Test Description

The numbers below Refer to the step numbers on the diagnostic table.

1. 4)  - This step tests if the battery positive voltage circuit can supply adequate power to the system relay.
2. 7)  - A shorted ABS pump motor or shorted motor circuitry may damage the contacts within the system relay. Follow this step to prevent damage to a replacement EBCM.

Fig 1: DTC C0265 Or C0266 Diagnosis

Courtesy of GENERAL MOTORS CORP.