B1250 Code - Combination Switch Control Unit
Quick Answer
The Multiplex Control Unit Module (MICU) monitors the Combination Switch Control Unit. Common causes include Faulty Combination Switch Control Unit, Combination Switch Control Unit harness is open or shorted, Combination Switch Control Unit circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- B1250 indicates Combination Switch Control Unit.
- Common causes
- Common causes include Faulty Combination Switch Control Unit, Combination Switch Control Unit harness is open or shorted, Combination Switch Control Unit circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code B1250 Description
What are the Possible Causes of the DTC B1250?
- Faulty Combination Switch Control Unit
- Combination Switch Control Unit harness is open or shorted
- Combination Switch Control Unit circuit poor electrical connection
How to Fix the DTC B1250?
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 B1250 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 B1250 code?
Need more information on how to fix the B1250 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1250 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B1250 Acura — Combination Switch Control Unit
- B1250 Honda — Combination Switch Control Unit
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.
Discuss the causes and fixes for B1250 OBDII Code
Code B1250 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
