Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2009PATRIOT LIMITED, EDG, AUTOMATIC CVTREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMSHANDS FEED MODULE (HFM) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB143E-MICROPHONE 2 CIRCUIT LOWDIAGNOSTIC TEST

2009 Jeep Patriot Limited, EDG, Automatic CVT

Diagnostic Test

2009 Jeep Patriot Limited, EDG, Automatic CVTSECTION Diagnostic Test

CHECK FOR ACTIVE DTC
1. With the scan tool, read the active DTCs.
2. Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle.
3. Attempt to make a phone call with the system.
4. With the scan tool, read the active DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 2
  No
  - If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
INSIDE REARVIEW MIRROR

Fig 1: DISCONNECT THE REARVIEW MIRROR
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Inside Rearview Mirror C2 harness connector.
3. Turn the ignition on.
4. With the scan tool, read the DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 3
  No
  - Replace the Inside Rearview Mirror in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
(X722) MICROPHONE 2 IN (+) CIRCUIT SHORTED TO GROUND

Fig 2: CHECKING MICROPHONE 2 IN (+) CIRCUIT FOR SHORT TO GROUND
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Hands Free Module harness connector.
3. Measure the resistance between ground and the (X722) Microphone 2 IN (+) circuit.
  Is the resistance below 10K ohms?
  
  Yes
  - Repair the (X722) Microphone 2 IN (+) circuit for short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Replace the Hands Free Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure

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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.