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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Body Control Module (BCM) - DTCS B10B3-14 To B1812-15) >> DTC Troubleshooting >> B1703-15-Rear Right Fog Lamp Control - Circuit Short To Battery Or Open >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. INTERMITTENT CONDITION 
    1. Turn the ignition on.
    2. With the scan tool, clear all DTCs.
    3. Turn the Fog Lamps on.
    4. With the scan tool, read DTCs.

      Does the scan tool display DTC: B1703-15-REAR RIGHT FOG LAMP CONTROL - CIRCUIT SHORT TO BATTERY OR OPEN?

      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 .
  2. CHECK THE (L898) RIGHT REAR FOG LAMP DRIVER CIRCUIT FOR A SHORT TO VOLTAGE IN THE HARNESS 
    Fig 1: Checking Right Rear Fog Lamp Driver Circuit For A Short To Voltage In Harness
    GC0141810Courtesy of CHRYSLER GROUP, LLC
    1. Turn the Fog Lamps off.
    2. Turn the ignition off.
    3. Disconnect the Right Rear Fog Lamp harness connector.
    4. Disconnect the BCM E harness connector.
    5. Turn the ignition on.
    6. Measure the voltage between ground and the (L898) Right Rear Fog Lamp Driver circuit.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage on the (L898) Right Rear Fog Lamp Driver circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To  3
  3. CHECK THE (L898) RIGHT REAR FOG LAMP DRIVER CIRCUIT FOR AN OPEN IN THE HARNESS 
    Fig 2: Checking Right Rear Fog Lamp Driver Circuit For An Open In Harness
    GC0143242Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Measure the resistance of the (L898) Right Rear Fog Lamp Driver circuit between the Right Rear Fog Lamp harness connector and the BCM E harness connector.

      Is the resistance below 5.0 Ohms?

      Yes 

      • Go To  4

      No 

      • Repair the open in the (L898) Right Rear Fog Lamp Driver circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  4. CHECK THE (Z911) GROUND CIRCUIT FOR AN OPEN IN THE HARNESS 
    Fig 3: Checking Ground Circuit For An Open In Harness
    GC0141811Courtesy of CHRYSLER GROUP, LLC
    1. Using a 12-volt test light connected to 12-volts, check the (Z911) Ground circuit.

      Does the test light illuminate brightly?

      Yes 

      • Go To  4

      No 

      • Repair the open in the (Z911) Ground circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  5. CHECK THE BCM FOR CORRECT OPERATION 
    Fig 4: Checking BCM For Correct Operation
    GC0141812Courtesy of CHRYSLER GROUP, LLC
    1. Reconnect the BCM E harness connector.
    2. Connect a 12-volt test light between the (L898) Right Rear Fog Lamp Driver circuit and the (Z911) Ground circuit at the Right Rear Fog Lamp harness connector.
    3. Turn the ignition on.
    4. Turn the Fog Lamps on.

      Does the test light illuminate brightly?

      Yes 

      No