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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 942 (Anti-Lock Brake System) >> Diagnostic Information and Procedures >> DTC C0265: EBCM Relay Circuit; C0266: EBCM Relay Circuit >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

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 Table
G01706129Courtesy of GENERAL MOTORS CORP.
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