Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. Turn the Right Turn Signal on.
3. 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 .
ATTEMPT TO SET THE OPPOSITE DTC
1. Turn the ignition off.
2. Disconnect the Right Front Lamp Assembly C1 harness connector.
3. Turn the ignition on.
4. Turn the Right Turn Signal on.
5. With the scan tool, read DTCs.
  Does the scan tool display DTC: B163E-18-FRONT RIGHT TURN LAMP CONTROL - UNDER CURRENT?
  
  Yes
  - Replace the Right Turn Signal Bulb in accordance with the Service Information. Refer to UNIT, FRONT LAMP, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (L60) RIGHT FRONT TURN SIGNAL CONTROL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the BCM C4 harness connector.
3. Measure the resistance between ground and the (L60) Right Front Turn Signal Control circuit.
  Is the resistance above 10K Ohms?
  
  Yes
  - Replace the 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 short to ground in the (L60) Right Front Turn Signal Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .