AutoCodes – Generic – B1563

B1563 Code - Door Ajar Circuit Failure

Quick Answer

The Body Control Module (BCM) monitors the Door Ajar Switch. Common causes include Faulty Door Ajar Switch, Door Ajar Switch harness is open or shorted, Door Ajar Switch 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: B1563 indicates Door Ajar Circuit Failure.
Common causes: Common causes include Faulty Door Ajar Switch, Door Ajar Switch harness is open or shorted, Door Ajar Switch 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 5,914

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 May 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1563 Description

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

OBDII Code B1563 - Door Ajar Circuit Failure - AutoCodes.com — B1563 Code - Door Ajar Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B1563?

Faulty Door Ajar Switch
Door Ajar Switch harness is open or shorted
Door Ajar Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1563?

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 B1563 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 B1563 Code

1. What are common symptoms of OBDII code B1563 (Door Ajar Circuit Failure)?

- Common symptoms include the interior lights staying on, the door ajar warning light remaining illuminated, and potential issues with power door locks.

2. What are the possible causes of OBDII code B1563?

- Possible causes include a faulty door ajar switch, wiring issues in the door circuit, a malfunctioning body control module, or a problem with the door latch mechanism.

3. How can I diagnose the cause of OBDII code B1563?

- To diagnose the issue, you can start by visually inspecting the door ajar switches and wiring for any visible damage. Using a multimeter to test the continuity of the circuit and checking for proper voltage can help pinpoint the problem.

4. Can I reset OBDII code B1563 without fixing the underlying issue?

- Resetting the code without addressing the root cause, such as a faulty switch or wiring, will likely result in the code reappearing once the system detects the ongoing problem.

5. Are there any safety concerns associated with OBDII code B1563?

- While the code itself may not pose an immediate safety risk, issues with power door locks or interior lights staying on can drain the vehicle's battery or create visibility problems at night.

6. How difficult is it to repair OBDII code B1563?

- The difficulty of the repair can vary depending on the exact cause of the code. Simple fixes like replacing a faulty door ajar switch may be relatively straightforward, while troubleshooting wiring issues or module malfunctions may require more expertise.

7. Can I drive my vehicle with OBDII code B1563 active?

- It is generally safe to drive with the code active, but addressing the underlying issue promptly is recommended to prevent potential electrical problems or draining the battery.

8. Can extreme weather conditions trigger OBDII code B1563?

- Extreme temperatures or moisture can sometimes exacerbate issues with door ajar switches or wiring, leading to the activation of OBDII code B1563.

9. Will OBDII code B1563 cause my vehicle to fail an emissions test?

- OBDII code B1563 is not directly related to emissions control, so it should not cause your vehicle to fail an emissions test. However, it is still important to address the issue for proper vehicle operation.

10. How much does it typically cost to repair OBDII code B1563?

- The cost of repair can vary depending on the exact cause of the code, but it may range from a few dollars for a simple switch replacement to a few hundred dollars for more complex wiring or module repairs.