AutoCodes – GMC – B3152 GMC

B3152 GMC Code - Left Front Lock Switch Circuit Low

Quick Answer

The switch that failed and generated the Diagnostic Trouble Code (DTC) is wired to either the Driver Door Switch Assembly (DDSA) or the Passenger Front Door Module (PDM). Common causes include Faulty Left Front Power Door Lock Switch, Left Front Power Door Lock Switch harness is open or shorted, Left Front Power Door Lock 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: B3152 GMC indicates Left Front Lock Switch Circuit Low.
Common causes: Common causes include Faulty Left Front Power Door Lock Switch, Left Front Power Door Lock Switch harness is open or shorted, Left Front Power Door Lock 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.

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Code Popularity 561

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 B3152 GMC Description

The switch that failed and generated the Diagnostic Trouble Code (DTC) is wired to either the Driver Door Switch Assembly (DDSA) or the Passenger Front Door Module (PDM). When a door lock switch is activated to the Lock or Unlock function, the DDSA or PDM receives the switch input and sends the information on, via the Serial Data Class 2 communications line, to the Rear Integration Module (RIM), which is the master of all lock operations. If the RIM determines that the message is a valid request and conditions are correct for a door lock function to occur, it sends its OK back to all the door modules to Lock or Unlock the doors. Each door module supplies power and ground to its associated lock actuator to Lock or Unlock the associated door.

OBDII Code B3152 GMC - Left Front Lock Switch Circuit Low - AutoCodes.com — B3152 GMC Code - Left Front Lock Switch Circuit Low

What does this mean?

What are the Possible Causes of the DTC B3152 GMC?

Faulty Left Front Power Door Lock Switch
Left Front Power Door Lock Switch harness is open or shorted
Left Front Power Door Lock Switch circuit poor electrical connection
Faulty Driver Door Switch Assembly (DDSA)

How to Fix the DTC B3152 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 B3152 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 B3152 GMC Code

1. What are the common symptoms of OBDII code B3152 GMC (Left Front Lock Switch Circuit Low)?

- The common symptoms include difficulty locking or unlocking the left front door, intermittent power door lock operation, and illumination of the door ajar warning light.

2. What are the possible causes of OBDII code B3152 GMC?

- The code B3152 GMC may be triggered by a faulty left front door lock switch, damaged wiring or connectors in the lock switch circuit, or a malfunctioning body control module (BCM).

3. How can I diagnose the cause of OBDII code B3152 GMC?

- To diagnose the issue, you can use a scan tool to check for the specific diagnostic trouble code, visually inspect the wiring and connectors in the left front lock switch circuit, and perform continuity and resistance tests on the switch itself.

4. Is it safe to continue driving with OBDII code B3152 GMC present?

- While the vehicle may still be operable with this code, it is advisable to address the issue promptly to prevent potential lock/unlock failures or other related electrical problems.

5. What are some repair tips for fixing OBDII code B3152 GMC?

- Repair tips may include replacing the left front door lock switch, repairing any damaged wiring or connectors, and resetting the BCM after the repair is completed.

6. Can a DIY enthusiast fix OBDII code B3152 GMC at home?

- Depending on the level of expertise, a DIY enthusiast may be able to troubleshoot and fix this code at home by following repair guides or consulting service manuals specific to their GMC model.

7. Does OBDII code B3152 GMC affect vehicle performance?

- This code is related to the left front door lock switch circuit and is unlikely to directly impact the overall performance of the vehicle. However, addressing the issue promptly is recommended to ensure proper door operation.

8. Can weather conditions cause OBDII code B3152 GMC to trigger?

- Extreme weather conditions, such as moisture or corrosion, can potentially contribute to the triggering of this code by affecting the electrical connections or components in the left front lock switch circuit.

9. How long does it typically take to repair OBDII code B3152 GMC?

- The repair time for this code can vary depending on the exact cause and complexity of the issue. Simple repairs like replacing a switch may take an hour or two, while more extensive wiring repairs could take longer.

10. Is it necessary to clear the OBDII code B3152 GMC after fixing the issue?

- Yes, it is recommended to clear the diagnostic trouble codes using a scan tool after completing the repair to reset the system and ensure the code does not reoccur.