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Engine-Codes – Generic – B165E

B165E Code - Park Lamp Control Circuit Open

Quick Answer

The B165E diagnostic trouble code (DTC) indicates that there is an open circuit in the park lamp control system of the vehicle. Common causes include Damaged wiring or connectors in the park lamp control circuit, Faulty park lamp control module, Blown fuse related to the park lamp circuit. 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
B165E indicates Park Lamp Control Circuit Open.
Common causes
Common causes include Damaged wiring or connectors in the park lamp control circuit, Faulty park lamp control module, Blown fuse related to the park lamp circuit.
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 07, 2024
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Code B165E Description

The B165E diagnostic trouble code (DTC) indicates that there is an open circuit in the park lamp control system of the vehicle. The park lamp control circuit is responsible for controlling the operation of the park lamps, which are the exterior lights on the front and rear of the vehicle that provide visibility to other drivers and pedestrians. When this circuit is open, it means that there is a break or interruption in the electrical connection, preventing the park lamps from functioning properly.

OBDII Code B165E - Park Lamp Control Circuit Open
B165E Code - Park Lamp Control Circuit Open

Common Causes of B165E

  1. Damaged wiring or connectors in the park lamp control circuit.
  2. Faulty park lamp control module.
  3. Blown fuse related to the park lamp circuit.
  4. Malfunctioning park lamp switch.
  5. Corrosion or rust affecting the electrical connections.

Symptoms of B165E

  1. Park lamps not turning on when the headlight switch is activated.
  2. Park lamps flickering intermittently.
  3. Dashboard warning light indicating a park lamp malfunction.
  4. Vehicle failing state inspection due to non-functional park lamps.

How to Fix B165E

  1. Perform a visual inspection of the park lamp control circuit to check for any obvious signs of damage or disconnection.
  2. Test the park lamp control module and switch for proper functionality using a multimeter.
  3. Check and replace any blown fuses related to the park lamp circuit.
  4. Repair or replace any damaged wiring or connectors in the park lamp control circuit.
  5. Clear the DTC using a diagnostic scan tool and verify that the park lamps are functioning correctly after repairs.

Cost to Fix B165E

The typical repair costs for addressing a B165E code related to a park lamp control circuit open issue can vary depending on the specific cause of the problem and the labor rates in your area. Generally, the cost of parts for this repair could range from $50 to $200, while labor costs may range from $100 to $300. Overall, you can expect to pay anywhere from $150 to $500 for this repair, but it's advisable to obtain quotes from local auto repair shops to get a more accurate estimate based on your vehicle's make and model. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops may offer more competitive pricing.

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Code B165E Information for Specific Makes

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 B165E Code

1. What are the common symptoms of OBDII code B165E (Park Lamp Control Circuit Open)?

The common symptoms of code B165E include inoperative park lamps, dim or flickering park lamps, or a warning light illuminated on the dashboard.

2. What can cause the OBDII code B165E to trigger?

The B165E code is triggered when the powertrain control module (PCM) detects an open circuit in the park lamp control circuit, often caused by a damaged wiring harness, faulty park lamp bulb, or a malfunctioning switch.

3. How serious is the OBDII code B165E (Park Lamp Control Circuit Open)?

While code B165E may not affect the drivability of the vehicle, it can compromise the visibility of the vehicle to other drivers, especially in low-light conditions. It is recommended to address this issue promptly.

4. How can I diagnose the OBDII code B165E?

Diagnosing code B165E typically involves visually inspecting the wiring harness, checking the park lamp bulbs for continuity, and using a multimeter to test for voltage at various points in the circuit.

5. Can I repair the OBDII code B165E myself?

If you have experience with automotive electrical systems, you may be able to repair code B165E yourself by identifying and repairing the open circuit in the park lamp control circuit. However, if you are unsure, it is recommended to seek professional help.

6. Will driving with the OBDII code B165E cause further damage?

Continuing to drive with code B165E may not cause further damage to the vehicle, but it can pose a safety risk due to decreased visibility, especially at night or in adverse weather conditions.

7. How much does it cost to repair the OBDII code B165E?

The cost of repairing code B165E can vary depending on the underlying cause of the issue, the extent of the repair needed, and whether you choose to DIY or seek professional help. Costs may include parts and labor.

8. Can the OBDII code B165E be intermittent?

Yes, the B165E code can be intermittent, meaning the issue causing the open circuit in the park lamp control circuit may come and go. It is important to address the problem even if it temporarily resolves itself.

9. Are there any preventive measures to avoid OBDII code B165E in the future?

To prevent OBDII code B165E from occurring in the future, regularly inspecting the park lamp circuit, replacing bulbs as needed, and ensuring all wiring connections are secure can help maintain the integrity of the system.

10. How long does it take to repair the OBDII code B165E?

The repair time for code B165E can vary depending on the cause of the issue, the accessibility of the components, and your level of experience. Simple fixes may take less than an hour, while more complex repairs could take longer.

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