AutoCodes – GMC – U0132 GMC

U0132 GMC Code - Lost Communication With Suspension Control Module

Quick Answer

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Suspension Control Module, Suspension Control Module harness is open or shorted, Suspension Control Module 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: U0132 GMC indicates Lost Communication With Suspension Control Module.
Common causes: Common causes include Faulty Suspension Control Module, Suspension Control Module harness is open or shorted, Suspension Control Module 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 932

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 Apr 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0132 GMC Description

Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. The modules have prerecorded information about what messages are needed to be exchanged on the serial data circuits, for each virtual network. The messages are supervised and also, some periodic messages are used by the receiver module as an availability indication of the transmitter module. The supervision time-out period is 250 ms. Each message contains the identification number of the transmitter module. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Suspension Control Module has not been received.

OBDII Code U0132 GMC - Lost Communication With Suspension Control Module - AutoCodes.com — U0132 GMC Code - Lost Communication With Suspension Control Module

What does this mean?

What are the Possible Causes of the DTC U0132 GMC?

Faulty Suspension Control Module
Suspension Control Module harness is open or shorted
Suspension Control Module circuit poor electrical connection

How to Fix the DTC U0132 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 U0132 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 U0132 GMC Code

1. What are the common symptoms of OBDII code U0132 GMC "Lost Communication With Suspension Control Module"?

- Common symptoms include issues with the suspension system such as a stiff or bumpy ride, uneven ride height, and warning lights on the dashboard.

2. What can cause the OBDII code U0132 GMC to appear?

- The code U0132 typically appears when there is a communication failure between the vehicle's main computer and the suspension control module, often due to wiring issues, a faulty module, or a blown fuse.

3. How can I diagnose the cause of the U0132 code in my GMC vehicle?

- A thorough diagnostic process involves checking the wiring connections between the main computer and the suspension control module, testing the module for functionality, and inspecting related fuses for any signs of damage.

4. Is it safe to drive my GMC vehicle with the U0132 code present?

- It is not recommended to drive the vehicle with the U0132 code, as it can affect the proper functioning of the suspension system, potentially compromising vehicle handling and safety.

5. Can I repair the U0132 code issue in my GMC vehicle myself?

- Repairing the U0132 code may require advanced diagnostic tools and knowledge of automotive electrical systems. It is recommended to consult a professional mechanic or dealership for accurate diagnosis and repair.

6. How much does it typically cost to repair the U0132 code in a GMC vehicle?

- The cost of repairing the U0132 code can vary depending on the underlying cause of the issue. Costs may include labor charges for diagnosis and repair, as well as the price of any replacement parts needed.

7. Will resetting the OBDII code U0132 in my GMC vehicle make the problem go away?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the communication failure between the main computer and the suspension control module.

8. Can extreme weather conditions affect the appearance of the U0132 code in a GMC vehicle?

- Extreme weather conditions such as severe cold or heat can potentially impact the electrical connections and components related to the suspension control module, leading to the U0132 code.

9. Are there any preventive measures I can take to avoid the U0132 code in my GMC vehicle?

- Regular maintenance checks, including inspecting wiring harnesses for wear and tear, can help prevent communication issues that may trigger the U0132 code in GMC vehicles.

10. How long does it typically take to diagnose and repair the U0132 code issue in a GMC vehicle?

- The diagnostic and repair process for the U0132 code can take a few hours to a day, depending on the complexity of the issue and the availability of parts needed for repair.