AutoCodes – GMC – U0237 GMC

U0237 GMC Code - Lost Communication With Multimedia Player Interface 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 Multimedia Player Interface Module, Multimedia Player Interface Module harness is open or shorted, Multimedia Player Interface 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: U0237 GMC indicates Lost Communication With Multimedia Player Interface Module.
Common causes: Common causes include Faulty Multimedia Player Interface Module, Multimedia Player Interface Module harness is open or shorted, Multimedia Player Interface 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 792

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 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0237 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 Multimedia Player Interface Module has not been received.

OBDII Code U0237 GMC - Lost Communication With Multimedia Player Interface Module - AutoCodes.com — U0237 GMC Code - Lost Communication With Multimedia Player Interface Module

What does this mean?

What are the Possible Causes of the DTC U0237 GMC?

Faulty Multimedia Player Interface Module
Multimedia Player Interface Module harness is open or shorted
Multimedia Player Interface Module circuit poor electrical connection

How to Fix the DTC U0237 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 U0237 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 U0237 GMC Code

1. What are the common symptoms of OBDII code U0237 in a GMC related to Lost Communication With Multimedia Player Interface Module?

- Common symptoms include the multimedia player not working, no sound from speakers, and issues with the radio or touchscreen display.

2. What are the possible causes of OBDII code U0237 indicating Lost Communication With Multimedia Player Interface Module in a GMC?

- Possible causes include a faulty multimedia player interface module, damaged wiring or connectors, software glitches, or a communication network issue.

3. How can I diagnose the cause of OBDII code U0237 in my GMC for Lost Communication With Multimedia Player Interface Module?

- Diagnose by checking for loose or damaged wiring, testing the multimedia player interface module, scanning for other related trouble codes, and ensuring the network communication is functioning properly.

4. Can I still drive my GMC with OBDII code U0237 indicating Lost Communication With Multimedia Player Interface Module?

- It is generally safe to drive your GMC with this code, but it is recommended to address the issue promptly to avoid further complications or inconvenience.

5. How can I repair OBDII code U0237 related to Lost Communication With Multimedia Player Interface Module in my GMC?

- Repair options include replacing the multimedia player interface module, repairing any damaged wiring or connectors, updating software if necessary, and ensuring proper communication network function.

6. Will resetting the OBDII code U0237 in my GMC fix the issue of Lost Communication With Multimedia Player Interface Module?

- Resetting the code may temporarily clear the warning, but it will not fix the underlying problem causing the lost communication with the multimedia player interface module.

7. Are there any common mistakes to avoid when dealing with OBDII code U0237 GMC for Lost Communication With Multimedia Player Interface Module?

- Common mistakes to avoid include overlooking wiring issues, skipping proper diagnostic procedures, and neglecting to check for related trouble codes or network communication problems.

8. Can extreme temperatures or environmental factors contribute to triggering OBDII code U0237 in a GMC for Lost Communication With Multimedia Player Interface Module?

- Yes, extreme temperatures, moisture, or other environmental factors can sometimes lead to communication issues with the multimedia player interface module, triggering this code.

9. What should I do if OBDII code U0237 keeps coming back in my GMC after repair attempts for Lost Communication With Multimedia Player Interface Module?

- If the code keeps returning, it indicates a persistent issue. Recheck all repairs, consider consulting a professional technician, and ensure all components are functioning correctly.

10. Is it possible to prevent OBDII code U0237 related to Lost Communication With Multimedia Player Interface Module in my GMC?

- While some factors may be beyond your control, regular maintenance, timely repairs, and addressing any communication or wiring issues promptly can help prevent this code from recurring.