AutoCodes – Cadillac – U2132 Cadillac

U2132 Cadillac 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 Cadillac 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 735

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 Jun 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U2132 Cadillac 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 Cadillac - Lost Communication With Passenger Door Module - AutoCodes.com — U2132 Cadillac Code - Lost Communication With Passenger Door Module

What does this mean?

What are the Possible Causes of the DTC U2132 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

1. What are the common symptoms of OBDII code U2132 in a Cadillac related to lost communication with the passenger door module?

- Common symptoms include non-functioning power windows or mirrors on the passenger side, interior lights not working, and the inability to lock/unlock the passenger door electronically.

2. What are some possible causes of the U2132 code indicating lost communication with the passenger door module in a Cadillac?

- Potential causes include a faulty passenger door module, damaged wiring or connectors in the door, a blown fuse, or a malfunctioning body control module.

3. How can I diagnose the U2132 trouble code in a Cadillac experiencing communication issues with the passenger door module?

- Diagnosis involves checking the wiring and connectors in the passenger door, inspecting the passenger door module for any visible damage, and using a diagnostic scanner to communicate with the affected module.

4. Are there any simple checks or repairs I can perform myself to address the U2132 code in my Cadillac?

- You can start by checking the fuse related to the passenger door module, ensuring all connectors are securely attached, and resetting the vehicle's computer by disconnecting the battery for a few minutes.

5. Is it safe to continue driving my Cadillac with the U2132 code indicating lost communication with the passenger door module?

- While the vehicle may still be operable, it's recommended to address the issue promptly to prevent further electrical malfunctions and ensure the safety and convenience of using the affected features.

6. How much does it typically cost to repair the U2132 code in a Cadillac caused by lost communication with the passenger door module?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor, excluding diagnostic fees.

7. Can the U2132 trouble code be intermittent, causing the communication with the passenger door module to come and go in a Cadillac?

- Yes, intermittent communication issues with the passenger door module can trigger the U2132 code, making the symptoms sporadic and potentially more challenging to diagnose.

8. Will resetting the U2132 trouble code in a Cadillac resolve the communication problem with the passenger door module permanently?

- Resetting the code may temporarily clear the warning, but if the underlying issue causing the lost communication persists, the code is likely to reappear until the problem is properly addressed.

9. Is it necessary to visit a dealership or automotive specialist to repair the U2132 code related to lost communication with the passenger door module in a Cadillac?

- While a dealership or specialist may have the expertise and specialized tools for complex repairs, a skilled mechanic familiar with Cadillac vehicles should be able to diagnose and fix the issue effectively.

10. Are there any recalls or technical service bulletins related to the U2132 code in Cadillac vehicles experiencing communication problems with the passenger door module?

- It's advisable to check with a Cadillac dealership or visit the National Highway Traffic Safety Administration (NHTSA) website for any relevant recalls or bulletins addressing the U2132 trouble code in specific Cadillac models.