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Home >> Hummer >> 2007 >> H3 Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 38 (Antilock Brake System And Traction Control System) >> Diagnostic Information and Procedures >> Traction Off Indicator Inoperative >> Test Description

Test Description

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 6:  The traction control switch may be damaged if the traction control switch signal circuit is shorted to voltage.
Traction Off Indicator Inoperative

Step Action Yes No
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. Turn ON the ignition.
  2. Press and release the traction control switch.
Does the traction off indicator illuminate?		 Go to Diagnostic Aids Go to Step 3 
3
IMPORTANT: Do not press the traction control switch continuously for more than 60 seconds to avoid setting DTC B2745.
  1. Select body control module (BCM)/Data Display/Inputs on the scan tool.
  2. Observe the traction control system (TCS) Switch State parameter while pressing the traction control switch.
Does the scan tool display the switch state as Pressed?		 Go to Step 8  Go to Step 4 
4
IMPORTANT: DTC B0828 sets when this test is performed.
  1. Turn OFF the ignition.
  2. Disconnect the traction control switch harness connector.
  3. Turn ON the ignition.
  4. Use a test lamp connected to a good ground to carefully probe the traction control switch signal circuit terminal within the traction control switch harness connector.
Does the test lamp illuminate?		 Go to Step 6  Go to Step 5 
5 Observe the TCS Switch State parameter on the scan tool while the test lamp is connected.
Does the scan tool display the switch state as Pressed?		 Go to Step 8  Go to Step 7 
6  Test the traction control switch signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 12  Go to Step 11 
7 Test the traction control switch signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 12  Go to Step 9 
8 Test 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 12  Go to Step 10 
9 Test for poor connections at the harness connector of the BCM. 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 12  Go to Step 11 
10 Replace the accessory switch. Refer to Accessory Switch Replacement in Instrument Panel, Gages, and Console.
Did you complete the replacement?		 Go to Step 12  -
11 Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?		 Go to Step 12  -
12
  1. Turn ON the ignition.
  2. Press and release the traction control switch.
Does the traction off indicator illuminate?		 System OK Go to Step 3 
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