AutoCodes – GMC – B3132 GMC

B3132 GMC Code - All Door Unlock Circuit Low

Quick Answer

The outputs to the door lock actuators are controlled by the Body Control Module (BCM). Common causes include Faulty Inoperative Door Lock Actuator, Inoperative Door Lock Actuator harness is open or shorted, Inoperative Door Lock Actuator 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: B3132 GMC indicates All Door Unlock Circuit Low.
Common causes: Common causes include Faulty Inoperative Door Lock Actuator, Inoperative Door Lock Actuator harness is open or shorted, Inoperative Door Lock Actuator 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 503

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 Mar 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B3132 GMC Description

The outputs to the door lock actuators are controlled by the Body Control Module (BCM). When the BCM receives a lock input from a door lock switch, or a keyless entry transmitter, it applies battery positive voltage to the door lock actuator lock control circuit, a ground to the door lock actuator unlock control, and the driver door lock actuator unlock control circuits. When the BCM receives an unlock input from a door lock switch, it applies battery positive voltage to the door lock actuator unlock control, the driver door lock actuator unlock control circuits, and a ground to the door lock actuator lock control circuit. When the BCM receives a single Unlock input from a keyless entry transmitter, it applies battery positive voltage to the driver door lock actuator unlock control circuit and a ground to the door lock actuator lock control circuit to unlock the driver door. A second Unlock input from the transmitter applies battery positive voltage to the door lock actuator unlock control circuit, and a ground to the door lock actuator lock control circuit to unlock the passenger door or doors.

OBDII Code B3132 GMC - All Door Unlock Circuit Low - AutoCodes.com — B3132 GMC Code - All Door Unlock Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3132 GMC?

Faulty Inoperative Door Lock Actuator
Inoperative Door Lock Actuator harness is open or shorted
Inoperative Door Lock Actuator circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B3132 GMC?

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 B3132 GMC 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.

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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 B3132 GMC Code

1. What are the common symptoms of OBDII code B3132 GMC (All Door Unlock Circuit Low)?

- The common symptoms of this code may include difficulty unlocking all doors using the key fob or interior door lock switch.

2. What are some possible causes of OBDII code B3132 GMC?

- Possible causes of this code include a faulty door lock actuator, damaged wiring or connectors in the door unlock circuit, or a malfunctioning body control module (BCM).

3. How can I diagnose the issue related to OBDII code B3132 GMC?

- To diagnose the issue, you can start by checking the wiring and connectors in the door unlock circuit for any damage or corrosion. Testing the door lock actuator and inspecting the BCM for faults can also help pinpoint the problem.

4. What are the repair options for OBDII code B3132 GMC?

- Repair options may include replacing a faulty door lock actuator, repairing damaged wiring or connectors, or reprogramming the BCM if necessary.

5. Can OBDII code B3132 GMC cause any other electrical issues in the vehicle?

- While this code specifically relates to the all door unlock circuit, it can potentially cause issues with other electrical components controlled by the BCM if left unresolved.

6. Is it safe to continue driving with OBDII code B3132 GMC present?

- It is generally safe to continue driving with this code, but it is recommended to address the issue promptly to ensure proper functioning of the door lock system.

7. Can weather conditions affect the occurrence of OBDII code B3132 GMC?

- Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate issues related to this code by causing additional stress on the door lock components and wiring.

8. How long does it typically take to repair OBDII code B3132 GMC?

- The repair time can vary depending on the specific cause of the code and the complexity of the repair needed. It is advisable to consult a professional technician for an accurate assessment.

9. Are there any preventive measures to avoid OBDII code B3132 GMC in the future?

- Regular maintenance of the door lock system, including checking for any signs of wear or damage, can help prevent issues that may trigger this code in the future.

10. Can I reset OBDII code B3132 GMC on my own, or do I need a professional to clear it?

- You can attempt to clear the code using an OBDII scanner, but if the underlying issue is not addressed, the code is likely to reappear. Consulting a professional for proper diagnosis and repair is recommended.