AutoCodes – GMC – B153A GMC

B153A GMC Code - Liftgate Latch Switches Malfunction

Quick Answer

The unlatch, ratchet, pawl, and sector switches are part of the liftgate latch assembly and are used by the liftgate control module to determine the state of the latch during the process of cinching or unlatching. Common causes include Faulty Liftgate Latch Assembly, Liftgate Latch Assembly harness is open or shorted, Liftgate Latch 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: B153A GMC indicates Liftgate Latch Switches Malfunction.
Common causes: Common causes include Faulty Liftgate Latch Assembly, Liftgate Latch Assembly harness is open or shorted, Liftgate Latch 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 1,997

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 B153A GMC Description

The unlatch, ratchet, pawl, and sector switches are part of the liftgate latch assembly and are used by the liftgate control module to determine the state of the latch during the process of cinching or unlatching. The ratchet and pawl switches will be inactive when the primary and secondary latches are latched, and the sector switch will be active during the power cinch function. Each of the latch switch signal circuits are supplied signal through a resistor and monitored within the liftgate control module. The latch switches share a common low reference circuit from the liftgate control module and when the switch contacts close the signal circuit goes low and the liftgate control module determines the switch to be active.

OBDII Code B153A GMC - Liftgate Latch Switches Malfunction - AutoCodes.com — B153A GMC Code - Liftgate Latch Switches Malfunction

What does this mean?

What are the Possible Causes of the DTC B153A GMC?

Faulty Liftgate Latch Assembly
Liftgate Latch Assembly harness is open or shorted
Liftgate Latch Assembly circuit poor electrical connection
Faulty Liftgate Control Module

How to Fix the DTC B153A 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 B153A 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 B153A GMC Code

1. What are the common symptoms of OBDII code B153A GMC related to liftgate latch switches malfunction?

- Common symptoms include difficulty in opening or closing the liftgate, intermittent issues with the liftgate latch, and warning lights illuminated on the dashboard.

2. What can cause the OBDII code B153A GMC indicating liftgate latch switches malfunction?

- The code can be triggered by faulty liftgate latch switches, damaged wiring or connectors, or issues with the liftgate control module.

3. How can I diagnose the liftgate latch switches malfunction causing OBDII code B153A GMC?

- Diagnosis involves conducting a visual inspection of the latch switches and wiring, testing the switches for proper functionality, and using a diagnostic scanner to read the trouble codes.

4. Is it safe to continue driving with the OBDII code B153A GMC related to liftgate latch switches malfunction?

- While it may be possible to drive with this code, it is recommended to address the issue promptly to ensure the liftgate operates correctly and safely.

5. What are the repair options for fixing the liftgate latch switches malfunction triggering OBDII code B153A GMC?

- Repair options may include replacing the faulty liftgate latch switches, repairing damaged wiring or connectors, or reprogramming the liftgate control module.

6. Can I reset the OBDII code B153A GMC related to liftgate latch switches malfunction on my own?

- Yes, you can attempt to clear the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

7. Are there any DIY tips for troubleshooting the OBDII code B153A GMC associated with liftgate latch switches malfunction?

- DIY tips may include checking the liftgate latch switches for physical damage, ensuring proper wiring connections, and checking for any loose or corroded connectors.

8. How much does it typically cost to repair the liftgate latch switches malfunction causing OBDII code B153A GMC?

- Repair costs can vary depending on the extent of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.

9. Can extreme weather conditions affect the liftgate latch switches and trigger the OBDII code B153A GMC?

- Yes, extreme temperatures or moisture exposure can potentially impact the liftgate latch switches and contribute to the malfunction triggering the OBDII code.

10. Is it advisable to seek professional help for diagnosing and repairing the OBDII code B153A GMC related to liftgate latch switches malfunction?

- Yes, it is recommended to consult a qualified mechanic or dealership specializing in GMC vehicles for accurate diagnosis and proper repair of the liftgate latch switches malfunction.