AutoCodes – Generic – B2507

B2507 Code - Right Lamp High Beam Circuit Failure

Quick Answer

The Smart Junction Box (SJB) sends reference signals to the headlamp switch through circuits. Common causes include Faulty Right Lamp High Beam, Right Lamp High Beam harness is open or shorted, Right Lamp High Beam 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: B2507 indicates Right Lamp High Beam Circuit Failure.
Common causes: Common causes include Faulty Right Lamp High Beam, Right Lamp High Beam harness is open or shorted, Right Lamp High Beam 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.

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Code Popularity 5,837

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2507 Description

The Smart Junction Box (SJB) sends reference signals to the headlamp switch through circuits. When the headlamp switch is placed in the HEADLAMPS ON position, the voltage signal is routed to ground through the circuit. If the SJB detects a fault with the headlamp switch inputs, the SJB turns the exterior lamps on by default. When the SJB detects the headlamp switch in the HEADLAMPS ON position and the multifunction switch in the LOW BEAM position, the SJB sends voltage through circuits to the low beam headlamps. When the SJB detects the headlamp switch in the HEADLAMPS ON position and the multifunction switch in the HIGH BEAM position, the SJB sends voltage through circuits to the high beam headlamps. The SJB sends a reference signal to the multifunction switch through circuits. When the multifunction switch is placed in the FLASH-TO-PASS or HIGH BEAM position, the voltage signal is routed to ground. When the SJB detects a request for the flash-to-pass, the SJB sends voltage to the high beam headlamps. The OBDII codes when the SJB detects a short to voltage from the Right (RH) high beam voltage supply circuit.

OBDII Code B2507 - Right Lamp High Beam Circuit Failure - AutoCodes.com — B2507 Code - Right Lamp High Beam Circuit Failure

What does this mean?

What are the Possible Causes of the DTC B2507?

Faulty Right Lamp High Beam
Right Lamp High Beam harness is open or shorted
Right Lamp High Beam circuit poor electrical connection
Faulty Headlamp Switch
Faulty Smart Junction Box (SJB)

How to Fix the DTC B2507?

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 B2507 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 B2507 code?

Need more information on how to fix the B2507 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2507 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2507 Chrysler — Left Power Sliding Door Latch Release Sector Switch Performance
B2507 Dodge — Left Power Sliding Door Latch Release Sector Switch Performance
B2507 Ford — Right Lamp High Beam Circuit Failure
B2507 Lexus — Short In Luggage Door Drive Motor Left Circuit
B2507 Lincoln — Right Lamp High Beam Circuit Failure
B2507 Mercury — Right Lamp High Beam Circuit Failure
B2507 RAM — Left Power Sliding Door Latch Release Sector Switch Performance

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 B2507 Code

1. What are the common symptoms of OBDII code B2507 (Right Lamp High Beam Circuit Failure)?

- The common symptoms include the high beam on the right lamp not functioning properly or not turning on at all.

2. What are the possible causes of OBDII code B2507?

- The code B2507 is typically caused by a faulty high beam bulb, a wiring issue in the high beam circuit, or a problem with the high beam switch.

3. How can I diagnose the cause of OBDII code B2507?

- To diagnose the issue, start by checking the high beam bulb on the right lamp. If the bulb is in good condition, then inspect the wiring and connections in the high beam circuit and test the high beam switch for proper functionality.

4. Can a loose connection cause OBDII code B2507 to trigger?

- Yes, a loose or corroded connection in the high beam circuit can cause OBDII code B2507 to trigger, as it can disrupt the flow of electricity to the right high beam lamp.

5. Is it safe to continue driving with OBDII code B2507 present?

- It is not recommended to drive with OBDII code B2507 present, as it indicates a malfunction in the high beam circuit that can affect visibility at night and compromise road safety.

6. How can I repair OBDII code B2507 on my own?

- If you are comfortable working on your vehicle, you can attempt to replace the right high beam bulb, check and repair any faulty wiring, or replace the high beam switch to fix the issue.

7. Do I need specialized tools to repair OBDII code B2507?

- Basic automotive tools such as a screwdriver, pliers, and a multimeter for testing electrical connections may be needed to diagnose and repair OBDII code B2507.

8. Can extreme weather conditions trigger OBDII code B2507?

- Yes, extreme weather conditions such as water exposure or extreme temperatures can cause corrosion or damage to the high beam circuit components, leading to OBDII code B2507.

9. Will OBDII code B2507 cause my vehicle to fail an emissions test?

- OBDII code B2507 is related to the lighting system and should not cause your vehicle to fail an emissions test, but it should still be addressed to ensure proper functionality of the high beam circuit.

10. How much can I expect to pay to have OBDII code B2507 repaired at a mechanic?

- The cost of repairing OBDII code B2507 can vary depending on the cause of the issue, but it typically ranges from $100 to $300, including parts and labor.