AutoCodes – Jeep – B1806 Jeep

B1806 Jeep 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 Jeep 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 1,331
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 02, 2019
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Code B1806 Jeep Description

The Instrument Cluster monitors Passenger Door Lock/Unlock Switch. When the Instrument Cluster senses voltage to the passenger door lock switch below 0.25 volts, the input circuit is not valid and this Diagnostic Trouble Code (DTC) will set.
OBDII Code B1806 Jeep - Passenger Door Lock/Unlock Switch Circuit Low - AutoCodes.com
B1806 Jeep Code - Passenger Door Lock/Unlock Switch Circuit Low

What are the Possible Causes of the DTC B1806 Jeep?

  • 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 Jeep?

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 Jeep 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 B1806 Jeep Code

1. What are the common symptoms of OBDII code B1806 in a Jeep related to the Passenger Door Lock/Unlock Switch Circuit Low?

- Common symptoms include malfunctioning passenger door lock/unlock switch, inability to lock or unlock the door electronically, and warning lights on the dashboard.

2. What are the possible causes of OBDII code B1806 in a Jeep indicating a Passenger Door Lock/Unlock Switch Circuit Low?

- Possible causes include damaged wiring or connectors in the door lock switch circuit, a faulty door lock switch, or a malfunctioning body control module.

3. How can I diagnose the issue causing OBDII code B1806 in a Jeep related to the Passenger Door Lock/Unlock Switch Circuit Low?

- Diagnosis involves checking the wiring and connectors for damage, testing the door lock switch for functionality, and using an OBDII scanner to read and clear the code.

4. Is it safe to continue driving my Jeep with OBDII code B1806 related to the Passenger Door Lock/Unlock Switch Circuit Low?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to avoid potential inconvenience or safety concerns.

5. Can I repair OBDII code B1806 in a Jeep indicating a Passenger Door Lock/Unlock Switch Circuit Low myself?

- Depending on your experience and tools, you may be able to repair this issue yourself by inspecting and repairing wiring, replacing the door lock switch, or addressing any other identified faults.

6. Are there any simple tips to troubleshoot OBDII code B1806 in a Jeep related to the Passenger Door Lock/Unlock Switch Circuit Low?

- You can start by checking the fuse related to the door locks, ensuring the switch is clean and functioning properly, and inspecting the wiring for any visible damage.

7. How much does it typically cost to repair OBDII code B1806 in a Jeep due to the Passenger Door Lock/Unlock Switch Circuit Low?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve expenses for parts like a new door lock switch and labor for installation.

8. Can a malfunctioning key fob cause OBDII code B1806 related to the Passenger Door Lock/Unlock Switch Circuit Low in a Jeep?

- A malfunctioning key fob can sometimes contribute to issues with door lock functionality but is not a direct cause of the specific circuit low code.

9. Will resetting the OBDII code B1806 related to the Passenger Door Lock/Unlock Switch Circuit Low make the problem go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear as the problem persists.

10. Is it necessary to visit a dealership for repairs related to OBDII code B1806 in a Jeep due to the Passenger Door Lock/Unlock Switch Circuit Low?

- While a dealership can provide specialized service, independent mechanics or DIY repairs can also effectively address the issue, potentially offering cost savings.

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