AutoCodesGeneric – B0997:39

B0997:39 Code - Auxiliary Electronic Control Unit Performance Internal Electronic Failure

Quick Answer

The Info Display Module monitors itself for internal failures and reports its condition to the Human Machine Interface Control Module when requested. Common causes include Faulty Info Display Module (Radio Controls) (Radio Assembly), Info Display Module harness is open or shorted, Info Display 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
B0997:39 indicates Auxiliary Electronic Control Unit Performance Internal Electronic Failure.
Common causes
Common causes include Faulty Info Display Module (Radio Controls) (Radio Assembly), Info Display Module harness is open or shorted, Info Display 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 174
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 18, 2024
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Code B0997:39 Description

The Info Display Module monitors itself for internal failures and reports its condition to the Human Machine Interface Control Module when requested. The info display also reports electronic identification information when requested. The Diagnostic Trouble Code (DTC) will be set if the Info Display Module reports an internal malfunction.
*The Info Display Module and radio controls can be separate components from the radio or combined with the radio into one assembly.
OBDII Code B0997:39 - Auxiliary Electronic Control Unit Performance Internal Electronic Failure - AutoCodes.com
B0997:39 Code - Auxiliary Electronic Control Unit Performance Internal Electronic Failure

What are the Possible Causes of the DTC B0997:39?

  • Faulty Info Display Module (Radio Controls) (Radio Assembly)
  • Info Display Module harness is open or shorted
  • Info Display Module circuit poor electrical connection

How to Fix the DTC B0997:39?

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 B0997:39 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 B0997:39 Code

1. What does the OBDII code B0997:39 mean?

The code B0997:39 indicates an internal electronic failure related to the Auxiliary Electronic Control Unit (ECU), affecting its performance.

2. What are the common symptoms of the B0997:39 code?

Symptoms may include malfunctioning auxiliary systems, dashboard warning lights, or intermittent electronic feature failures.

3. What causes the B0997:39 code to appear?

This code is typically caused by internal faults within the Auxiliary ECU, such as damaged circuitry, software corruption, or electrical issues like voltage irregularities.

4. Can a dead battery trigger the B0997:39 code?

Yes, a low or dead battery can cause voltage fluctuations that may lead to internal electronic failures in the Auxiliary ECU.

5. How can I diagnose the B0997:39 code?

Use an OBDII scanner to confirm the code, inspect the Auxiliary ECU for visible damage, check wiring and connectors, and test for proper voltage supply.

6. Can the B0997:39 code be fixed without replacing the Auxiliary ECU?

In some cases, the issue may be resolved by repairing damaged wiring, clearing the code, or updating the ECU’s software. However, replacement may be necessary for internal failures.

7. How much does it cost to repair the B0997:39 code?

Repair costs vary but can range from $100 for minor wiring fixes to over $1,000 if the Auxiliary ECU needs replacement.

8. Is it safe to drive with the B0997:39 code?

It depends on the affected auxiliary systems. While it might not directly impact drivability, neglecting the issue can lead to further electrical problems.

9. Can a software update fix the B0997:39 code?

If the issue is due to software corruption, a firmware update may resolve the problem without needing hardware replacement.

10. What tools are needed to troubleshoot the B0997:39 code?

You’ll need an OBDII scanner, a multimeter to check electrical connections, and possibly manufacturer-specific tools for advanced diagnostics.

Discuss the causes and fixes for B0997:39 OBDII Code

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