OBD Guide

C00A5

Driveline Control Module Transfer Case Unit Control Circuit Driver

C00A5 is an OBD-II diagnostic trouble code meaning: Driveline Control Module Transfer Case Unit Control Circuit Driver. Common causes: open or short circuit in wiring harness, corrosion of module connector contacts. Estimated repair cost: $56–278.

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

FAQ

What does the C00A5 code mean?

C00A5 is an OBD-II diagnostic trouble code that indicates: Driveline Control Module Transfer Case Unit Control Circuit Driver

What causes a C00A5 error code?

The most common causes of C00A5 include: Open or short circuit in wiring harness; Corrosion of module connector contacts; Transfer case module malfunction; Control circuit fuse blown.

How do I fix a C00A5 diagnostic trouble code?

To fix C00A5: Check the integrity of the wiring harness and contact connections. Check fuses associated with the module. Clean the connector contacts from corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C00A5?

Limited driving only, diagnose soon

How much does it cost to fix C00A5?

The estimated repair cost for C00A5 is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat