Diagnostic Trouble Code
P0871 — Overdrive Brake Clutch Pressure — Circuit Low
Overdrive Brake Clutch Pressure — Circuit Low
Definition
The TCM has detected insufficient hydraulic pressure in the overdrive brake clutch circuit. This clutch is responsible for holding components in the overdrive gear range, and low pressure causes it to slip.
Common Causes
- Worn overdrive clutch pack
- Internal hydraulic leak in the overdrive circuit
- Failed overdrive servo or accumulator
- Low transmission fluid level