OBD Guide

C05F9

4WD/AWD Range Actuator Temperature Too High

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

Symptoms

  • Drive mode switching with delay or failure
  • Check engine light comes on
  • Reduced all-wheel drive efficiency
  • Unusual noises from the transfer case

Causes

  • All-wheel drive system overload
  • Actuator malfunction
  • Actuator cooling problems
  • Contamination or lack of lubrication
  • Problems with wiring or wiring harness

How to Fix

  1. Check the level and condition of the lubricant in the transfer case
  2. Inspect the actuator for mechanical damage
  3. Check electrical wiring and connections
  4. Replace the actuator if necessary
  5. Reset the error and check the system operation

Related codes

Error C05F9 by Vehicle Brand