AutoCodes – Ford – B2959 Ford

B2959 Ford Code - Panel/Defrost Door Close 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: B2959 Ford indicates Panel/Defrost Door Close 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.

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Code Popularity 522

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 20, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2959 Ford Description

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. To rotate the mode door actuator counterclockwise, the EMTC module or EATC module reverses the voltage and ground circuits.
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.

OBDII Code B2959 Ford - Panel/Defrost Door Close Circuit Short/Failure - AutoCodes.com — B2959 Ford Code - Panel/Defrost Door Close Circuit Short/Failure

What does this mean?

What are the Possible Causes of the DTC B2959 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 B2959 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 B2959 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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Need more information on how to fix the B2959 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2959 Ford code diagnosed by a professional: Find a repair shop in your area

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 B2959 Ford Code

1. What are the common symptoms of OBDII code B2959 in a Ford vehicle?

- Common symptoms include issues with the panel/defrost door operation, such as the door not closing properly or failing to switch between different modes.

2. What could cause the OBDII code B2959 in a Ford vehicle?

- The code B2959 is typically caused by a short circuit or failure in the panel/defrost door close circuit, often due to wiring issues or a faulty door actuator.

3. How can I diagnose the OBDII code B2959 in my Ford vehicle?

- Diagnosing the code B2959 involves using a scan tool to read the trouble code, inspecting the panel/defrost door components, and testing the circuit for continuity and proper operation.

4. Can I still drive my Ford vehicle with the OBDII code B2959 present?

- It is not recommended to drive with the B2959 code unresolved, as it can lead to HVAC system malfunctions and affect the overall comfort and safety inside the vehicle.

5. What are the repair options for fixing the OBDII code B2959 in a Ford vehicle?

- Repair options include checking and repairing any damaged wiring, replacing the panel/defrost door actuator, resetting the HVAC system, and clearing the trouble code.

6. How much does it typically cost to repair the OBDII code B2959 in a Ford vehicle?

- The cost of repairing the B2959 code can vary depending on the underlying issue, but it may range from $100 to $300 for parts and labor.

7. Are there any preventive measures to avoid the OBDII code B2959 in a Ford vehicle?

- Regular maintenance of the HVAC system, checking for any unusual noises or malfunctions, and addressing any issues promptly can help prevent the occurrence of the B2959 trouble code.

8. Can a DIY enthusiast fix the OBDII code B2959 in a Ford vehicle?

- While some DIYers may have the skills to diagnose and repair the B2959 code, it is recommended to seek professional help, especially if dealing with electrical components.

9. Will resetting the OBDII code B2959 make it go away permanently?

- Resetting the B2959 code may clear it temporarily, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces.

10. How long does it take to repair the OBDII code B2959 in a Ford vehicle?

- The repair time for the B2959 code can vary depending on the exact cause and the availability of parts, but it typically takes a few hours to complete the repair.