Diagnostic Test

CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2
  No
  - Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the appropriate SYSTEM WIRING DIAGRAMS as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
CHECK THE RH MULTIFUNCTION SWITCH FOR AN INTERNAL SHORT
1. Turn the ignition off.
2. Disconnect the RH Multifunction Switch harness connector.
3. Turn the ignition on.
4. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 3
  No
  - Replace the Multifunction Switch in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (W8) FRONT WIPER ON/OFF RELAY CONTROL CIRCUITS FOR A SHORT TO VOLTAGE
1. Disconnect the BCM C8 harness connector.
2. Measure the voltage between ground and the (W8) Front Wiper ON/OFF Relay Control circuits at the RH Multifunction Switch harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (W8) Front Wiper ON/OFF Relay Control circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (W8) FRONT WIPER ON/OFF RELAY CONTROL CIRCUITS FOR AN OPEN
1. Measure the resistance between ground and the (W8) Front Wiper ON/OFF Relay Control circuits at the RH Multifunction Switch harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Replace Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL (BCM), REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the open in the (W8) Front Wiper ON/OFF Relay Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .