Test Description

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

2: This step tests the traction control switch using the scan tool.
4: This step tests the traction control switch signal circuit.
6: This step tests the PIM harness connector for serviceability.

DTC B2745: Traction Control Circuit Switch

Step	Action	Yes	No
Schematic Reference: Cruise Control Schematics
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Using the scan tool, view the traction control switch status parameter in the PIM data list. Does the scan tool display ACTIVE?	Go to Step 4	Go to Step 3
3	Switch the ignition to OFF for 30 seconds. Operate the vehicle within the conditions for setting DTC B2745. Using the scan tool, select the DTC display function. Does DTC B2745 fail this ignition cycle?	Go to Step 4	Go to Diagnostic Aids
4	Disconnect the wiring harness connector from the traction control switch. Using the scan tool, view the traction control switch status parameter in the PIM data list. Does the scan tool display ACTIVE?	Go to Step 6	Go to Step 5
5	Replace the traction control switch. Refer to Traction Control Switch Replacement (Manual Transmission) or Traction Control Switch Replacement (Automatic Transmission) . Has the repair been completed?	Go to Step 9	-
6	Test the traction control switch ground signal circuit for a short to ground. Has any fault been found and rectified?	Go to Step 9	Go to Step 7
7	Inspect for shorted terminals or poor connections at the powertrain interface module (PIM) wiring connector. Has any fault been found and rectified?	Go to Step 9	Go to Step 8
8	Replace the PIM. Refer to Powertrain Interface Module (PIM) Replacement . Has the repair been completed?	Go to Step 9	-
9	Using the scan tool, clear the DTCs. Switch the ignition to OFF for 30 seconds. Start the engine. Operate the vehicle within the conditions for running the DTC. Does DTC B2745 fail this ignition cycle?	Go to Step 2	System OK