AutoCodes – Mercury – B1013 Mercury

B1013 Mercury Code - Heater Rear Defog Switch

Quick Answer

The Body Control Module (BCM) monitors the Heater Rear Defog Switch. Common causes include Faulty Heater Rear Defog Switch, Heater Rear Defog Switch harness is open or shorted, Heater Rear Defog Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1013 Mercury indicates Heater Rear Defog Switch.
Common causes: Common causes include Faulty Heater Rear Defog Switch, Heater Rear Defog Switch harness is open or shorted, Heater Rear Defog Switch circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 1,140

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 11, 2021

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1013 Mercury Description

The Body Control Module (BCM) monitors the Heater Rear Defog Switch. The BCM sets the OBDII code when the Heater Rear Defog Switch is not to factory specifications.

OBDII Code B1013 Mercury - Heater Rear Defog Switch - AutoCodes.com — B1013 Mercury Code - Heater Rear Defog Switch

What does this mean?

What are the Possible Causes of the DTC B1013 Mercury?

Faulty Heater Rear Defog Switch
Heater Rear Defog Switch harness is open or shorted
Heater Rear Defog Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1013 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 does this mean?

Code Tech Notes

B1013:11 Heater Rear Defog Switch Circuit Short to Ground
B1013:23 Heater Rear Defog Switch Signal Stuck Low

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1013 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.

Need more information about the B1013 Mercury code?

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Need Help with the Code?

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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 B1013 Mercury Code

1. What does the OBDII code B1013 for Mercury Heater Rear Defog Switch indicate?

The code B1013 indicates a malfunction in the heater rear defog switch circuit of your Mercury vehicle.

2. What are the common symptoms of a B1013 OBDII code in a Mercury?

Common symptoms of the B1013 code may include the rear defogger not working, the rear defogger turning on/off intermittently, or the rear defogger switch not responding.

3. What are the possible causes of the B1013 OBDII code in a Mercury?

Potential causes of the B1013 code include a faulty rear defogger switch, damaged wiring or connectors in the rear defogger circuit, or a malfunctioning rear defogger relay.

4. How can I diagnose the B1013 OBDII code related to the Mercury Heater Rear Defog Switch?

To diagnose the B1013 code, you may need to inspect the rear defogger switch, check the wiring and connectors for damage, and test the rear defogger relay for proper functioning.

5. Can I repair the B1013 OBDII code issue in my Mercury at home?

Depending on your automotive repair skills, you may be able to repair the B1013 code issue at home by replacing the faulty rear defogger switch, repairing damaged wiring, or replacing the defective relay.

6. Is it safe to continue driving with the B1013 OBDII code in my Mercury?

While driving with the B1013 code may not pose an immediate safety risk, it is recommended to address the issue promptly to ensure the proper functioning of the rear defogger system in your Mercury vehicle.

7. How much does it typically cost to repair the B1013 OBDII code in a Mercury at a professional auto repair shop?

The cost of repairing the B1013 code in a Mercury can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor at a professional auto repair shop.

8. Can a faulty rear defogger switch cause other issues in my Mercury besides triggering the B1013 OBDII code?

Yes, a faulty rear defogger switch can potentially cause other issues such as reduced visibility due to a non-functioning rear defogger, which can impact driving safety in adverse weather conditions.

9. Are there any preventive maintenance tips to avoid encountering the B1013 OBDII code in my Mercury?

To prevent the B1013 code from appearing, you can regularly inspect the rear defogger system, ensure proper functioning of the switch, and address any issues promptly to avoid potential malfunctions.

10. Will resetting the OBDII system clear the B1013 code in my Mercury, or do I need to address the underlying issue first?

Resetting the OBDII system may temporarily clear the B1013 code, but if the underlying issue with the rear defogger switch persists, the code is likely to reappear. It is recommended to address the root cause of the problem first.