OBD Guide

C00A5

Driveline Control Module Transfer Case Unit Control Circuit Driver

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Incorrect all-wheel drive operation
  • Check Engine Light Is On
  • Power Loss
  • Switching between drive modes with delay

Causes

  • Open or short circuit in wiring harness
  • Corrosion of module connector contacts
  • Transfer case module malfunction
  • Control circuit fuse blown
  • Module software failure

How to Fix

  1. Check the integrity of the wiring harness and contact connections
  2. Check fuses associated with the module
  3. Clean the connector contacts from corrosion
  4. Scan the module for software errors
  5. If necessary, replace the transfer case module

Related codes

Error C00A5 by Vehicle Brand