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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1617 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC C0265, C0266: EBCM Relay Circuit >> Diagnostic Aids

Diagnostic Aids

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IMPORTANT: Whenever 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.

C0265 

Thoroughly inspect connections and circuitry that may cause an intermittent malfunction. Refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS , TESTING FOR ELECTRICAL INTERMITTENTS , CONNECTOR REPAIRS and to WIRING REPAIRS .

C0266 

Replace the EBCM if DTC C0266 continues to set intermittently.

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