OBD Guide
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C1456

AWD Clutch Power Control Circuit Low

C1456 is an OBD-II diagnostic trouble code meaning: AWD Clutch Power Control Circuit Low. Common causes: wiring harness damage, malfunction of the solenoid valve (solenoid). Estimated repair cost: $111–333.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$111–333 (est.)

Symptoms

  • Unstable all-wheel drive operation
  • AWD warning light comes on
  • Reduced all-wheel drive efficiency

Causes

  • Wiring harness damage
  • Malfunction of the solenoid valve (solenoid)
  • Problems with the control unit

How to Fix

  1. Check wiring harness for damage
  2. Check the solenoid valve (solenoid)
  3. Check control unit

Related codes

C1455C1457

FAQ

What does the C1456 code mean?

C1456 is an OBD-II diagnostic trouble code that indicates: AWD Clutch Power Control Circuit Low

What causes a C1456 error code?

The most common causes of C1456 include: Wiring harness damage; Malfunction of the solenoid valve (solenoid); Problems with the control unit.

How do I fix a C1456 diagnostic trouble code?

To fix C1456: Check wiring harness for damage. Check the solenoid valve (solenoid). Check control unit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1456?

Limited driving only, diagnose soon

How much does it cost to fix C1456?

The estimated repair cost for C1456 is $111–333. Actual cost depends on your vehicle, location, and labor rates.

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