B2958 Ford Code - Panel/Defrost Door Open Circuit Short/Failure
Quick Answer
Under normal operation, to rotate the mode door actuator clockwise, the Electric Manual Temperature Control (EMTC) module or Electronic Automatic Temperature Control (EATC) module supplies voltage to the Blend, Floor/Defrost and Panel mode door actuator motors through the door actuator feed B circuits, and supplies ground through the door actuator feed A circuits. Common causes include Faulty Panel/Defrost Door Actuator Motor, Panel/Defrost Door Actuator Motor harness is open or shorted, Panel/Defrost Door Actuator Motor 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
- B2958 Ford indicates Panel/Defrost Door Open Circuit Short/Failure.
- Common causes
- Common causes include Faulty Panel/Defrost Door Actuator Motor, Panel/Defrost Door Actuator Motor harness is open or shorted, Panel/Defrost Door Actuator Motor 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 B2958 Ford Description
The mode door actuator feedback resistors are supplied a ground from the EMTC module or EATC module by the mode door actuator return circuits and a 5-volt reference voltage on the mode door actuator reference circuits. The EMTC module or EATC module reads the voltage on the mode door actuator feedback circuits to determine the mode door actuator position by the position of the actuator feedback resistor wiper arm.
What are the Possible Causes of the DTC B2958 Ford?
- Faulty Panel/Defrost Door Actuator Motor
- Panel/Defrost Door Actuator Motor harness is open or shorted
- Panel/Defrost Door Actuator Motor circuit poor electrical connection
- Faulty Electric Manual Temperature Control (EMTC) Module or Electronic Automatic Temperature Control (EATC) Module
How to Fix the DTC B2958 Ford?
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 B2958 Ford 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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Frequently Asked Questions about B2958 Ford Code
1. What does the OBDII code B2958 mean for a Ford vehicle?
The B2958 code indicates a problem with the panel/defrost door circuit, specifically an open or short circuit failure, which impacts the HVAC system's ability to control airflow properly.
2. What are the common symptoms of the B2958 code?
Common symptoms include improper airflow direction from the vents, difficulty switching between defrost and panel modes, and unusual noises from the HVAC system.
3. What causes the B2958 code to appear?
The code is typically caused by a faulty panel/defrost door actuator, damaged wiring or connectors in the circuit, or a malfunctioning HVAC control module.
4. Can I still drive my Ford if the B2958 code is present?
Yes, you can usually drive the vehicle, but the HVAC system may not function properly, leading to reduced comfort or visibility issues if the defrost function is affected.
5. How can I diagnose the B2958 code?
Start by inspecting the panel/defrost door actuator, checking for damaged or disconnected wiring, and using a scan tool to monitor the actuator's operation.
6. How do I fix the B2958 code?
Repair options include replacing the faulty panel/defrost door actuator, repairing or replacing damaged wiring, or resetting or reprogramming the HVAC control module if necessary.
7. How much does it cost to fix the B2958 code?
Repairs typically cost between $100 and $300, depending on whether the actuator, wiring, or control module needs replacement.
8. Can a blown fuse cause the B2958 code?
Yes, a blown fuse in the HVAC system can interrupt power to the panel/defrost door actuator and trigger this code.
9. Is the B2958 code specific to Ford vehicles?
While the code is most commonly associated with Ford vehicles, it can also appear in other manufacturers using similar HVAC systems.
10. How can I prevent the B2958 code from occurring?
Regularly inspect the HVAC system components, ensure wiring is in good condition, and avoid forcing the vent controls to prevent actuator or circuit damage.
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