DTC P20BC GMC
Internal Control Module Software Incompatibility. System Internal Failures. Incorrect Component Installed
Internal Control Module Software Incompatibility. System Internal Failures. Incorrect Component Installed
Description
The Closing velocity module (CVM) compares its configuration ID with the ID that the Supplemental Restraint System Module (SRS) transmits. The diagnostic trouble code (DTC) is stored if the control module detects that: The control modules configuration ID differs from the ID that the Supplemental Restraint System Module (SRS) transmits. The control modules test for the diagnostic trouble code (DTC) starts when: The voltage supply to the control module is 9-16 V. The signal configuration is sent to the control module. Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Cause and Solution
Incorrect configuration ID (the control module is not intended for this vehicle, for example it is a used control module with different software hardware).
Video Guide
Diagnostic Info
- DTC Code: P20BC
- Brand: GMC