C00A5
Driveline Control Module Transfer Case Unit Control Circuit Driver
Fault on driveline control module driver for transfer case unit.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
Ordered by how often each turns out to be the cause.
- Internal driver faultCommon
Parts involved
- Driveline Module
- Transfer Case
C00A5 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.