C00A8
4WD/AWD Transfer Case Unit Actuator Position Sensor B
C00A8 is an OBD-II diagnostic trouble code meaning: 4WD/AWD Transfer Case Unit Actuator Position Sensor B. Common causes: rdm position sensor malfunction, open/short circuit in wiring harness. Estimated repair cost: $167–444.
Symptoms
- 4WD/AWD lamp on dashboard
- Incorrect switching of all-wheel drive modes
- Locking the transfer case in one position
- Reduced off-road performance
Causes
- RDM position sensor malfunction
- Open/short circuit in wiring harness
- Contact contamination/oxidation
- Mechanical damage to the actuator
- Problems with ECU software
How to Fix
- Diagnosis of real sensor values via scanner
- Checking the integrity of the wiring harness and contacts
- Replacing the position sensor (often requires disassembling the RDM assembly)
- Calibrating the mechanism position after replacement
- Error reset and test drive
Related codes
Error C00A8 by Vehicle Brand
FAQ
What does the C00A8 code mean?
C00A8 is an OBD-II diagnostic trouble code that indicates: 4WD/AWD Transfer Case Unit Actuator Position Sensor B
What causes a C00A8 error code?
The most common causes of C00A8 include: RDM position sensor malfunction; Open/short circuit in wiring harness; Contact contamination/oxidation; Mechanical damage to the actuator.
How do I fix a C00A8 diagnostic trouble code?
To fix C00A8: Diagnosis of real sensor values via scanner. Checking the integrity of the wiring harness and contacts. Replacing the position sensor (often requires disassembling the RDM assembly). For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C00A8?
Limited driving only, diagnose soon
How much does it cost to fix C00A8?
The estimated repair cost for C00A8 is $167–444. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat