Engine-Codes.com
Engine-Codes – Generic – B2917

B2917 Code - Auxiliary Mode Door Motor Circuits Shorted

Quick Answer

The B2917 diagnostic trouble code (DTC) indicates that there is a short circuit in the auxiliary mode door motor circuits of the vehicle. Common causes include Wiring harness damage or corrosion, Faulty auxiliary mode door motor, Electrical short circuit. 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
B2917 indicates Auxiliary Mode Door Motor Circuits Shorted.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty auxiliary mode door motor, Electrical short circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B2917 Description

The B2917 diagnostic trouble code (DTC) indicates that there is a short circuit in the auxiliary mode door motor circuits of the vehicle. The auxiliary mode door motor is responsible for controlling the airflow direction within the HVAC (heating, ventilation, and air conditioning) system. When this circuit is shorted, it can lead to issues with the proper functioning of the HVAC system, affecting the distribution of air to different vents in the vehicle.

OBDII Code B2917 - Auxiliary Mode Door Motor Circuits Shorted
B2917 Code - Auxiliary Mode Door Motor Circuits Shorted

Common Causes of B2917

  1. Wiring harness damage or corrosion
  2. Faulty auxiliary mode door motor
  3. Electrical short circuit
  4. Poor electrical connections
  5. Defective HVAC control module

Symptoms of B2917

  1. Inconsistent airflow distribution from different vents
  2. Inability to control the direction of airflow
  3. Unusual noises coming from the HVAC system
  4. HVAC system not responding to temperature adjustments
  5. Reduced heating or cooling effectiveness

How to Fix B2917

  1. Begin by conducting a thorough inspection of the auxiliary mode door motor circuits to identify the location of the short circuit.
  2. Check the wiring harness for any signs of damage, corrosion, or loose connections. Repair or replace any damaged wiring as necessary.
  3. Test the auxiliary mode door motor for proper functionality. If the motor is faulty, replace it with a new one.
  4. Inspect the HVAC control module for any issues that may be contributing to the short circuit. Repair or replace the control module if needed.
  5. Clear the DTC from the vehicle's computer system using a diagnostic scan tool to reset the HVAC system.

Cost to Fix B2917

The typical repair costs for addressing a B2917 code related to a shorted auxiliary mode door motor circuit can range from $200 to $500, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate.

Need more information about the B2917 code?

Need more information on how to fix the B2917 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2917 code diagnosed by a professional: Find a repair shop in your area

Code B2917 Information for Specific Makes

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 B2917 Code

1. What are the common symptoms of OBDII code B2917?

The common symptoms of OBDII code B2917 include issues with the auxiliary mode door motor in the HVAC system, such as the mode door getting stuck in one position or not moving at all.

2. What causes the OBDII code B2917 to be triggered?

The OBDII code B2917 is triggered when the ECM detects a short circuit in the auxiliary mode door motor circuits, indicating a problem with the motor or its wiring.

3. How can I diagnose the OBDII code B2917?

Diagnosing the OBDII code B2917 involves using a scan tool to retrieve the code, inspecting the auxiliary mode door motor and its wiring for any visible damage, and performing electrical tests to identify the short circuit.

4. Can I continue driving with the OBDII code B2917?

While it may be possible to continue driving with the OBDII code B2917, it is not recommended as it can lead to issues with the HVAC system's functionality and affect the comfort inside the vehicle.

5. How can I repair the OBDII code B2917?

To repair the OBDII code B2917, you may need to replace the auxiliary mode door motor, repair any damaged wiring, and clear the code using a scan tool. It is recommended to follow the manufacturer's repair procedures.

6. Are there any DIY tips for fixing the OBDII code B2917?

While some DIY enthusiasts may attempt to diagnose and repair the OBDII code B2917 on their own, it is recommended to have the issue addressed by a qualified mechanic to ensure proper diagnosis and repair.

7. Is the OBDII code B2917 a common issue in certain vehicle models?

The OBDII code B2917 related to the auxiliary mode door motor circuits being shorted is more commonly seen in vehicles with complex HVAC systems that rely on various motors for controlling airflow and temperature distribution.

8. Can weather conditions impact the occurrence of OBDII code B2917?

Extreme weather conditions, such as temperature fluctuations or humidity, can potentially impact the auxiliary mode door motor circuits and contribute to the triggering of the OBDII code B2917.

9. What is the typical cost to repair the OBDII code B2917?

The cost to repair the OBDII code B2917 can vary depending on the vehicle make and model, the extent of the damage, and the labor rates of the repair shop. It is advisable to obtain quotes from multiple sources.

10. How can I prevent the OBDII code B2917 from occurring in the future?

Regular maintenance of the HVAC system, including checking for any signs of wear or damage in the mode door motor circuits, can help prevent the occurrence of the OBDII code B2917.

Discuss the causes and fixes for B2917 OBDII Code

Submit a New Comment

Code B2917 comments

No comments found for this page.