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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 591 (Anti-Lock Brake System) >> Diagnostic Information & Procedures >> DTC C0221, C0222, C0223, C0225, C0226, C0227: EBCM Detects Open Or Shorted Wheel Speed Sensor >> Test Description

Test Description

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

  1. 3.  Measure the resistance of the wheel speed sensor in order to determine if the sensor has a valid resistance value.
  2. 4.  Ensures that the wheel speed sensor is generating a valid AC voltage output.
Fig 1: DTC C0221-C0227
G01664000Courtesy of GENERAL MOTORS CORP.