a weak battery or a bad ground.
What you may notice
- Engine light on
- The car may go into limp mode
- The engine may not start
- Other modules may also log faults
What could be wrong
- 1Weak battery or unstable voltage
- 2Bad ground or supply wire
- 3Faulty module software
- 4Internal module failure (moisture or age)
Repair difficulty: Hard
What you can check yourself
Check the battery and terminals before anything else. If the fault appeared after a battery change or jump start, clear it and see whether it returns. Best left to a workshop. It needs a diagnostic tool and experience.
How we fix it
- We measure battery voltage and module supplies
- We check the grounds
- We update or reflash the software
- We repair or replace the module and code it
Standard SAE description: TCM Power Input Signal