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B2318 Mercury Code - Mirror Passenger Vertical Feedback Potentiometer Circuit Short To Battery

- Code Popularity: 403 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2318 Mercury?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Passenger Exterior Mirror
  • Passenger Exterior Mirror harness is open or shorted
  • Passenger Exterior Mirror circuit poor electrical connection
  • Faulty Passenger Exterior Mirror Control Switch
  • Faulty Driver Door Module (DDM)
  • Faulty Driver Seat Module (DSM)
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC B2318 Mercury?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2318 Mercury code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B2318 Mercury Description

Under normal operation, the exterior mirror control switch receives power and ground from the circuit. The exterior mirror control switch uses circuits to send input signals to the Driver Door Module (DDM). The DDM controls the Left (LH) exterior mirror motor movement by supplying the appropriate power and ground to circuits. The DDM communicates with the Driver Seat Module (DSM) through the Medium-Speed Controller Area Network (MS-CAN) whenever the DDM receives an input signal from the exterior mirror control switch for the Right (RH) mirror. The DSM controls the RH exterior mirror motor movement by supplying the appropriate power and ground.
The memory mirror system uses feedback potentiometers, located in the LH and RH exterior mirrors, in order to track the movement of the LH and RH exterior mirror motors. The DDM supplies the LH and RH exterior mirror feedback potentiometer reference voltage and ground through circuits. The DDM receives feedback from the LH and RH exterior mirror feedback potentiometer through left/right and up/down circuits.

OBDII Code B2318 Mercury - Mirror Passenger Vertical Feedback Potentiometer Circuit Short To Battery - AutoCodes.com
B2318 Mercury Code - Mirror Passenger Vertical Feedback Potentiometer Circuit Short To Battery

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