Test Description

WARNING: This page is about a different car, the 2007 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

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 control.
3: Ensures that the instrument cluster can operate the Traction Off indicator.

Traction Off Indicator Inoperative

Step	Action	Yes	No
Schematic Reference: Antilock Brake System Schematics Connector End View Reference: Antilock Brake System Connector End Views , Displays and Gages Connector End Views or Data Communication Connector End Views
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the TCS Warning Indicator/Message parameter in the DRP/ABS/TCS data list. Does the scan tool display Off?	Go to Step 3	Go to Step 10
3	Turn OFF the ignition. Turn ON the ignition, with the engine OFF. Observe the Traction Off indicator on the instrument panel 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 11
4	Turn OFF the ignition. Install a scan tool. Turn ON the ignition, with the engine OFF. With a scan tool, observe the TCS On/Off Switch parameter in the Rear Integration Module data list. Activate the traction control switch. Does the TCS On/Off Switch parameter change state?	Go to Testing for Intermittent Conditions and Poor Connections	Go to Step 5
5	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 Switch State parameter. Does the scan tool display On?	Go to Step 9	Go to Step 6
6	Test the signal circuit of the traction control switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 7
7	Test the ground circuit of the traction control switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 8
8	Inspect for poor connections at the harness connector of the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 12
9	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 . Did you find and correct the condition?	Go to Step 16	Go to Step 13
10	Inspect for poor connections at the harness connector of the EBCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 14
11	Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	Go to Step 16	Go to Step 15
12	Replace the rear integration module (RIM). Refer to Control Module References for replacement, setup and programming. Did you complete the replacement?	Go to Step 16	-
13	Replace the traction control switch. Refer to Traction Control Switch Replacement . Did you complete the replacement?	Go to Step 16	-
14	Replace the EBCM. Refer to Control Module References for replacement, setup and programming. Did you complete the replacement?	Go to Step 16	-
15	Replace the IPC. Refer to Control Module References for replacement, setup and programming. Did you complete the replacement?	Go to Step 16	-
16	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2