DTC U1048 GMC
PCM ECM EEPROM Check Error
PCM ECM EEPROM Check Error
Description
Key on, and the PCM detected a ROM Check Error occurred during the initial self-test period. Note: The PCM will flash the MIL when this trouble code is set.
Cause and Solution
Clear the trouble codes and retest for this trouble code. If the same trouble code resets, the PCM has failed and must be replaced to repair this problem.
Video Guide
Diagnostic Info
- DTC Code: U1048
- Brand: GMC