AutoCodes – Generic – B2315

B2315 Code - Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground

Quick Answer

Under normal operation, the exterior mirror control switch receives power and ground from the circuit. Common causes include Faulty Passenger Exterior Mirror, Passenger Exterior Mirror harness is open or shorted, Passenger Exterior Mirror circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B2315 indicates Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground.
Common causes
Common causes include Faulty Passenger Exterior Mirror, Passenger Exterior Mirror harness is open or shorted, Passenger Exterior Mirror circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 4,028
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 07, 2019
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Code B2315 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 B2315 - Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground - AutoCodes.com
B2315 Code - Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground

What are the Possible Causes of the DTC B2315?

  • 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)

How to Fix the DTC B2315?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2315 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B2315 code?

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2315 Code

1. What are common symptoms of OBDII code B2315?

- Common symptoms include malfunctioning power mirrors on the passenger side, erratic mirror movement, or complete loss of mirror adjustment.

2. What can cause the Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground code B2315?

- This code is often triggered by a short circuit between the feedback potentiometer wiring and the ground in the passenger side mirror assembly.

3. How can I diagnose the Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground issue?

- Diagnostic steps may involve visually inspecting the mirror wiring, testing the feedback potentiometer for continuity, and using a multimeter to check for short circuits.

4. Can a DIY enthusiast repair OBDII code B2315 at home?

- Repairing this code may require some technical knowledge and familiarity with automotive electrical systems. It is recommended to seek professional help if uncertain.

5. Are there any temporary fixes for the Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground issue?

- Temporary fixes like disconnecting the power to the mirror or manually adjusting it may be possible, but they are not long-term solutions and may not address the root cause.

6. How much does it typically cost to repair OBDII code B2315?

- The cost of repair can vary depending on the extent of the damage and the labor rates of the service provider. It is advisable to obtain quotes from multiple sources.

7. Can OBDII code B2315 affect other electrical systems in the vehicle?

- While this code specifically relates to the passenger side mirror, electrical issues in one part of the vehicle can sometimes have secondary effects on other systems.

8. Is it safe to continue driving with the Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground code active?

- While the vehicle may still be operable, it is not ideal to ignore this issue as it can lead to further electrical problems or compromise driver visibility and safety.

9. How long does it take to repair the Mirror Passenger Horizontal Feedback Potentiometer Circuit Short To Ground issue?

- The repair time can vary depending on the accessibility of the mirror assembly and the complexity of the wiring. A skilled technician can typically complete the repair within a few hours.

10. Can extreme weather conditions contribute to triggering OBDII code B2315?

- Harsh weather conditions like extreme cold or heat may exacerbate existing electrical issues in the mirror assembly, potentially leading to the triggering of this code.

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