OBD Guide
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B15C6

Ignition Switch Signal Malfunction

B15C6 is an OBD-II diagnostic trouble code meaning: Ignition Switch Signal Malfunction. Common causes: faulty ignition switch, damaged wiring. Estimated repair cost: $56–167.

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

Symptoms

  • Problems starting the engine
  • The engine stalls while driving
  • Unstable engine operation
  • Check Engine light comes on

Causes

  • Faulty ignition switch
  • Damaged wiring
  • Problems with the engine control unit
  • Short circuit in the circuit

How to Fix

  1. Check the ignition switch for damage
  2. Check the integrity of wiring and connections
  3. Check the engine control unit for errors
  4. Replace faulty components

Related codes

B15C5B15C7P0560

FAQ

What does the B15C6 code mean?

B15C6 is an OBD-II diagnostic trouble code that indicates: Ignition Switch Signal Malfunction

What causes a B15C6 error code?

The most common causes of B15C6 include: Faulty ignition switch; Damaged wiring; Problems with the engine control unit; Short circuit in the circuit.

How do I fix a B15C6 diagnostic trouble code?

To fix B15C6: Check the ignition switch for damage. Check the integrity of wiring and connections. Check the engine control unit for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B15C6?

Limited driving only, diagnose soon

How much does it cost to fix B15C6?

The estimated repair cost for B15C6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat