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B1805 Dodge Code - Passenger Door Lock/Unlock Switch Circuit Performance Cluster

Quick Answer

The B1805 diagnostic trouble code (DTC) for Dodge vehicles specifically refers to the Passenger Door Lock/Unlock Switch Circuit Performance Cluster. Common causes include Faulty passenger door lock switch, Wiring issues such as a short or open circuit, Defective body control module (BCM). 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
B1805 Dodge indicates Passenger Door Lock/Unlock Switch Circuit Performance Cluster.
Common causes
Common causes include Faulty passenger door lock switch, Wiring issues such as a short or open circuit, Defective body control module (BCM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code B1805 Dodge Description

The B1805 diagnostic trouble code (DTC) for Dodge vehicles specifically refers to the Passenger Door Lock/Unlock Switch Circuit Performance Cluster. This code indicates that there is a problem with the circuit that controls the lock and unlock function of the passenger door. The switch that is used to lock and unlock the door is not functioning properly, which can lead to issues with accessing the vehicle and potentially compromising its security.

OBDII Code B1805 Dodge - Passenger Door Lock/Unlock Switch Circuit Performance Cluster
B1805 Dodge Code - Passenger Door Lock/Unlock Switch Circuit Performance Cluster

Common Causes of B1805 Dodge

  1. Faulty passenger door lock switch.
  2. Wiring issues such as a short or open circuit.
  3. Defective body control module (BCM).
  4. Corrosion or damage to electrical connectors.
  5. Water damage to the door lock switch or wiring.

Symptoms of B1805 Dodge

  1. Inability to lock or unlock the passenger door using the switch.
  2. Unusual behavior or sounds when attempting to use the door lock switch.
  3. Warning light on the dashboard indicating a door lock system malfunction.
  4. Intermittent functioning of the passenger door lock switch.

How to Fix B1805 Dodge

  1. Begin by conducting a visual inspection of the passenger door lock switch and wiring to check for any visible damage or corrosion.
  2. Test the switch using a multimeter to determine if it is functioning properly.
  3. Check the wiring for continuity and repair any damaged wires or connectors.
  4. If the switch and wiring are in good condition, test the body control module (BCM) for any faults and replace if necessary.
  5. Clear the DTC from the vehicle's memory using a diagnostic scanner and test the passenger door lock switch to ensure proper functionality.

Cost to Fix B1805 Dodge

The typical repair costs for addressing the B1805 DTC on a Dodge vehicle can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also impact the overall repair costs. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.

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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 B1805 Dodge Code

1. What are common symptoms of OBDII code B1805 in a Dodge related to the passenger door lock/unlock switch circuit?

Symptoms may include issues with the passenger door lock function, such as failure to lock or unlock, intermittent operation, or non-responsive switch.

2. What could cause OBDII code B1805 to trigger in a Dodge concerning the passenger door lock/unlock switch circuit?

Possible causes include a faulty passenger door lock/unlock switch, damaged wiring or connectors in the circuit, or a malfunctioning Body Control Module (BCM).

3. How can I diagnose the root cause of OBDII code B1805 in my Dodge related to the passenger door lock/unlock switch circuit?

Perform a thorough visual inspection of the wiring and connectors, test the passenger door lock/unlock switch for proper functionality, and use a diagnostic scanner to communicate with the BCM for fault code retrieval.

4. Are there any quick repair tips for addressing OBDII code B1805 in a Dodge associated with the passenger door lock/unlock switch circuit?

Try cleaning the connectors and verifying proper wiring connections before replacing any components. Resetting the fault code and testing the system can also help in identifying the issue.

5. Can a DIY enthusiast fix OBDII code B1805 in a Dodge regarding the passenger door lock/unlock switch circuit?

Depending on the skill level and experience with automotive electrical systems, some DIY enthusiasts may be able to diagnose and repair this issue themselves. However, complex electrical troubleshooting may require professional assistance.

6. Is it safe to continue driving with OBDII code B1805 present in a Dodge related to the passenger door lock/unlock switch circuit?

While the vehicle may still be operable with this code, it is recommended to address the issue promptly to prevent potential inconvenience or safety concerns related to door lock functionality.

7. How much can I expect to pay for repairs related to OBDII code B1805 in a Dodge involving the passenger door lock/unlock switch circuit?

The cost of repairs can vary depending on the root cause of the issue. Simple fixes like cleaning connectors may be inexpensive, while replacing components or addressing complex wiring problems could be more costly.

8. Will resetting the OBDII code B1805 in a Dodge related to the passenger door lock/unlock switch circuit make it go away permanently?

Resetting the code may temporarily clear the fault, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and fix the root cause to prevent ongoing problems.

9. Can a malfunctioning passenger door lock/unlock switch cause other issues in a Dodge besides triggering OBDII code B1805?

Yes, a faulty switch can lead to inconvenience, security concerns, or even potential safety hazards if the door does not lock or unlock properly. Addressing the switch issue promptly is crucial.

10. How long does it typically take to repair OBDII code B1805 in a Dodge related to the passenger door lock/unlock switch circuit?

The repair time can vary depending on the complexity of the issue. Simple fixes may take a short amount of time, while more involved repairs could require additional troubleshooting and labor.

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