Engine-CodesGeneric – B3802

B3802 Code - Park Lamps Request Circuit

Quick Answer

The B3802 diagnostic trouble code (DTC) refers to the Park Lamps Request Circuit in the vehicle. Common causes include Faulty park lamp bulbs, Wiring harness damage or corrosion, Defective park lamp relay. 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
B3802 indicates Park Lamps Request Circuit.
Common causes
Common causes include Faulty park lamp bulbs, Wiring harness damage or corrosion, Defective park lamp relay.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code B3802 Description

The B3802 diagnostic trouble code (DTC) refers to the Park Lamps Request Circuit in the vehicle. This code indicates a problem with the control circuit that operates the park lamps, which are the lights on the exterior of the vehicle that provide visibility and safety when driving in low-light conditions. The park lamps are typically activated when the vehicle's headlights are turned on, and they help make the vehicle more visible to other drivers on the road.

OBDII Code B3802 - Park Lamps Request Circuit
B3802 Code - Park Lamps Request Circuit

Common Causes of B3802

  1. Faulty park lamp bulbs
  2. Wiring harness damage or corrosion
  3. Defective park lamp relay
  4. Faulty control module
  5. Poor electrical connections

Symptoms of B3802

  1. Park lamps not turning on when the headlights are activated
  2. Flickering park lamps
  3. Park lamps staying on even when the vehicle is turned off
  4. Dashboard warning light indicating a lighting system issue

How to Fix B3802

  1. Begin by inspecting the park lamp bulbs to ensure they are not burnt out. Replace any faulty bulbs.
  2. Check the wiring harness for any damage or corrosion. Repair or replace any damaged wiring.
  3. Test the park lamp relay to determine if it is functioning correctly. Replace if necessary.
  4. Use a diagnostic tool to check the control module for any faults or errors. Reset or replace the control module as needed.
  5. Verify and clean all electrical connections to ensure a secure and proper connection.

Cost to Fix B3802

The cost of repairing the Park Lamps Request Circuit issue can vary depending on the specific cause of the problem and the make and model of the vehicle. On average, the repair costs for this issue can range from $100 to $300, including parts and labor. However, it is important to note that diagnostic time and labor rates at auto repair shops can vary, so it is advisable to obtain a detailed estimate from a trusted mechanic before proceeding with the repair. Factors such as the location of the repair shop, the vehicle's complexity, and the availability of parts can also affect the overall cost of the repair.

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Code B3802 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 B3802 Code

1. What are the common symptoms of OBDII code B3802 (Park Lamps Request Circuit)?

- The common symptoms of code B3802 may include inoperative park lamps, dim or flickering park lamps, or a warning light on the dashboard.

2. What are the possible causes of OBDII code B3802 (Park Lamps Request Circuit)?

- The possible causes of code B3802 can be a faulty park lamp switch, damaged wiring or connectors in the park lamp circuit, or a malfunctioning body control module.

3. How can I diagnose OBDII code B3802 (Park Lamps Request Circuit)?

- Diagnosis of code B3802 involves inspecting the park lamp switch, checking the wiring and connectors for any damage, and using a diagnostic scanner to communicate with the body control module.

4. Can I repair OBDII code B3802 (Park Lamps Request Circuit) on my own?

- While basic troubleshooting like checking the park lamp switch and inspecting wiring can be done by DIY enthusiasts, diagnosing and repairing complex issues with the body control module may require professional help.

5. Are there any tips for fixing OBDII code B3802 (Park Lamps Request Circuit)?

- Some tips for resolving code B3802 include ensuring all connections are secure, replacing any damaged wiring, and resetting the body control module after repairs are made.

6. Can OBDII code B3802 (Park Lamps Request Circuit) cause other issues with my vehicle?

- While the immediate impact may be related to the park lamps, unresolved code B3802 can potentially affect other lighting systems or lead to electrical issues in the vehicle.

7. How urgent is it to address OBDII code B3802 (Park Lamps Request Circuit)?

- It is recommended to address code B3802 promptly to ensure proper functioning of the park lamps for safety reasons and to prevent any further electrical problems in the vehicle.

8. Will resetting the OBDII system clear code B3802 (Park Lamps Request Circuit)?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing B3802 is not fixed, the code is likely to reappear upon detection of the fault.

9. Can extreme weather conditions trigger OBDII code B3802 (Park Lamps Request Circuit)?

- Yes, extreme weather conditions like heavy rain or snow can potentially damage the park lamp circuit, leading to the triggering of code B3802.

10. Is it necessary to replace the park lamp switch to resolve OBDII code B3802 (Park Lamps Request Circuit)?

- Depending on the diagnostic results, replacing the park lamp switch may be necessary to fix code B3802, especially if the switch is found to be faulty during inspection.

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