DTC P1A64 Chevrolet
Internal Control Module Software Incompatibility
Internal Control Module Software Incompatibility
Description
The electronic throttle control (ETC) system uses multiple microprocessors within the PCM, each having its own software level and function. The microprocessors must have the correct level of software in order to communicate and function together. This DTC sets when there are incompatible software levels within the PCM that control the ETC system.
Diagnosis:
Verify the PCM is at the latest calibration level.
Video Guide
Diagnostic Info
- DTC Code: P1A64
- Brand: Chevrolet