AutoCodes – Mercury – B1336 Mercury

B1336 Mercury Code - Door Ajar Right Rear Circuit Open

Quick Answer

The Smart Junction Box (SJB) sends a voltage signal to the door ajar switches. Common causes include Faulty Door Ajar Right Rear Switch, Door Ajar Right Rear Switch harness is open or shorted, Door Ajar Right Rear Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1336 Mercury indicates Door Ajar Right Rear Circuit Open.
Common causes: Common causes include Faulty Door Ajar Right Rear Switch, Door Ajar Right Rear Switch harness is open or shorted, Door Ajar Right Rear Switch circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 631

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 12, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1336 Mercury Description

The Smart Junction Box (SJB) sends a voltage signal to the door ajar switches. The door ajar switch is closed with the door closed. When the door is opened, the signal to ground is interrupted indicating an open door to the SJB. The Diagnostic Trouble Code (DTC) sets when the SJB detects an open from the RH rear door ajar input circuit.

OBDII Code B1336 Mercury - Door Ajar Right Rear Circuit Open - AutoCodes.com — B1336 Mercury Code - Door Ajar Right Rear Circuit Open

What does this mean?

What are the Possible Causes of the DTC B1336 Mercury?

Faulty Door Ajar Right Rear Switch
Door Ajar Right Rear Switch harness is open or shorted
Door Ajar Right Rear Switch circuit poor electrical connection
Faulty Smart Junction Box (SJB)

How to Fix the DTC B1336 Mercury?

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 B1336 Mercury 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.

Need more information about the B1336 Mercury code?

Need more information on how to fix the B1336 Mercury code? Get Access to Factory Service Manuals

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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 B1336 Mercury Code

1. What are common symptoms of OBDII code B1336 in a Mercury related to the right rear door ajar circuit?

- Common symptoms include the right rear door showing as open on the dashboard display even when it's closed, interior lights staying on, and possible issues with power door locks.

2. What are possible causes of the B1336 code indicating a right rear door ajar circuit open in a Mercury?

- Possible causes include a faulty door ajar sensor, wiring issues in the circuit, a malfunctioning control module, or a problem with the door latch mechanism.

3. How can I diagnose the B1336 OBDII code on my Mercury for the right rear door ajar circuit?

- You can start by visually inspecting the wiring and connections, checking the door latch for proper operation, and using a multimeter to test the sensor and circuit for continuity and proper voltage.

4. Can I continue driving my Mercury with the B1336 code indicating the right rear door ajar circuit open?

- It is not recommended to drive the vehicle with this code as it can lead to battery drain, electrical issues, or safety concerns due to incorrect door status indications.

5. What are some repair tips for fixing the B1336 code related to the right rear door ajar circuit in a Mercury?

- Repair tips may include replacing the faulty door ajar sensor, repairing damaged wiring, resetting the control module, or adjusting the door latch mechanism to ensure proper closure.

6. Will resetting the OBDII code B1336 clear the issue with the right rear door ajar circuit in my Mercury?

- Resetting the code may temporarily clear the warning, but if the underlying issue persists, the code is likely to reappear until the root cause is addressed and resolved.

7. How much does it typically cost to repair the B1336 OBDII code for the right rear door ajar circuit open in a Mercury?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Can extreme weather conditions affect the likelihood of triggering the B1336 code in a Mercury?

- Yes, extreme temperatures or moisture can potentially affect the operation of the door ajar sensor or the circuit, leading to false readings and triggering the B1336 code.

9. Is the B1336 code specific to certain Mercury models, or can it occur across various years and models?

- The B1336 code related to the right rear door ajar circuit open can occur in various Mercury models equipped with OBDII systems, so it is not limited to a specific year or model.

10. How can I prevent the recurrence of the B1336 code in my Mercury after resolving the right rear door ajar circuit issue?

- To prevent the code from reoccurring, ensure regular maintenance checks on the door sensors, wiring, and latch mechanisms, and address any issues promptly to maintain proper functionality.