Diagnostic Test

WARNING: This page is about a different car, the 2011 RAM Pickup. 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 Front Fog Lamps on.
4. With the scan tool, read DTCs.
  Does the scan tool display DTC: B16F9-FRONT LEFT FOG LAMP CONTROL CIRCUIT HIGH?
  
  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 THE (L89) LEFT FRONT FOG LAMP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS

Fig 1: Checking Left Front Fog Lamp Control Circuit For A Short To Voltage
Courtesy of CHRYSLER LLC
1. Turn the Fog Lamps off.
2. Turn the ignition off.
3. Disconnect the Left Front Fog Lamp harness connector.
4. Disconnect the TIPM C4 harness connector.
5. Turn the ignition on.
6. Measure the voltage between ground and the (L89) Left Front Fog Lamp Control circuit.
  Is there any voltage present?
  
  Yes
  - Repair the short to voltage on the (L89) Left Front Fog Lamp Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3.
CHECK THE TIPM FOR CORRECT OPERATION

Fig 2: Checking TIPM For Correct Operation Left Front Fog Lamp
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Reconnect the TIPM C4 harness connector.
3. Connect a 12-volt test light between the (L89) Left Front Fog Lamp Control circuit and the (Z904) Ground circuit at the Left Front Fog Lamp harness connector.
4. Turn the ignition on.
5. Turn the Fog Lamps on.
  Does the test light illuminate brightly?
  
  Yes
  - Replace the Left Front Fog Lamp Bulb in accordance with the Service Information. Refer to LAMP, Fog , Removal .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4.
CHECK THE (L89) LEFT FRONT FOG LAMP CONTROL CIRCUIT FOR AN OPEN IN THE HARNESS

Fig 3: Checking Left Front Fog Lamp Control Circuit For An Open
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C4 harness connector.
3. Measure the resistance of the (L89) Left Front Fog Lamp Control circuit between the Left Front Fog Lamp harness connector and the TIPM C4 harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 5.
  No
  - Repair the open in the (L89) Left Front Fog Lamp Control circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (Z904) GROUND CIRCUIT FOR AN OPEN IN THE HARNESS

Fig 4: Checking Ground Circuit For An Open In The Harness
Courtesy of CHRYSLER LLC
1. Using a 12-volt test light connected to 12-volts, check the (Z904) Ground circuit.
  Does the test light illuminate brightly?
  
  Yes
  - Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information. Refer to MODULE, Totally Integrated Power (TIPM) , Removal .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the open in the (Z904) Ground circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .