P0882TCM Power Input Signal Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- The TCM power input codes watch the supply voltage of the gearbox module or of its solenoid supply. Without a proper supply all solenoids go dead and the gearbox falls back to its hydraulic emergency gear with maximum line pressure: a fixed gear, harsh engagement, no shifting. Ford's external gearbox modules check a window of 9 to 16 V; GM reports the same under P0562/P0563. P0882 means the supply is too low: Ford sets it below 9 V, continuously and with MIL. Chrysler's RFE, RLE and TE automatics test it when the key goes to run: if the module reads less than 3 V at the transmission control relay outputs while commanding the relay on, the code sets and the solenoids stay dead.
- What you may notice
- MIL on
- Limp mode in a fixed gear, no shifting
- Torque converter clutch stays open
- Likely causes
- LikelyWeak battery or alternator not charging
- LikelyTransmission relay, fuse or fuse box module faulty (Chrysler)
- PossibleCorroded ground or supply wire, connector at the module
- RareModule faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €30 – €800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.