B2917 Code - Auxiliary Mode Door Motor Circuits Shorted
Quick Answer
Under normal operation, to rotate the auxiliary temperature blend door actuator clockwise, the Smart Junction Box (SJB) supplies voltage to the auxiliary temperature blend door actuator motors through the circuit and supplies ground through the circuit. Common causes include Faulty Auxiliary Temperature Mode Door Actuator, Auxiliary Temperature Mode Door Actuator harness is open or shorted, Auxiliary Temperature Mode Door Actuator 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
- B2917 indicates Auxiliary Mode Door Motor Circuits Shorted.
- Common causes
- Common causes include Faulty Auxiliary Temperature Mode Door Actuator, Auxiliary Temperature Mode Door Actuator harness is open or shorted, Auxiliary Temperature Mode Door Actuator 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.
Code B2917 Description
The auxiliary temperature blend door actuator feedback resistor is supplied a ground from the SJB through the circuit and a 5-volt reference voltage on a circuit. The SJB reads the voltage on the auxiliary temperature blend door actuator feedback circuit to determine the auxiliary temperature blend door actuator position by the position of the actuator feedback resistor wiper arm.
What are the Possible Causes of the DTC B2917?
- Faulty Auxiliary Temperature Mode Door Actuator
- Auxiliary Temperature Mode Door Actuator harness is open or shorted
- Auxiliary Temperature Mode Door Actuator circuit poor electrical connection
- Faulty Smart Junction Box (SJB)
How to Fix the DTC B2917?
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 B2917 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.
Need more information about the B2917 code?
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Get the B2917 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B2917 Ford — Auxiliary Mode Door Motor Circuits Shorted
- B2917 Lincoln — Auxiliary Mode Door Motor Circuits Shorted
- B2917 Mercury — Auxiliary Mode Door Motor Circuits Shorted
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.
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