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 MANUALSFORD2009FUSION SEL, 3.0 1, FWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 587 (REAR VIEW MIRROR SYSTEM)DIAGNOSIS AND TESTINGREAR VIEW MIRRORSINSPECTION AND VERIFICATION
2009 Ford Fusion SEL, 3.0 1, FWD
Inspection and Verification
2009 Ford Fusion SEL, 3.0 1, FWDSECTION Inspection and Verification
WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
- Verify the customer concern.
- Inspect the components of the exterior mirror system to determine if any of the following mechanical or electrical concerns apply:VISUAL INSPECTION TABLE
Mechanical Electrical - Exterior mirrors
- Exterior mirror control switch
- Auto-dimming interior mirror
- Smart junction box (SJB) fuse 10 (7.5A)
- Battery junction box (BJB) fuse(s)
- Circuitry
- Driver seat module (DSM)
- Loose or corroded connections
- Heated rear window relay(s)
- If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
- If the scan tool does not communicate with the VCM:
- check the VCM connection to the vehicle.
- check the scan tool connection to the VCM.
- refer to PINPOINT TEST O: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL , no power to the scan tool, to diagnose no communication with the scan tool.
- If the scan tool does not communicate with the vehicle:
- verify the ignition key is in the ON position.
- verify the scan tool operation with a known good vehicle.
- refer to PINPOINT TEST I: THE DRIVER SEAT MODULE (DSM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL to diagnose no response from the driver seat module (DSM).
- Carry out the network test.
- If the scan tool responds with no communication from one or more modules, refer to PINPOINT TEST O: NO MODULE/NETWORK COMMUNICATION - NO POWER TO THE DIAGNOSTIC TOOL .
- If the network test passes, retrieve and record the continuous memory diagnostic trouble codes (DTCs).
- Clear the continuous DTCs and carry out the self-test diagnostics for the DSM.
- If the DTCs retrieved are related to the concern, go to the DRIVER SEAT MODULE (DSM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX . For all other DTCs, refer to DIAGNOSTIC TROUBLE CODE TABLE .
- If no DTCs related to the concern are retrieved, GO to SYMPTOM TABLE .DRIVER SEAT MODULE (DSM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
DTC Description Source Action B1234 Mirror Switch Invalid Code DSM GO to PINPOINT TEST D . B1342 ECU Is Defective DSM INSTALL a new module. REFER to REMOVAL AND INSTALLATION . B1530 Memory Set Switch Circuit Short to Ground DSM GO to PINPOINT TEST E . B1534 Memory 1 Switch Circuit Short to Ground DSM GO to PINPOINT TEST E . B1538 Memory 2 Switch Circuit Short to Ground DSM If the memory mirror is inoperative, GO to PINPOINT TEST D . If the memory mirror is inoperative from the memory set switch, GO to PINPOINT TEST E . B1667 Mirror Driver Up/Down Motor Stalled DSM GO to PINPOINT TEST E . B1668 Mirror Driver Right/Left Motor Stalled DSM If the memory mirror is inoperative, GO to PINPOINT TEST D . If the memory mirror is inoperative from the memory set switch, GO to PINPOINT TEST E . B1669 Mirror Passenger Up/Down Motor Stalled DSM If the memory mirror is inoperative, GO to PINPOINT TEST D . If the memory mirror is inoperative from the memory set switch, GO to PINPOINT TEST E . B1670 Mirror Passenger Right/Left Motor Stalled DSM If the memory mirror is inoperative, GO to PINPOINT TEST D . If the memory mirror is inoperative from the memory set switch, GO to PINPOINT TEST E . B2312 Passenger Mirror Horizontal Feedback Potentiometer Circuit Failure DSM GO to PINPOINT TEST E . B2314 Passenger Mirror Horizontal Feedback Potentiometer Circuit Short to Battery DSM GO to PINPOINT TEST E . B2316 Passenger Mirror Vertical Feedback Potentiometer Circuit Failure DSM GO to PINPOINT TEST E . B2318 Passenger Mirror Vertical Feedback Potentiometer Circuit Short to Battery DSM GO to PINPOINT TEST E . B2320 Driver Mirror Horizontal Feedback Potentiometer Circuit Failure DSM GO to PINPOINT TEST E . B2322 Driver Mirror Horizontal Feedback Potentiometer Circuit Short to Battery DSM GO to PINPOINT TEST E . B2324 Driver Mirror Vertical Feedback Potentiometer Circuit Failure DSM GO to PINPOINT TEST E . B2326 Driver Mirror Vertical Feedback Potentiometer Circuit Short to Battery DSM GO to PINPOINT TEST E . B1900 CAN Communication Bus Fault DSM REFER to MODULE COMMUNICATIONS NETWORK .
NOTE:
Make sure to use the latest scan tool software release.
NOTE:
The vehicle communication module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
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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.