C0035

ABS/VSS Circuit Schematic:

CIRCUIT DESCRIPTION
The rear wheel speed signal originates from the Vehicle Speed Sensor (VSS) which is connected to the Vehicle Speed Sensor Buffer (VSSB). The Electronic Brake Control Module (EBCM) receives the rear wheel speed signal from the VSSB.

CONDITIONS FOR SETTING DTC
^ EBCM not seeing the correct voltage level from the VSSB.

ACTION TAKEN WHEN THE DTC SETS
^ ANTILOCK indicator lamp is illuminated
^ ABS is disabled

NOTE: Diagnostic Trouble Code (DTC) C0035 is a condition latched DTC which indicates the above is true only as long as the condition persists.

CONDITIONS FOR CLEARING THE DTC
^ Conditions for setting the DTC are repaired and the Scan Tool clear (DTCs) function is used.

DIAGNOSTIC AIDS
A fault in CKT 696 can cause this DTC to set. If the voltage readings are low or varying, the battery, charging system, or intermittent connections could be the cause. Check these areas before replacing any components.

DTC C0035 Rear Speed Signal Circuit Open Or Shorted To Ground (Diesel Engines Only):

TEST DESCRIPTION
The numbers below refer to the step numbers on the chart.
[3] Checks for VSSB voltage at the EBCM.
[4] Checks resistance of CKT 696.
[6] Checks for a short to ground in CKT 696.