AutoCodes – Generic – B1747

B1747 Code - Mirror Passenger Horizontal Switch Circuit Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Mirror Passenger Horizontal Switch. Common causes include Faulty Mirror Passenger Horizontal Switch, Mirror Passenger Horizontal Switch harness is open or shorted, Mirror Passenger Horizontal Switch 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
B1747 indicates Mirror Passenger Horizontal Switch Circuit Short To Battery.
Common causes
Common causes include Faulty Mirror Passenger Horizontal Switch, Mirror Passenger Horizontal Switch harness is open or shorted, Mirror Passenger Horizontal Switch 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 3,638
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 23, 2019
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Code B1747 Description

The Body Control Module (BCM) monitors the Mirror Passenger Horizontal Switch. The BCM sets the OBDII code when the Mirror Passenger Horizontal Switch is not to factory specifications.
OBDII Code B1747 - Mirror Passenger Horizontal Switch Circuit Short To Battery - AutoCodes.com
B1747 Code - Mirror Passenger Horizontal Switch Circuit Short To Battery

What are the Possible Causes of the DTC B1747?

  • Faulty Mirror Passenger Horizontal Switch
  • Mirror Passenger Horizontal Switch harness is open or shorted
  • Mirror Passenger Horizontal Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1747?

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 B1747 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 B1747 code?

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Need Help with the Code?

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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 B1747 Code

What does OBDII code B1747 indicate?

OBDII code B1747 indicates a short circuit in the passenger mirror horizontal switch circuit to battery, meaning there is an electrical fault affecting the switch's operation.

What are common symptoms of the B1747 code?

Common symptoms include the passenger side mirror not adjusting properly, the switch feeling unusually hot, or the mirror being stuck in one position.

What can cause the B1747 code to trigger?

Causes can include a faulty mirror switch, damaged wiring or connectors, or a short circuit in the mirror adjustment circuit.

How can I diagnose the B1747 code?

To diagnose B1747, visually inspect the wiring and connectors for damage, test the mirror switch for proper function, and use a multimeter to check for continuity and shorts in the circuit.

What are some common repair solutions for the B1747 code?

Common repairs include replacing the faulty passenger mirror switch, repairing or replacing damaged wiring, and ensuring all connections are secure and free from corrosion.

Can a dead battery affect the B1747 code?

Yes, a dead or weak battery can cause electrical issues that may trigger the B1747 code, as it can lead to insufficient power reaching the mirror switch.

Is it safe to drive with the B1747 code?

While it may be safe to drive, it is advisable to address the B1747 code promptly to avoid potential electrical issues or further damage to the vehicle's electrical system.

How can I clear the B1747 code after repairs?

You can clear the B1747 code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes, but ensure the issue is resolved before doing so.

Will the B1747 code always indicate a serious problem?

Not necessarily; while it indicates an electrical issue, it may be as simple as a faulty switch or loose connection rather than a serious problem.

Discuss the causes and fixes for B1747 OBDII Code

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