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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 335 (Antilock Brake System) >> Diagnostic Information and Procedures >> DTC C1221 To C1235: Left Front Wheel Speed Sensor Input Signal is 0 >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. 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. Measures the resistance of the wheel speed sensor in order to determine if the sensor has a valid resistance value.
  2. 5. Ensures that the wheel speed sensor is generating a valid AC voltage output.
Fig 1: DTC C1221-C1235 - Diagnostic Table
G01580300Courtesy of GENERAL MOTORS CORP.
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