AutoCodes – Dodge – B1810 Dodge

B1810 Dodge Code - Driver Door Ajar Input Circuit Low

Quick Answer

The Powertrain Control Module (PCM) receives a message over the CAN BUS from the Body Control Module (BCM) that there is a fault with the Left Front Door Switch Assembly. Common causes include Faulty Left Front Door Latch Assembly, Left Front Door Latch Assembly harness is open or shorted, Left Front Door Latch Assembly 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: B1810 Dodge indicates Driver Door Ajar Input Circuit Low.
Common causes: Common causes include Faulty Left Front Door Latch Assembly, Left Front Door Latch Assembly harness is open or shorted, Left Front Door Latch Assembly 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 1,193

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 Jul 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1810 Dodge Description

The Powertrain Control Module (PCM) receives a message over the CAN BUS from the Body Control Module (BCM) that there is a fault with the Left Front Door Switch Assembly.

OBDII Code B1810 Dodge - Driver Door Ajar Input Circuit Low - AutoCodes.com — B1810 Dodge Code - Driver Door Ajar Input Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1810 Dodge?

Faulty Left Front Door Latch Assembly
Left Front Door Latch Assembly harness is open or shorted
Left Front Door Latch Assembly circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1810 Dodge?

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 B1810 Dodge 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 B1810 Dodge Code

1. What are the common symptoms of OBDII code B1810 Dodge (Driver Door Ajar Input Circuit Low)?

- Common symptoms include the interior lights staying on, door ajar warning on the dashboard, and difficulty locking the vehicle.

2. What are the possible causes of the B1810 Dodge code?

- The code can be triggered by a faulty door ajar switch, damaged wiring in the door jamb, or a defective body control module.

3. How can I diagnose the B1810 Dodge code?

- You can diagnose the code by visually inspecting the door ajar switch and wiring, checking for loose connections, and using a multimeter to test the switch's functionality.

4. Can I drive my vehicle with the B1810 Dodge code?

- It is generally safe to drive your vehicle with this code, but it is recommended to address the issue promptly to prevent draining the battery due to the interior lights staying on.

5. How should I repair the B1810 Dodge code?

- Repair options include replacing the door ajar switch, repairing damaged wiring, or reprogramming the body control module if necessary.

6. Are there any DIY tips for fixing the B1810 Dodge code?

- DIY tips include checking for loose connections, cleaning the door ajar switch contacts, and ensuring proper alignment of the switch with the door latch.

7. Can weather conditions affect the B1810 Dodge code?

- Yes, extreme temperatures or moisture can sometimes cause intermittent issues with the door ajar switch, leading to the code being triggered.

8. How long does it typically take to repair the B1810 Dodge code?

- The repair time can vary depending on the exact cause of the code and the complexity of accessing the door ajar switch and wiring. It may take anywhere from 30 minutes to a few hours.

9. Will resetting the OBDII system clear the B1810 Dodge code?

- Resetting the system may temporarily clear the code, but it is recommended to diagnose and address the underlying issue to prevent the code from reoccurring.

10. Can I prevent the B1810 Dodge code from appearing again in the future?

- Regularly inspecting the door ajar switch and wiring for damage, ensuring proper door closure, and addressing any issues promptly can help prevent the code from reappearing.