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Engine-Codes – Generic – B1250

B1250 Code - Combination Switch Control Unit

Quick Answer

The B1250 diagnostic trouble code (DTC) refers to a fault in the Combination Switch Control Unit in the vehicle. Common causes include Electrical wiring issues, Faulty Combination Switch Control Unit, Water damage or corrosion. 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
B1250 indicates Combination Switch Control Unit.
Common causes
Common causes include Electrical wiring issues, Faulty Combination Switch Control Unit, Water damage or corrosion.
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 17, 2024
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Code B1250 Description

The B1250 diagnostic trouble code (DTC) refers to a fault in the Combination Switch Control Unit in the vehicle. This unit is responsible for controlling various functions such as turn signals, headlights, windshield wipers, and other related systems. When this code is triggered, it indicates that there is a malfunction or failure in the control unit, which can lead to issues with the vehicle's overall performance and safety.

OBDII Code B1250 - Combination Switch Control Unit
B1250 Code - Combination Switch Control Unit

Common Causes of B1250

  1. Electrical wiring issues
  2. Faulty Combination Switch Control Unit
  3. Water damage or corrosion
  4. Loose connections or poor contact
  5. Wear and tear over time

Symptoms of B1250

  1. Non-functioning turn signals
  2. Inoperative headlights or high beams
  3. Malfunctioning windshield wipers
  4. Failure of other control functions on the steering column
  5. Warning light illuminated on the dashboard

How to Fix B1250

  1. Diagnose the specific cause of the issue using a diagnostic scanner.
  2. Inspect the Combination Switch Control Unit for any visible damage or signs of wear.
  3. Check the electrical connections and wiring for any loose connections or corrosion.
  4. Replace the faulty Combination Switch Control Unit if necessary.
  5. Clear the DTC and test the functionality of the control unit to ensure proper operation.

Cost to Fix B1250

The cost of repairing a Combination Switch Control Unit can vary depending on the make and model of the vehicle, the extent of the damage, and the labor rates at the auto repair shop. On average, the repair costs for this issue can range from $150 to $400, including parts and labor. It's important to consider that additional diagnostic time and labor charges may apply, and rates can differ based on location and the specific circumstances of the repair. To obtain an accurate estimate, it is recommended to consult with a qualified mechanic or auto repair shop in your area.

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Code B1250 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 B1250 Code

1. What does the OBDII code B1250 mean?

B1250 refers to a fault in the combination switch control unit, which typically manages functions like headlights, turn signals, and wipers.

2. What are common symptoms of the B1250 code?

Symptoms may include malfunctioning headlights, turn signals, wipers not responding, or intermittent operation of these systems.

3. What causes the B1250 code to appear?

Common causes include a faulty combination switch, damaged wiring or connectors, or a malfunction in the control module itself.

4. Can a loose connection trigger the B1250 code?

Yes, loose or corroded electrical connections in the combination switch circuit can trigger this code.

5. How is the B1250 code diagnosed?

A technician will inspect the combination switch, check for damaged wiring or connectors, and use a scan tool to confirm the fault and test the related circuits.

6. Can I still drive my car with the B1250 code active?

While the vehicle may still be drivable, safety functions like turn signals or headlights may not work properly, making it unsafe to drive in certain conditions.

7. How do you fix the B1250 code?

Repairs may include replacing the combination switch, repairing or replacing damaged wiring, or reprogramming or replacing the control unit if necessary.

8. Is the B1250 code expensive to fix?

Repair costs depend on the specific issue, but replacing a combination switch typically costs between $150 and $400, including labor.

9. Can I fix the B1250 code myself?

If you're comfortable working with electrical systems, you can inspect and replace the combination switch or check for damaged wiring. However, advanced diagnostics may require professional tools.

10. Does the B1250 code require a system reset after repair?

Yes, after addressing the fault, the code may need to be cleared using an OBDII scanner to ensure the issue is resolved.

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