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 MANUALSJEEP2011COMPASS LIMITED, AWD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTAUDIO (RADIO) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB143D-MICROPHONE 2 CIRCUIT PERFORMANCEDIAGNOSTIC TEST
2011 Jeep Compass Limited, AWD, Standard
Diagnostic Test
2011 Jeep Compass Limited, AWD, StandardSECTION Diagnostic Test
- CHECK FOR ACTIVE DTC
- Turn the ignition on.
- With the scan tool, read the active DTCs.
Does the scan tool display this DTC as active?
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.
- INSIDE REARVIEW MIRROR
- Turn the ignition off.
- Disconnect the Inside Rearview Mirror C2 harness connector.
- Turn the ignition on.
- With the scan tool, read the DTCs.
Does the scan tool display this DTC as active?
Yes
- Go To 3.
No
- Replace the Inside Rearview Mirror in accordance with the Service Information.
- Refer to Standard Procedure and perform the BODY VERIFICATION TEST.
- (X722) MICROPHONE 2 IN (+) CIRCUIT SHORTED TO GROUND
- Turn the ignition off.
- Disconnect the Radio C2 harness connector.
- 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 a short to ground.
- Refer to Standard Procedure and perform the BODY VERIFICATION TEST.
No
- Go To 4.
- (X722) MICROPHONE 2 IN (+) CIRCUIT SHORTED TO VOLTAGE
- Turn the ignition on.
- Measure the voltage between the (X722) Microphone 2 IN (+) circuit and ground.
Is the voltage above 1.0 volt?
Yes
- Repair the short to voltage in the (X722) Microphone 2 IN (+) circuit.
- Refer to Standard Procedure and perform the BODY VERIFICATION TEST.
No
- Go To 5.
- (X722) MICROPHONE 2 IN (+) CIRCUIT OPEN
- Turn the ignition off.
- Measure the resistance of the (X722) Microphone 2 IN (+) circuit between the Radio C2 connector and the Inside Rearview Mirror connector.
Is the resistance below 5.0 ohms?
Yes
- Replace the Radio in accordance with the Service Information.
- Refer to Standard Procedure and perform the BODY VERIFICATION TEST.
No
- Repair the (X722) Microphone 2 IN (+) circuit for an open.
- Refer to Standard Procedure and perform the BODY VERIFICATION TEST.
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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.