Test Description

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

3. Measure the resistance of the wheel speed sensor in order to determine if the sensor has a valid resistance value.
4. Ensures that the wheel speed sensor is generating a valid AC voltage output.

Fig 1: DTC C0221-C0227 (w/o JL4) (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC C0221-C0227 (w/o JL4) (2 Of 2)

Courtesy of GENERAL MOTORS CORP.