C00A2Driveline Control Module Power Transfer Unit Control Circuit Driver
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- The power transfer unit sits at the front transaxle of a front-based AWD car and, on disconnecting systems, can uncouple the propshaft. AAM's EcoTrac, introduced on the 2014 Jeep Cherokee, separates the driveline at both the PTU and the rear module under command of its own control unit. In an AAM patent a power-operated actuator, for example a solenoid, moves the PTU mode collar only after the rear clutch has brought the propshaft up to speed; a Linamar patent energises a PTU coil with brief pulses of about 3 to 4 A and tracks the sleeve with a Hall or linear sensor. C00A2 means the output stage feeding that actuator reports a fault, such as overcurrent, short, open load or overtemperature, the classes that automotive driver ICs like TI's DRV8873-Q1 flag. No manufacturer publishes a C00A2 case.
- What you may notice
- AWD unavailable, vehicle stays in front-wheel drive
- AWD warning lamp or message
- Likely causes
- LikelyShort to ground or battery on the PTU actuator circuit
- PossiblePTU actuator coil or motor open or internally shorted
- RareDamaged output stage inside the driveline module
- Repair
- Hard · Usually a job for a workshop.Typical cost: €80 – €1,300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.