The P0881 trouble code indicates that the transmission control module (TCM) has detected a problem with its power input signal, specifically indicating a range or performance issue.
P0881 TCM Power Input Signal Range/Performance
Code symptoms P0881.
1. Check Engine Light (CEL) is illuminated.
2. The transmission may enter into limp mode, restricting gear selection and performance.
3. Difficulty shifting gears.
4. Harsh shifting or transmission slipping.
5. Decreased fuel efficiency.
Causes of the code P0881.
1. Faulty transmission control module (TCM).
2. Poor electrical connection or corrosion in the TCM power circuit.
3. Blown fuse related to the TCM power supply.
4. Short or open circuit in the TCM power wiring harness.
5. Issues with the battery or charging system affecting TCM power.
Code Solutions P0881.
1. Replace any blown fuses related to the TCM power supply.
2. Repair or replace any damaged wiring or connectors in the TCM power circuit.
3. Ensure good electrical connections and clean any corrosion from connectors.
4. If the TCM itself is faulty, it may need to be replaced and reprogrammed.
5. Clear the trouble codes from the vehicle’s computer after repairs are complete.
6. Test drive the vehicle to confirm that the issue has been resolved.