Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. 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. With the scan tool, read DTCs.
  Does the scan tool display DTC: B21F9-13-EXTERIOR LIGHTING POWER SUPPLY INPUT 2 - CIRCUIT OPEN 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 STANDARD PROCEDURE .
CHECK FOR A MISSING OR BLOWN FUSE
1. Turn the ignition off.
2. Visually inspect Fuse F144.
  Is the fuse missing or blown?
  
  Yes
  - If the fuse is blown, repair the short to ground in the (A904) Fused B(+) circuit. Replace the fuse.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK THE (A904) FUSED B(+) CIRCUIT FOR AN OPEN

Fig 1: Checking Fused B(+) Circuit For An Open
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the BCM B harness connector.
3. Using a 12-volt test light connected to ground, check the (A904) Fused B(+) circuit in the BCM B harness connector.
  Does the test light illuminate brightly?
  
  Yes
  - Replace the BCM in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Repair the open in the (A904) Fused B(+) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .