DTC C121 Chevrolet
Control Module Communication BUS Off
Control Module Communication BUS Off
Description
When either of the following is detected: 1. After the output of data from the skid control ECU is completed, the sending continues for 5 seconds or more. 2. The condition that bus OFF state occurs once or more within 100 ms occurs 10 times in succession. (Sent signals cannot be received. )
Cause and Solution
CAN communication system
Video Guide
Diagnostic Info
- DTC Code: C121
- Brand: Chevrolet