AutoCodes – Generic – B1539

B1539 Code - Mirror Driver Switch Assembly Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Mirror Driver Switch Assembly. Common causes include Faulty Mirror Driver Switch Assembly, Mirror Driver Switch Assembly harness is open or shorted, Mirror Driver Switch Assembly 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: B1539 indicates Mirror Driver Switch Assembly Circuit Failure.
Common causes: Common causes include Faulty Mirror Driver Switch Assembly, Mirror Driver Switch Assembly harness is open or shorted, Mirror Driver Switch Assembly 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.

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Code Popularity 4,429

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1539 Description

The Body Control Module (BCM) monitors the Mirror Driver Switch Assembly. The BCM sets the OBDII code when the Mirror Driver Switch Assembly is not to factory specifications.

OBDII Code B1539 - Mirror Driver Switch Assembly Circuit Failure - AutoCodes.com — B1539 Code - Mirror Driver Switch Assembly Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1539?

Faulty Mirror Driver Switch Assembly
Mirror Driver Switch Assembly harness is open or shorted
Mirror Driver Switch Assembly circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1539?

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 B1539 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 B1539 code?

Need more information on how to fix the B1539 code? Get Access to Factory Service Manuals

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 B1539 Code

1. What are the common symptoms of OBDII code B1539 (Mirror Driver Switch Assembly Circuit Failure)?

- Common symptoms include malfunctioning power mirrors, unresponsive mirror adjustments, and illuminated mirror control switch lights.

2. What are the possible causes of OBDII code B1539?

- The code B1539 can be caused by a faulty mirror control switch assembly, damaged wiring or connectors, or a malfunctioning mirror control module.

3. How can I diagnose the cause of OBDII code B1539?

- Diagnosis typically involves checking the mirror control switch for proper functionality, inspecting the wiring and connectors for damage, and using a scan tool to assess the mirror control module.

4. Can I still drive my vehicle with OBDII code B1539?

- While it may be safe to drive with this code, it is recommended to address the issue promptly to avoid potential safety hazards and inconvenience.

5. How can I repair OBDII code B1539?

- Repairs may involve replacing the mirror control switch assembly, repairing damaged wiring or connectors, or reprogramming the mirror control module depending on the specific cause.

6. Are there any DIY tips for fixing OBDII code B1539?

- DIY enthusiasts with the necessary tools and knowledge may attempt to replace the mirror control switch assembly or check for visible wiring issues before seeking professional help.

7. Can a professional mechanic help me reset OBDII code B1539?

- Yes, a qualified mechanic can diagnose the issue, perform the necessary repairs, and reset the OBDII code using a diagnostic scan tool.

8. Are there any recalls related to OBDII code B1539?

- It is advisable to check with the vehicle manufacturer or authorized service centers for any related recalls or service bulletins concerning this specific OBDII code.

9. What should I do if OBDII code B1539 keeps recurring after repairs?

- If the code persists after repairs, it is recommended to recheck the components, wiring, and connections for any missed issues or seek assistance from a professional technician.

10. Is it possible for OBDII code B1539 to cause other electrical problems in the vehicle?

- While the code itself pertains to mirror switch assembly circuit failure, unresolved issues related to this code may potentially lead to other electrical malfunctions in the vehicle.