AutoCodes – Mercury – B295D Mercury

B295D Mercury Code - Right Blend Door Potentiometer Feedback Short to Ground

Quick Answer

Under normal operation, to rotate the blend door actuator, the Electronic Manual Temperature Control (EMTC) or Electronic Automatic Temperature Control (EATC) module supplies voltage to the actuator motors through the door actuator clockwise circuits, and supplies ground through the door actuator counterclockwise circuits. Common causes include Faulty Right Blend Door Actuator, Right Blend Door Actuator harness is open or shorted, Right Blend 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: B295D Mercury indicates Right Blend Door Potentiometer Feedback Short to Ground.
Common causes: Common causes include Faulty Right Blend Door Actuator, Right Blend Door Actuator harness is open or shorted, Right Blend 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.

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Code Popularity 979

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 Oct 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B295D Mercury Description

Under normal operation, to rotate the blend door actuator, the Electronic Manual Temperature Control (EMTC) or Electronic Automatic Temperature Control (EATC) module supplies voltage to the actuator motors through the door actuator clockwise circuits, and supplies ground through the door actuator counterclockwise circuits. To reverse the actuator rotation, the EMTC module or EATC module reverses the voltage and ground circuits.
The actuator feedback resistors are supplied a ground from the EMTC module or EATC module by the door actuator return circuits and a 5-volt reference voltage on the door actuator reference circuits. The EMTC module or EATC module reads the voltage on the blend door actuator feedback circuits to determine the door actuator position, by the position of the actuator feedback resistor wiper arm.

OBDII Code B295D Mercury - Right Blend Door Potentiometer Feedback Short to Ground - AutoCodes.com — B295D Mercury Code - Right Blend Door Potentiometer Feedback Short to Ground

What does this mean?

What are the Possible Causes of the DTC B295D Mercury?

Faulty Right Blend Door Actuator
Right Blend Door Actuator harness is open or shorted
Right Blend Door Actuator circuit poor electrical connection
Faulty Electronic Manual Temperature Control (EMTC) or Electronic Automatic Temperature Control (EATC)

How to Fix the DTC B295D Mercury?

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 B295D Mercury 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 B295D Mercury Code

1. What are the common symptoms of OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground?

- Common symptoms include issues with the vehicle's heating and cooling system, such as inconsistent temperature control or lack of airflow adjustment.

2. What causes the OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground?

- The code is typically triggered by a short to ground in the feedback circuit of the right blend door potentiometer, often due to wiring issues or a faulty potentiometer.

3. How can I diagnose the OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground?

- Diagnosis involves using a scan tool to read the trouble code, testing the blend door potentiometer and associated wiring for shorts, and verifying proper voltage and resistance values.

4. Can I drive my Mercury with the OBDII code B295D related to the Right Blend Door Potentiometer Feedback Short to Ground?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the heating and cooling system components.

5. What are the repair options for fixing the OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground?

- Repair options include repairing or replacing damaged wiring, replacing the right blend door potentiometer, and clearing the trouble code with a scan tool.

6. How much does it cost to repair the OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground?

- Repair costs can vary depending on the extent of the damage and whether professional assistance is required, but it may range from $100 to $300 for parts and labor.

7. Can I reset the OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground without fixing the issue?

- While you can clear the code temporarily with a scan tool, it is important to address the underlying problem to prevent further issues with the heating and cooling system.

8. Are there any preventive maintenance tips to avoid the OBDII code B295D related to the Right Blend Door Potentiometer Feedback Short to Ground in a Mercury?

- Regularly inspecting and maintaining the heating and cooling system components, as well as addressing any wiring issues promptly, can help prevent this code from recurring.

9. How long does it take to repair the OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground?

- The repair time can vary based on the extent of the damage and the expertise of the person performing the repair, but it typically takes 1-2 hours to complete.

10. Is the OBDII code B295D in a Mercury related to the Right Blend Door Potentiometer Feedback Short to Ground a common issue?

- While not extremely common, this code can occur in Mercury vehicles with blend door potentiometer feedback circuit problems, especially in older models or those with wiring issues.