AutoCodes – Buick – U0132 Buick

U0132 Buick 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 Buick 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 614

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

What does this mean?

What are the Possible Causes of the DTC U0132 Buick?

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 Buick?

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 Buick 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 Buick Code

What does the OBDII code U0132 mean for my Buick?

The U0132 code indicates the vehicle has lost communication with the Suspension Control Module (SCM), which may affect suspension performance and handling.

What are common symptoms of the U0132 code?

Symptoms include a malfunctioning or unresponsive suspension system, a warning light on the dashboard, and potentially a rough or uneven ride.

What causes the U0132 code in a Buick?

Common causes include damaged wiring, faulty connectors, a defective Suspension Control Module, or issues with the vehicle's CAN bus communication network.

Can I still drive my Buick with the U0132 code?

While it may be drivable, the suspension system may not function properly, leading to reduced comfort and handling. It's best to address the issue promptly.

How is the U0132 code diagnosed?

Technicians use a scan tool to check for communication with the SCM, inspect wiring and connectors, and test the CAN bus system for faults.

Can I fix the U0132 code myself?

If you're experienced with automotive repairs, you can check for loose or damaged wiring and connectors. Otherwise, professional diagnosis is recommended.

How much does it cost to repair the U0132 code on a Buick?

Repair costs vary depending on the issue. Replacing wiring or connectors may cost $50-$200, while a new Suspension Control Module can range from $500-$1,000.

Does the U0132 code require replacing the Suspension Control Module?

Not always. The issue may be related to wiring, connectors, or CAN bus communication. The module is replaced only if it's confirmed to be faulty.

What tools are needed to diagnose the U0132 code?

You'll need an OBDII scan tool capable of reading manufacturer-specific codes and monitoring CAN bus communication.

Can a software update fix the U0132 code?

In some cases, a software update for the SCM or related modules may resolve communication issues, but this depends on the vehicle's specific circumstances.