Contents Wiring diagrams Section: Anti-Lock/traction Control All sections

C0266 Chevrolet TrailBlazer I

If equipped, the following actions occur

  1. The EBCM disables the ABS.
  2. The ABS indicator turns ON.
  3. The DIC displays the SERVICE BRAKE SYSTEM message.

Conditions for Clearing the DTC

The conditions for setting the DTC are no longer present and you use the scan tool Clear DTCs function.

Diagnostic Aids

IMPORTANTWhenever the EBCM is replaced for DTC C0265 or C0266, the ABS pump motor and motor circuitry must be tested for the proper resistance. Refer to steps 7 and 8 in the diagnostic table below for testing procedures and resistance values.