OBD Guide
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C15C6

IG Power Supply Voltage Malfunction

C15C6 is an OBD-II diagnostic trouble code meaning: IG Power Supply Voltage Malfunction. Common causes: damaged wiring harness, poor contacts in the ignition circuit. Estimated repair cost: $56–167.

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

Symptoms

  • Unstable engine operation
  • Problems starting the engine
  • Power Loss
  • Check Engine Light Illuminates

Causes

  • Damaged wiring harness
  • Poor contacts in the ignition circuit
  • Faulty control unit
  • Alternator or battery problems

How to Fix

  1. Check the condition of the wiring harness
  2. Check the contacts in the ignition circuit
  3. Check the voltage on the control unit
  4. Replace damaged components

Related codes

P0351P0352P0353

FAQ

What does the C15C6 code mean?

C15C6 is an OBD-II diagnostic trouble code that indicates: IG Power Supply Voltage Malfunction

What causes a C15C6 error code?

The most common causes of C15C6 include: Damaged wiring harness; Poor contacts in the ignition circuit; Faulty control unit; Alternator or battery problems.

How do I fix a C15C6 diagnostic trouble code?

To fix C15C6: Check the condition of the wiring harness. Check the contacts in the ignition circuit. Check the voltage on the control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C15C6?

Limited driving only, diagnose soon

How much does it cost to fix C15C6?

The estimated repair cost for C15C6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat