OBD Guide

C05F8

4WD/AWD Range Actuator Control Circuit High

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