Pinpoint Test 22: The Traction Control Cannot Be Disabled

PINPOINT TEST 22: THE TRACTION CONTROL CANNOT BE DISABLED

Normal Operation

When the stability/traction control switch is pressed, a ground circuit is momentarily completed. The ABS module detects this ground signal and disables the traction control system. The system is enabled when the switch is pressed a second time or if the ignition switch is cycled.Circuit (Y/GY) connects the ABS module to the stability/traction control switch. The stability/traction control switch is grounded along circuit (B/L). When the switch is pressed, the 2 circuits are momentarily connected and the ABS module receives a ground signal. The ABS module sends a message to the instrument cluster (IC) and the PCM along the high speed controller area network (HS-CAN) bus to illuminate the traction control/roll stability control indicator.

Possible Causes
- Wiring, terminals or connectors
- Stability/traction control switch
- ABS module

Diagnostic Procedure

CAUTION:Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.