Diagnostic Test

READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
3. With the scan tool, erase all DTCs.
4. Turn the ignition off for a minimum of 10 seconds.
5. Turn the ignition on.
6. Using the recorded Environmental Data and the When Monitored Conditions, operate the vehicle in the conditions that set the DTC.
7. With the scan tool, read DTCs.
Did the DTC return?

Yes
- Go To 2
No
- Perform the TESTING FOR AN INTERMITTENT CONDITION diagnostic procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE BODY CONTROL MODULE (BCM) FOR RELATED DTCS
1. With the scan tool, read BCM DTCs.
  Are there any BCM DTCs present?
  
  Yes
  - Repair the BCM DTCs. Refer to DIAGNOSTIC CODE INDEX .
  No
  - Go To 3
CHECK SPEED CONTROL SWITCH OPERATION
1. With the scan tool, read the Speed Control Switch status under the Steering Column Control Module (SCCM) while pressing multiple switch positions.
  Does the switch positions change correctly in the scan tool?
  
  Yes
  - Inspect the wiring and connectors between the SCCM and the Speed Control Switch and the output to the BCM for any possible problems. If no problems are found, replace and program the SCCM in accordance with the Service Information. Refer to MODULE, STEERING COLUMN CONTROL (SCCM), REMOVAL AND INSTALLATION .
  - Perform the DRIVER ASSISTANCE SYSTEM MODULE (DASM) VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Inspect the wiring and connectors between the SCCM and the Speed Control Switch. If no problems are found, replace the Speed Control Switch in accordance with the Service Information. Refer to SWITCH, SPEED CONTROL, REMOVAL AND INSTALLATION .
  - Perform the DRIVER ASSISTANCE SYSTEM MODULE (DASM) VERIFICATION TEST. Refer to STANDARD PROCEDURE .