Pinpoint Test J: The Traction Control/Roll Stability Control System Cannot Be Disabled

CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

J1 CHECK THE VOLTAGE TO THE STABILITY/TRACTION CONTROL SWITCH
- Key in OFF position.
- Disconnect: Stability/Traction Control Switch C280
- Key in ON position.
- Measure the voltage between the stability/traction control switch C280-6, circuit CBP18 (GY/OG), harness side and ground.
- Is the voltage greater than 10 volts?
1. YES : Go to J2.
2. NO : VERIFY SJB fuse 18 (10A) is OK. If OK, REPAIR circuit CBP18 (GY/OG). TEST the system for normal operation.
J2 CHECK THE STABILITY TRACTION CONTROL SWITCH
- Measure the resistance between the stability/traction control switch C280 pin-1 and pin-6, component side while pressing and releasing the switch.
- Is the resistance less than 5 ohms with the switch pressed and greater than 10,000 ohms with the switch released?
1. YES : Go to J3.
2. NO : INSTALL a new stability/traction control switch. REFER to Stability/Traction Control Switch . TEST the system for normal operation.
J3 CHECK CIRCUIT CCA15 (YE/GY) FOR A SHORT TO VOLTAGE
- Key in OFF position.
- Disconnect: ABS Module C155
- Key in ON position.
- Measure the voltage between the ABS module C155-4, circuit CCA15 (YE/GY), harness side and ground.
- Is voltage present?
1. YES : REPAIR circuit CCA15 (YE/GY). TEST the system for normal operation.
2. NO : Go to J4.
J4 CHECK CIRCUIT CCA15 (YE/GY) FOR A SHORT TO GROUND
- Key in OFF position.
- Measure the resistance between the ABS module C155-4, circuit CCA15 (YE/GY), harness side and ground.
- Is the resistance greater than 10,000 ohms?
1. YES : Go to J5.
2. NO : REPAIR circuit CCA15 (YE/GY). TEST the system for normal operation.
J5 CHECK CIRCUIT CCA15 (YE/GY) FOR AN OPEN
- Measure the resistance between the ABS module C155-4, circuit CCA15 (YE/GY), harness side and stability/traction control switch C280-1, circuit CCA15 (YE/GY), harness side.
- Is the resistance less than 5 ohms?
1. YES : Go to J6.
2. NO : REPAIR circuit CCA15 (YE/GY). TEST the system for normal operation.
J6 CHECK FOR CORRECT ABS MODULE OPERATION
- Check ABS module C155 for:
  - corrosion.
  - pushed-out pins.
  - spread terminals.
- Connect: ABS Module C155
- Make sure the connector seats correctly, then operate the system and verify the concern is still present.
- Is the concern still present?
1. YES : INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . TEST the system for normal operation.
2. NO : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.