C1232

CIRCUIT DESCRIPTION
The speed sensor used on this vehicle is a single point magnetic pickup. This sensor produces an AC signal that the Electronic Brake and Traction Control Module (EBTCM) uses the frequency from to calculate the wheel speed.

CONDITIONS FOR SETTING THE DTC
The Diagnostic Trouble Code (DTC) can be set any time the ignition is in the ON position, and the Electronic Brake and Traction Control Module (EBTCM) senses an open, a short to ground, or a short to battery.

ACTION TAKEN WHEN THE DTC SETS
ABS/TCS/Active Handling (if equipped with RPO JL4) are disabled.
^ Indicators that turn on:
- ABS indicator
- Car Icon (TCS indicator)
^ Messages displayed on the Driver Information Center (DIC):
- Service ABS
- Service Traction System
- Service Active HNDLG (if equipped with Active Handling RPO JL4)

CONDITIONS FOR CLEARING THE DTC
^ Condition for Diagnostic Trouble Code (DTC) is no longer present and Scan tool clear DTC function is used.
^ Fifty ignition cycles have passed with no DTCs detected.

DIAGNOSTIC AIDS
^ It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
^ An intermittent malfunction can be caused by poor connections, broken insulation, or a wire that is broken inside the insulation.
^ If an intermittent malfunction exists refer to Testing for Electrical Intermittents in diagnostic Aids.

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
4. Checks for an open in the Wheel Speed Sensor (WSS) or WSS CKT.
12. Checks for a short to ground in the WSS or WSS CKT.
19. Checks for a short to voltage in the WSS CKT.
21. Checks for a short to voltage in the WSS CKT.

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Part 2 Of 2:

DTC C1232 LF WHEEL SPEED CIRCUIT OPEN OR SHORTED