Test Description

The numbers below refer to the step numbers on the diagnostic table.

2: Use the scan tool to check the normal state of the Traction Off indicator control.
3: Ensures that the instrument cluster can operate the Traction Off indicator.

Traction Off Indicator Inoperative

Step	Action	Yes	No
Schematic Reference: ABS Schematics
1	Did you perform the ABS Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - ABS
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the TCS Warning Lamp parameter in the TCS data list. Does the scan tool display Off?	Go to Step 3	Go to Step 12
3	Turn OFF the ignition. Turn ON the ignition, with the engine OFF. Observe the Traction Off indicator on the instrument cluster (IPC) during the bulb check. Does the Traction Off indicator illuminate during the bulb check and then turn OFF?	Go to Step 4	Go to Step 13
4	Turn OFF the ignition. Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the TCS Enable Status parameter in the TCS data list. Activate the traction control switch. Does the Traction Switch parameter change state?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 5
5	Does the scan indicate that the TCS Enable Status parameter is Enabled?	Go to Step 6	Go to Step 7
6	Turn OFF the ignition. Disconnect the traction control switch connector. Turn ON the ignition, with the engine OFF. With a scan tool, observe the TCS Enable Status parameter. Does the scan tool display Enabled?	Go to Step 11	Go to Step 8
7	Turn OFF the ignition. Disconnect the traction control switch connector. Connect a 3 amp fused jumper from the signal circuit of the traction control switch to the ground circuit of the traction control switch. Turn ON the ignition, with the engine OFF. With a scan tool, observe the TCS Enable Status parameter. Does the scan tool display Enabled?	Go to Step 11	Go to Step 9
8	Test the signal circuit of the traction control switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 12
9	Test the signal circuit of the traction control switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 10
10	Test the ground circuit of the traction control switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 12
11	Inspect for poor connections at the harness connector of the traction control switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 14
12	Inspect for poor connections at the harness connector of the EBCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 15
13	Inspect for poor connections at the harness connector of the instrument cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 17	Go to Step 16
14	Replace the traction control switch. Did you complete the replacement?	Go to Step 17	-
15	Replace the EBCM. Refer to Electronic Brake Control Module Replacement . Did you complete the repair?	Go to Step 17	-
16	IMPORTANT: Perform the setup procedure for the replacement IPC. Replace the instrument cluster (IPC). Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages and Console.Did you complete the repair?	Go to Step 17	-
17	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2