AutoCodes – Generic – B2316

B2316 Code - Mirror Passenger Vertical Feedback Potentiometer Circuit Failure

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
B2316 indicates Mirror Passenger Vertical Feedback Potentiometer Circuit Failure.
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 11,990
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 B2316 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 B2316 - Mirror Passenger Vertical Feedback Potentiometer Circuit Failure - AutoCodes.com
B2316 Code - Mirror Passenger Vertical Feedback Potentiometer Circuit Failure

What are the Possible Causes of the DTC B2316?

  • 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 B2316?

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 B2316 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 B2316 code?

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Need Help with the Code?

Get the B2316 code diagnosed by a professional: Find a repair shop in your area

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 B2316 Code

1. What are the common symptoms of OBDII code B2316?

- Common symptoms include erratic movement or failure of the passenger side mirror, loss of vertical adjustment control, and illuminated warning lights on the dashboard.

2. What causes the OBDII code B2316 to occur?

- The code B2316 is triggered when there is a circuit failure in the vertical feedback potentiometer of the passenger side mirror, which can be due to wiring issues, potentiometer failure, or a faulty mirror actuator.

3. How can I diagnose the Mirror Passenger Vertical Feedback Potentiometer Circuit Failure?

- Diagnosis usually involves using a multimeter to test the potentiometer's resistance values, checking the wiring harness for continuity and damage, and inspecting the mirror actuator for proper functionality.

4. Can I still drive my vehicle with the B2316 code present?

- While it is possible to drive the vehicle with this code, it is not recommended as the malfunctioning mirror may affect visibility and safety while on the road.

5. How can I repair the Mirror Passenger Vertical Feedback Potentiometer Circuit Failure?

- Repair typically involves replacing the faulty potentiometer, repairing any damaged wiring, or replacing the mirror actuator if necessary. It is recommended to consult a professional mechanic for this repair.

6. Are there any DIY tips for fixing the B2316 code?

- DIY tips include checking the wiring connections for any loose or damaged wires, ensuring the potentiometer is securely connected, and verifying the mirror's mechanical operation before replacing any components.

7. Can extreme weather conditions cause the B2316 code to appear?

- Yes, extreme weather conditions such as excessive heat or moisture can potentially damage the mirror components and lead to circuit failures triggering the B2316 code.

8. Will resetting the OBDII system clear the B2316 code?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the mirror's potentiometer circuit is not addressed, the code is likely to reappear.

9. How much does it cost to repair the Mirror Passenger Vertical Feedback Potentiometer Circuit Failure?

- The cost of repair can vary depending on the extent of the damage, the need for replacement parts, and labor costs. It is advisable to obtain quotes from reputable auto repair shops.

10. Is the B2316 code specific to a certain make or model of vehicle?

- The B2316 code is a generic OBDII code that can appear in various makes and models, particularly those equipped with power mirrors and mirror position feedback systems.

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