OBD Guide

B1250

Combination Switch Control Unit

B1250 is an OBD-II diagnostic trouble code meaning: Combination Switch Control Unit. Common causes: open or shorted wiring harness, control unit malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Malfunction of some switches on the steering column
  • ים되지 headlights or turn signals
  • Malfunctions of the wipers
  • The check engine light or other warning lights come on

Causes

  • Open or shorted wiring harness
  • Control unit malfunction
  • Oxidation of switch contacts
  • Control unit power supply problems

How to Fix

  1. Check the wiring harness for opens and shorts
  2. Clean switch contacts from oxidation
  3. Dicology control unit supply voltage
  4. Replacing the control unit if necessary

Related codes

FAQ

What does the B1250 code mean?

B1250 is an OBD-II diagnostic trouble code that indicates: Combination Switch Control Unit

What causes a B1250 error code?

The most common causes of B1250 include: Open or shorted wiring harness; Control unit malfunction; Oxidation of switch contacts; Control unit power supply problems.

How do I fix a B1250 diagnostic trouble code?

To fix B1250: Check the wiring harness for opens and shorts. Clean switch contacts from oxidation. Dicology control unit supply voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1250?

Limited driving only, diagnose soon

How much does it cost to fix B1250?

The estimated repair cost for B1250 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat