OBD Guide
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C14A4

Output Circuit Temperature High / Over Current

C14A4 is an OBD-II diagnostic trouble code meaning: Output Circuit Temperature High / Over Current. Common causes: short circuit in wiring harness (harness), squib malfunction. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • The airbag light is on
  • Restraint system disabled
  • Error persists after reset

Causes

  • Short circuit in wiring harness (harness)
  • Squib malfunction
  • Damage to the solenoid valve
  • Output circuit overheating
  • Problems with the airbag control unit

How to Fix

  1. Check wiring harness for damage and short circuit
  2. Diagnose squibs and pretensioners
  3. Check resistance and continuity
  4. Replace faulty components
  5. Reset the error and check the system

Related codes

B00A0B00A1B0091

FAQ

What does the C14A4 code mean?

C14A4 is an OBD-II diagnostic trouble code that indicates: Output Circuit Temperature High / Over Current

What causes a C14A4 error code?

The most common causes of C14A4 include: Short circuit in wiring harness (harness); Squib malfunction; Damage to the solenoid valve; Output circuit overheating.

How do I fix a C14A4 diagnostic trouble code?

To fix C14A4: Check wiring harness for damage and short circuit. Diagnose squibs and pretensioners. Check resistance and continuity. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C14A4?

Do not drive — repair immediately

How much does it cost to fix C14A4?

The estimated repair cost for C14A4 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat