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 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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR AN ACTIVE DTC WITH THE RIGHT FRONT PARK/TURN LAMP HARNESS CONNECTOR DISCONNECTED
1. Turn the ignition off.
2. Disconnect the Right Front Lamp Assembly C2 harness connector.
3. Turn the ignition on.
4. Activate the Right Turn Signal.
5. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 3
  No
  - Replace the Right Front Turn Signal Bulb in accordance with the service information. Replace the Park Lamp Bulb in accordance with the service information. Refer to UNIT, FRONT LAMP, LOWER, REMOVAL and UNIT, FRONT LAMP, UPPER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK FOR AN ACTIVE DTC WITH THE RIGHT REAR PARK/TURN LAMP HARNESS CONNECTOR DISCONNECTED
1. Turn the ignition off.
2. Disconnect the Right Tail Lamp Assembly harness connector.
3. Turn the ignition on.
4. Activate the Right Turn Signal.
5. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 4
  No
  - Replace the Right Rear Turn Signal Bulb in accordance with the service information. Refer to LAMP, TAIL STOP TURN, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (L60) RIGHT FRONT TURN SIGNAL DRIVER CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the BCM C1 harness connector.
3. Measure the resistance between ground and the (L60) Right Front Turn Signal Driver circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the short to ground in the (L60) Right Front Turn Signal Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 5
CHECK THE (L62) RIGHT REAR TURN SIGNAL DRIVER CIRCUIT FOR A SHORT TO GROUND
1. Disconnect the BCM C3 harness connector.
2. Measure the resistance between ground and the (L62) Right Rear Turn Signal Driver circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the short to ground in the (L62) Right Rear Turn Signal Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the BCM in accordance with the service information. Refer to REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .