AutoCodes – Buick – U2132 Buick

U2132 Buick Code - Lost Communication With Passenger Door Module

Quick Answer

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Passenger Door Module (PDM), Passenger Door Module harness is open or shorted, Passenger Door 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
U2132 Buick indicates Lost Communication With Passenger Door Module.
Common causes
Common causes include Faulty Passenger Door Module (PDM), Passenger Door Module harness is open or shorted, Passenger Door 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 516
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 16, 2020
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Code U2132 Buick Description

Devices connected to the serial data circuits monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the devices. The devices 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 device as an availability indication of the transmitter device. Each message contains the identification number of the transmitter device. A loss of serial data communications Diagnostic Trouble Code (DTC) does not represent a failure of the devices that contain the stored code. The DTC will set when a supervised periodic message that includes the transmitter device availability has not been received.
OBDII Code U2132 Buick - Lost Communication With Passenger Door Module - AutoCodes.com
U2132 Buick Code - Lost Communication With Passenger Door Module

What are the Possible Causes of the DTC U2132 Buick?

  • Faulty Passenger Door Module (PDM)
  • Passenger Door Module harness is open or shorted
  • Passenger Door Module circuit poor electrical connection

How to Fix the DTC U2132 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 U2132 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 U2132 Buick Code

1. What does the OBDII code U2132 mean on a Buick?

The U2132 code indicates a loss of communication with the Passenger Door Module (PDM), meaning the module is not responding to the vehicle's communication network.

2. What are the common symptoms of code U2132 in a Buick?

Symptoms may include inoperative passenger-side power windows, locks, or mirrors, and potentially warning lights on the dashboard.

3. What causes the U2132 code in a Buick?

The code can be caused by a faulty Passenger Door Module, damaged wiring or connectors, or a problem with the communication network.

4. Can a weak battery cause the U2132 code?

Yes, a weak or failing battery can lead to voltage issues that disrupt communication with the Passenger Door Module.

5. How do you diagnose the U2132 code?

Diagnosis involves checking the PDM's wiring and connectors, testing the module itself, and verifying communication signals using a scan tool.

6. Can a software update fix the U2132 code?

In some cases, a reprogramming or software update for the vehicle's modules may resolve communication issues.

7. Is the Passenger Door Module always the problem when U2132 is present?

No, the issue could also stem from wiring, network faults, or other modules affecting communication.

8. Can I still drive my Buick with the U2132 code?

Yes, but features like passenger-side window and lock controls may not function properly, which could be inconvenient or unsafe.

9. How much does it cost to fix the U2132 code?

Repair costs depend on the root cause but typically range from $100 to $500 for diagnostics, wiring repairs, or module replacement.

10. What should I check first to fix the U2132 code?

Start by inspecting the wiring and connectors at the Passenger Door Module for damage or corrosion, as these are common culprits.

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