OBD Guide

C05F8

4WD/AWD Range Actuator Control Circuit High

C05F8 is an OBD-II diagnostic trouble code meaning: 4WD/AWD Range Actuator Control Circuit High. Common causes: short circuit to positive in the control circuit, range actuator malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Inability to switch all-wheel drive modes
  • Check engine light is on
  • Activating transmission emergency mode

Causes

  • Short circuit to positive in the control circuit
  • Range actuator malfunction
  • Wiring harness damage
  • Problems with the four-wheel drive control unit
  • Contact corrosion

How to Fix

  1. Check the integrity of the wiring harness to the actuator
  2. Measure actuator resistance
  3. Check the voltage at the actuator connector
  4. Inspect contacts for corrosion
  5. If necessary, replace the actuator or repair the wiring

Related codes

Error C05F8 by Vehicle Brand

FAQ

What does the C05F8 code mean?

C05F8 is an OBD-II diagnostic trouble code that indicates: 4WD/AWD Range Actuator Control Circuit High

What causes a C05F8 error code?

The most common causes of C05F8 include: Short circuit to positive in the control circuit; Range actuator malfunction; Wiring harness damage; Problems with the four-wheel drive control unit.

How do I fix a C05F8 diagnostic trouble code?

To fix C05F8: Check the integrity of the wiring harness to the actuator. Measure actuator resistance. Check the voltage at the actuator connector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C05F8?

Limited driving only, diagnose soon

How much does it cost to fix C05F8?

The estimated repair cost for C05F8 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat