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. Turn the Fog Lamps on.
4. With the scan tool read the DTC information.
  Does the scan tool read: B1659-FRONT FOG LAMP CONTROL CIRCUIT LOW?
  
  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 .
(L89) LEFT FRONT FOG LAMP CONTROL OUTPUT CIRCUIT SHORTED TO GROUND

Fig 1: Checking Left Front Fog Lamp Control Output Circuit For A Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C3 harness connector.
3. Disconnect the Left and Right Front Fog Lamp harness connectors.
4. Measure the resistance between ground and the (L89) Front Fog Lamp Control Output circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (L89) Left Front Fog Lamp Control Output circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3.
(L90) RIGHT FOG LAMP CONTROL OUTPUT CIRCUIT SHORTED TO GROUND

Fig 2: Checking Right Front Fog Lamp Control Output Circuit For A Short To Ground
Courtesy of CHRYSLER LLC
1. Measure the resistance between ground and the (L90) Right Front Fog Lamp Control Output circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (L90) Right Front Fog Lamp Control Output circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .