Diagnostic Test

2009 Jeep Compass Sport, 2.0 ASECTION Diagnostic Test
  1. 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 the DTC information.

      Does the scan tool read: B1661-FRONT FOG LAMP CONTROL CIRCUIT OPEN?

      Yes 

      • Go to step  2

      No 

  2. FRONT FOG LAMP BULBS 
    1. Turn the ignition off.
    2. Inspect the Left and Right Front Fog Lamp Bulb Assemblies.

      Are the inoperative bulbs OK?

      Yes 

      • Go to step  3

      No 

  3. (L89)(L90) FRONT FOG LAMP CONTROL CIRCUIT OPEN 
    Fig 1: Checking Front Fog Lamp Control Circuit For Open
    GC0100153Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the TIPM C11 harness connector.
    3. Disconnect the Left and Right Front Fog Lamp harness connectors.
    4. Measure the resistance of the (L89)(L90) Front Fog Lamp Control circuit.

      Is the resistance above 5.0 Ohms?

      Yes 

      No 

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.