B1806 RAM Code - Passenger Door Lock/Unlock Switch Circuit Low
Quick Answer
The B1806 diagnostic trouble code (DTC) indicates a problem with the passenger door lock/unlock switch circuit being low. Common causes include Damaged wiring or connectors in the passenger door lock/unlock switch circuit, A faulty passenger door lock/unlock switch, Malfunctioning control module responsible for the central locking system. 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
- B1806 RAM indicates Passenger Door Lock/Unlock Switch Circuit Low.
- Common causes
- Common causes include Damaged wiring or connectors in the passenger door lock/unlock switch circuit, A faulty passenger door lock/unlock switch, Malfunctioning control module responsible for the central locking system.
- 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 B1806 RAM Description
The B1806 diagnostic trouble code (DTC) indicates a problem with the passenger door lock/unlock switch circuit being low. This means that the circuit is not receiving the expected voltage, which can lead to issues with the operation of the passenger door lock/unlock switch. The passenger door lock/unlock switch is a crucial component of the vehicle's central locking system, allowing the driver or passengers to lock or unlock the doors conveniently. When this circuit is low, it can result in the passenger door lock/unlock switch not functioning correctly, potentially leading to safety concerns and inconvenience for the vehicle occupants.
Common Causes of B1806 RAM
- Damaged wiring or connectors in the passenger door lock/unlock switch circuit.
- A faulty passenger door lock/unlock switch.
- Malfunctioning control module responsible for the central locking system.
- Poor electrical connection in the circuit.
Symptoms of B1806 RAM
- Inability to lock or unlock the passenger door using the switch.
- Intermittent operation of the passenger door lock/unlock switch.
- Illumination of the door ajar warning light on the dashboard.
- Audible clicking or buzzing noises when attempting to use the switch.
How to Fix B1806 RAM
- Begin by conducting a visual inspection of the wiring and connectors in the passenger door lock/unlock switch circuit to check for any visible damage or corrosion.
- Test the passenger door lock/unlock switch using a multimeter to determine if it is functioning correctly.
- Check the control module for any signs of malfunction and perform diagnostic tests to identify any issues.
- Repair or replace any damaged wiring, connectors, the switch, or the control module as needed to resolve the low circuit voltage issue.
- Clear the DTC from the vehicle's memory using a diagnostic scan tool and test the passenger door lock/unlock switch to ensure proper operation.
Cost to Fix B1806 RAM
The typical repair costs for addressing a B1806 DTC related to the passenger door lock/unlock switch circuit low can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair could range from $50 to $200, while labor costs could range from $100 to $300. However, it's important to note that these estimates are rough averages, and actual costs may vary based on factors such as the vehicle make and model, the location of the repair shop, and the rates charged for diagnosis and labor. It's advisable to consult with a qualified mechanic or auto repair shop to obtain a more accurate cost estimate based on the specific circumstances of the vehicle in question.
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Frequently Asked Questions about B1806 RAM Code
1. What does the OBDII code B1806 mean in a RAM vehicle?
B1806 indicates a problem with the passenger door lock/unlock switch circuit, specifically that the circuit is reading a low voltage condition.
2. What are the symptoms of the B1806 code?
Symptoms may include the passenger door lock/unlock switch not functioning, intermittent door lock operation, or no response when using the switch.
3. What causes the B1806 code to appear?
Common causes include damaged wiring, a faulty door lock/unlock switch, poor electrical connections, or a malfunctioning body control module (BCM).
4. Can a blown fuse cause the B1806 code?
Yes, a blown fuse related to the door lock circuit can cause a low voltage condition and trigger the B1806 code.
5. How do I diagnose the B1806 code?
Start by visually inspecting the wiring and connectors for damage or corrosion. Use a multimeter to check for proper voltage in the circuit and test the functionality of the passenger door lock/unlock switch.
6. Can I still drive my RAM vehicle with the B1806 code?
Yes, you can drive the vehicle, but the passenger door lock/unlock feature may not function correctly, which could pose a security concern.
7. What repairs can fix the B1806 code?
Repairs may include replacing damaged wiring, repairing loose or corroded connections, replacing the passenger door lock/unlock switch, or reprogramming or replacing the body control module (BCM) if necessary.
8. How much does it typically cost to fix the B1806 code?
Repair costs can vary but generally range from $50 to $300, depending on whether you need to replace the switch, repair wiring, or address issues with the BCM.
9. Can I reset the B1806 code without fixing the problem?
You can clear the code temporarily with an OBDII scanner, but if the underlying issue is not resolved, the code will likely return.
10. Is it possible for the B1806 code to be caused by a software issue?
Yes, in some cases, a software glitch in the body control module (BCM) may cause the code, and updating or reprogramming the BCM could resolve it.
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