AutoCodes – Pontiac – U1097 Pontiac

U1097 Pontiac Code - Loss Of Driver Information Center Communications

Quick Answer

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Common causes include Faulty Driver Information Center (DIC), Driver Information Center harness is open or shorted, Driver Information Center 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: U1097 Pontiac indicates Loss Of Driver Information Center Communications.
Common causes: Common causes include Faulty Driver Information Center (DIC), Driver Information Center harness is open or shorted, Driver Information Center 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 572

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 U1097 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) U1097 is set.

OBDII Code U1097 Pontiac - Loss Of Driver Information Center Communications - AutoCodes.com — U1097 Pontiac Code - Loss Of Driver Information Center Communications

What does this mean?

What are the Possible Causes of the DTC U1097 Pontiac?

Faulty Driver Information Center (DIC)
Driver Information Center harness is open or shorted
Driver Information Center circuit poor electrical connection

How to Fix the DTC U1097 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 U1097 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 U1097 Pontiac Code

1. What does the OBDII code U1097 mean on a Pontiac?

U1097 indicates a loss of communication between the Driver Information Center (DIC) and other control modules in the vehicle.

2. What are common symptoms of the U1097 code in a Pontiac?

Symptoms may include the DIC not displaying information, warning lights on the dashboard, and loss of functionality for features controlled by the DIC.

3. What causes the U1097 code to appear?

Common causes include faulty wiring or connectors, a defective Driver Information Center, communication issues in the CAN (Controller Area Network) bus, or a failing control module.

4. How can I diagnose the U1097 code on my Pontiac?

Use an OBDII scanner to confirm the code, inspect wiring and connectors for damage, and check for proper communication signals in the CAN bus system.

5. Can a weak battery cause the U1097 code?

Yes, a weak or failing battery can cause communication issues between modules, potentially triggering the U1097 code.

6. Is the U1097 code specific to Pontiac vehicles?

No, U1097 is a generic communication code, but the exact meaning and affected systems can vary by manufacturer.

7. How do I fix the U1097 code on my Pontiac?

Repairs may involve fixing or replacing damaged wiring, reconnecting loose connectors, reprogramming or replacing a faulty control module, or addressing issues with the DIC.

8. Can I drive my Pontiac with the U1097 code active?

While the vehicle may still be drivable, the loss of communication with the DIC can affect safety systems and other features, so itâ€™s best to address the issue promptly.

9. Does the U1097 code require reprogramming a module to fix it?

In some cases, reprogramming or updating the software for the affected control module may be necessary to resolve the issue.

10. How much does it cost to fix the U1097 code in a Pontiac?

Repair costs depend on the specific cause but may range from $100 for wiring repairs to $500 or more if a control module or the DIC needs to be replaced.