Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Shift the transmission into REVERSE.
4. With the scan tool, read DTCs.
  Does the scan tool display DTC B1669-REVERSE LAMP CONTROL CIRCUIT OPEN?
  
  Yes
  - Go To 2.
  No
  - The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
REVERSE LAMP BULBS
1. Turn the ignition off.
2. Inspect the Left and Right Reverse Lamp Bulb Assemblies.
  Are the inoperative bulbs OK?
  
  Yes
  - Go To 3.
  No
  - Replace the inoperative bulbs in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
(L1) BACKUP LAMP FEED CIRCUIT OPEN

Fig 1: Checking Backup Lamp Feed Circuit For An Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C6 harness connector.
3. Disconnect the Left and Right Tail Lamp Assembly harness connectors.
4. Measure the resistance of the (L1) Backup Lamp Feed circuit.
  Are the resistances below 5.0 Ohms?
  
  Yes
  - Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the open in the (L1) Backup Lamp Feed circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .