DTC U1500 Buick
A T Transmission Relay Circuit Malfunction
A T Transmission Relay Circuit Malfunction
Description
Key on or engine started, and the PCM detected an unexpected voltage condition on the TCC solenoid control circuit during the test.
Cause and Solution
Generator power source circuit to relay control circuit is openTransmission relay power circuit is open (check fuse in PCC)Transmission control circuit is open or shorted to groundTransmission relay is damaged or has failedPCM has failed
Video Guide
Diagnostic Info
- DTC Code: U1500
- Brand: Buick