AutoCodes – Generic – B1D13

B1D13 Code - Interior Lights Circuit 'A'

Quick Answer

The Body Control Module (BCM) monitors the Interior Lights Circuit 'A'. Common causes include Faulty Interior Lights Circuit 'A', Interior Lights Circuit 'A' harness is open or shorted, Interior Lights Circuit 'A' 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: B1D13 indicates Interior Lights Circuit 'A'.
Common causes: Common causes include Faulty Interior Lights Circuit 'A', Interior Lights Circuit 'A' harness is open or shorted, Interior Lights Circuit 'A' 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 6,484

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 Aug 26, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1D13 Description

The Body Control Module (BCM) monitors the Interior Lights Circuit 'A'. The BCM sets the OBDII code when the Interior Lights Circuit 'A' is not to factory specifications.

OBDII Code B1D13 - Interior Lights Circuit 'A' - AutoCodes.com — B1D13 Code - Interior Lights Circuit 'A'

What does this mean?

What are the Possible Causes of the DTC B1D13?

Faulty Interior Lights Circuit 'A'
Interior Lights Circuit 'A' harness is open or shorted
Interior Lights Circuit 'A' circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1D13?

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

B1D13:11 Interior Lights Circuit 'A' Circuit Short to Ground
B1D13:12 Interior Lights Circuit 'A' Circuit Short To Battery

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1D13 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 B1D13 code?

Need more information on how to fix the B1D13 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1D13 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1D13 Chrysler — Passenger Mirror Position Sensor Power Supply Circuit High
B1D13 Dodge — Passenger Mirror Position Sensor Power Supply Circuit High
B1D13 Ford — Interior Lights Circuit 'A'
B1D13 Jeep — Passenger Mirror Position Sensor Power Supply Circuit High
B1D13 Lincoln — Interior Lights Circuit 'A'
B1D13 Mercury — Interior Lights Circuit 'A'
B1D13 RAM — Passenger Mirror Position Sensor Power Supply Circuit High

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 B1D13 Code

1. What are the common symptoms of OBDII code B1D13 related to the Interior Lights Circuit 'A'?

The common symptoms include interior lights not working, flickering lights, or lights staying on even when the vehicle is turned off.

2. What are the possible causes of OBDII code B1D13 related to the Interior Lights Circuit 'A'?

Possible causes include a faulty interior light switch, wiring issues in the circuit, blown fuses, or a malfunctioning body control module.

3. How can I diagnose the issue causing OBDII code B1D13 related to the Interior Lights Circuit 'A'?

You can start by checking the interior light switch for proper functionality, inspecting the wiring for any visible damage, testing the fuses related to the interior lights, and scanning the body control module for any error codes.

4. Can a DIY enthusiast repair OBDII code B1D13 related to the Interior Lights Circuit 'A'?

Depending on the exact cause, some DIY repairs may be possible, such as replacing a faulty interior light switch or a blown fuse. However, more complex issues may require professional diagnosis and repair.

5. Is it safe to continue driving with OBDII code B1D13 related to the Interior Lights Circuit 'A'?

While the issue may not affect the drivability of the vehicle, it is not recommended to ignore interior light malfunctions as they can impact visibility inside the car, especially at night.

6. How much does it typically cost to repair OBDII code B1D13 related to the Interior Lights Circuit 'A'?

The cost of repair can vary depending on the exact cause of the issue. Simple fixes like replacing a fuse may cost less, while more complex repairs involving the body control module can be more expensive.

7. Can weather conditions affect OBDII code B1D13 related to the Interior Lights Circuit 'A'?

Extreme weather conditions such as excessive heat or moisture can potentially cause electrical issues in the interior lights circuit, leading to the triggering of this OBDII code.

8. Are there any preventive measures to avoid OBDII code B1D13 related to the Interior Lights Circuit 'A'?

Regularly checking the interior lights for proper functioning, avoiding overloading the circuit with aftermarket accessories, and ensuring proper maintenance of the electrical system can help prevent this issue.

9. Can a weak car battery trigger OBDII code B1D13 related to the Interior Lights Circuit 'A'?

Yes, a weak car battery can sometimes cause electrical issues, including problems with the interior lights circuit, which may lead to the triggering of this OBDII code.

10. How long does it typically take to diagnose and repair OBDII code B1D13 related to the Interior Lights Circuit 'A'?

The time required for diagnosis and repair can vary depending on the complexity of the issue. Simple fixes may take a short amount of time, while more involved repairs may require several hours or even days.