AutoCodes – Pontiac – U1137 Pontiac

U1137 Pontiac Code - Lost Communications With Digital Radio Receiver

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Digital Radio Receiver (DRR), Digital Radio Receiver harness is open or shorted, Digital Radio Receiver 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: U1137 Pontiac indicates Lost Communications With Digital Radio Receiver.
Common causes: Common causes include Faulty Digital Radio Receiver (DRR), Digital Radio Receiver harness is open or shorted, Digital Radio Receiver 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 504

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 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1137 Pontiac Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the module records the identification number of the module which sent the message for the state of health monitoring/node alive messages. A critical operating parameter is one which, when not received, requires that the module use a default value for that parameter. Once an identification number is learned by a module, it will monitor for that module node alive message. Each module on the class 2 serial data circuit is required to send a Node Alive message every 2 seconds. When no message is detected from a learned identification number for 5 seconds, a Diagnostic Trouble Code (DTC) U1137 is set.

OBDII Code U1137 Pontiac - Lost Communications With Digital Radio Receiver - AutoCodes.com — U1137 Pontiac Code - Lost Communications With Digital Radio Receiver

What does this mean?

What are the Possible Causes of the DTC U1137 Pontiac?

Faulty Digital Radio Receiver (DRR)
Digital Radio Receiver harness is open or shorted
Digital Radio Receiver circuit poor electrical connection

How to Fix the DTC U1137 Pontiac?

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 U1137 Pontiac 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 U1137 Pontiac Code

1. What are common symptoms of OBDII code U1137 in a Pontiac related to the Digital Radio Receiver?

- Common symptoms include loss of radio functionality, poor audio quality, and issues with digital radio reception.

2. What are the possible causes of OBDII code U1137 indicating Lost Communications With Digital Radio Receiver in a Pontiac?

- Possible causes may include a faulty digital radio receiver, damaged wiring or connectors, software issues, or a malfunctioning communication module.

3. How can I diagnose the reason behind OBDII code U1137 in my Pontiac?

- Diagnose the code by checking the wiring and connectors related to the digital radio receiver, testing the receiver itself, and ensuring proper communication between modules.

4. Can a DIY enthusiast repair OBDII code U1137 in a Pontiac?

- Repairing this code may require technical expertise. DIY enthusiasts can start by checking the wiring connections and fuses but may need professional help for advanced diagnostics and repairs.

5. Is it safe to continue driving with OBDII code U1137 in a Pontiac?

- While the vehicle may still be operational with this code, it is advisable to address the issue promptly to restore full functionality and prevent potential complications.

6. What are some possible repair tips for resolving OBDII code U1137 in a Pontiac?

- Repair tips may include checking and repairing any damaged wiring, replacing the digital radio receiver if necessary, updating software, and ensuring proper communication between components.

7. Can a weak car battery cause OBDII code U1137 to trigger in a Pontiac?

- A weak car battery may affect the electrical system, potentially leading to communication issues and triggering code U1137. Ensure the battery is in good condition during diagnosis.

8. How much does it typically cost to repair OBDII code U1137 related to Lost Communications With Digital Radio Receiver in a Pontiac?

- Repair costs can vary depending on the underlying cause. Costs may include parts, labor, and diagnostic fees, ranging from a few hundred to over a thousand dollars.

9. Will resetting the OBDII system clear code U1137 in a Pontiac?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue persists, the code is likely to reappear. It's important to diagnose and address the root cause.

10. Can extreme weather conditions impact the occurrence of OBDII code U1137 in a Pontiac?

- Extreme weather conditions, such as temperature fluctuations or moisture, may affect the electrical components involved, potentially contributing to code U1137. Inspect and protect components accordingly.