C1233

DTC C1233 Schematic:

CIRCUIT DESCRIPTION
The speed sensor used on this vehicle is a single point magnetic pickup. This sensor produces an AC signal that the EBTCM uses the frequency from to calculate the wheel speed.

CONDITIONS FOR SETTING THE DTC
The DTC can be set any time the ignition is in the ON position, and the EBTCM short to ground, or a short to battery.

ACTION TAKEN WHEN THE DTC SETS
A malfunction DTC is stored, ABS/TCS is disabled and the ABS and Traction Control Indicators are turned ON.

CONDITIONS FOR CLEARING THE DTC
- Condition for DTC is no longer present and scan tool clear DTC function is used.
- Fifty ignition cycles have passed with no DTC(s) 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.

DTC C1233 RF Wheel Speed Circuit Open Or Shorted (Part 1 Of 2):

DTC C1233 RF Wheel Speed Circuit Open Or Shorted (Part 2 Of 2):

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
[4] Checks for an open in the 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.