[SOLVED] B1747 Code: Mirror Switch Short To Battery Fix

OBD code B1747 indicates an issue with the Mirror Passenger Horizontal Switch in the Body Control Module (BCM) system.

Symptoms include the Engine Light being ON.

The cause could be a faulty switch, open/shorted harness, or poor electrical connection.

This is a moderate issue.

To fix, inspect the switch, wiring harness, and connectors for any damage or corrosion.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

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The vehicle displays an airbag warning light on the dashboard with fault code B1747 stored.

  • Symptoms: Airbag warning light illuminated.
  • Chime sound when starting the vehicle.
  • Airbag system may not deploy in a collision.

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Code B1747 typically indicates a problem with the driver’s seatbelt pretensioner circuit.

  • B1747 can be caused by a faulty Mirror Passenger Horizontal Switch.
  • A Mirror Passenger Horizontal Switch harness that is open or shorted.
  • A Mirror Passenger Horizontal Switch circuit with poor electrical connection.
  • A faulty Body Control Module (BCM).

To resolve fault code B1747, inspect and repair the driver’s seatbelt pretensioner circuit as needed.

  • To fix OBDII code B1747, first, 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.
  • Next, check the seat weight sensor for any faults or malfunctions.
  • If the sensor is faulty, replace it with a new one.
  • Finally, clear the fault codes using a scan tool and perform a test drive to ensure the issue has been resolved.

Diagnosing and repairing fault code B1747 typically involves inspecting and possibly replacing the driver’s seatbelt pretensioner.

The cost to diagnose and fix OBD code B1747 typically ranges from $75 to $150, based on an estimated repair time of 1. 0 hour.

Factors like shop rates and complexity of the repair can influence the final cost.

B1747 code indicates a driver’s airbag circuit short to ground.

OBD code B1747 means the driver’s seatbelt pretensioner circuit has low voltage.

This code is triggered by the Restraints Control Module (RCM) when it detects a voltage below the threshold in the driver’s seatbelt pretensioner circuit.

The system involved is the driver’s seatbelt pretensioner circuit, which is responsible for tightening the seatbelt in the event of a collision to secure the occupant in place.

Code B1747 indicates a driver’s airbag circuit resistance is too high.

OBDII code B1747 indicates a malfunction in the TCM power supply circuit.

To diagnose, use a voltmeter to check TCM power and ground connections for proper voltage levels.

Utilize a scan tool to confirm TCM communication over the CAN network.

Visually inspect wiring harnesses and connectors for any damage, and ensure connector pins are not broken, bent, or corroded.

If all checks out, consider reprogramming the TCM.

1. What does OBD code B1747 indicate in a vehicle?

OBD code B1747 indicates an issue with the Mirror Passenger Horizontal Switch. Check switch, wiring, and connectors for faults. Inspect BCM for problems.

2. What are the common symptoms associated with OBD code B1747?

Common symptoms of OBD code B1747 include Engine Light ON, caused by issues like faulty mirror passenger horizontal switch or poor electrical connections. Inspect and repair related components and wiring.

3. How can I diagnose and repair OBD code B1747 in my vehicle?

Diagnose OBD code B1747 by checking Mirror Passenger Horizontal Switch and BCM. Inspect wiring for damage or poor connections. Repair as needed.

 b1747 error fault code explained

If your airbag light is on and you see OBDII code b1747, it may indicate a problem with the driver’s airbag circuit.

This could be caused by a faulty driver’s airbag module, damaged wiring, or a poor connection at the airbag module or clock spring.

To address OBDII code b1747, check the wiring harness and connectors leading to the driver’s airbag module.

Inspect for any signs of damage, corrosion, or loose connections.

Test the driver’s airbag module and clock spring for proper functionality and replace any faulty components as needed.

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