B1806 RAM Code - Passenger Door Lock/Unlock Switch Circuit Low
Quick Answer
The Instrument Cluster monitors Passenger Door Lock/Unlock Switch. Common causes include Faulty Passenger Door Lock/Unlock Switch, Passenger Door Lock/Unlock Switch harness is open or shorted, Passenger Door Lock/Unlock 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
- B1806 RAM indicates Passenger Door Lock/Unlock Switch Circuit Low.
- Common causes
- Common causes include Faulty Passenger Door Lock/Unlock Switch, Passenger Door Lock/Unlock Switch harness is open or shorted, Passenger Door Lock/Unlock 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.
Code B1806 RAM Description
What are the Possible Causes of the DTC B1806 RAM?
- Faulty Passenger Door Lock/Unlock Switch
- Passenger Door Lock/Unlock Switch harness is open or shorted
- Passenger Door Lock/Unlock Switch circuit poor electrical connection
- Faulty Instrument Cluster
How to Fix the DTC B1806 RAM?
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 B1806 RAM 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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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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