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Home >> Chevrolet >> 2005 >> Venture Base, Van Cargo Extended >> Repair and Diagnosis >> Brakes >> Antilock Brake System And Traction Control System >> Diagnostic Information And Procedures >> Traction Off Indicator Inoperative >> Test Description

Test Description

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

  1. 2:  Use the scan tool to check the normal state of the Traction Off indicator control.
  2. 3:  This step 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 Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2 
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With a scan tool, observe the Traction Control System (TCS) Warning Lamp parameter in the TCS data list.
Does the scan tool display Off?		 Go to Step 3  Go to Step 12 
3 
  1. Turn OFF the ignition.
  2. Turn ON the ignition, with the engine OFF.
  3. 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 13 
4
  1. Turn OFF the ignition.
  2. Install a scan tool.
  3. Turn ON the ignition, with the engine OFF.
  4. With a scan tool, observe the TCS Enable Status parameter in the TCS data list.
  5. 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
  1. Turn OFF the ignition.
  2. Disconnect the traction control switch connector.
  3. Turn ON the ignition, with the engine OFF.
  4. 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
  1. Turn OFF the ignition.
  2. Disconnect the traction control switch connector.
  3. Connect a 3-amp fused jumper from the signal circuit of the traction control switch to the ground circuit of the traction control switch.
  4. Turn ON the ignition, with the engine OFF.
  5. 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 electronic brake control module (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 IPC. Refer to Testing for Intermittent Conditions and Poor Connections andConnector 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 Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the repair?		 Go to Step 17  -
16 Replace the IPC. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
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 
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