MechanicDB
Fault Family System: Powertrain (P-Codes) 9 SAE Codes

Clutch Actuator Control Circuit

Diagnostic & Technical Explanation
Code P0900 (Clutch A Actuator Control Circuit/Open) sets when the TCM detects an open circuit, out-of-range voltage, or an implausible signal while driving one of the two clutch actuators on a dual-clutch transmission (DCT). Causes are a failed actuator motor/solenoid, hydraulic air in the actuator circuit, or damaged control wiring at the mechatronic unit connector.

These 9 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 9 times.

Codes in this family (9)

CodeDefinitionRepair coverage
P0900Clutch A Actuator Control Circuit/Open3 ranked fixes
P0901Clutch A Actuator Control Circuit Range/Performance3 ranked fixes
P0902Clutch A Actuator Control Circuit Low3 ranked fixes
P0903Clutch A Actuator Control Circuit High3 ranked fixes
P090AClutch B Actuator Control Circuit/Open3 ranked fixes
P090BClutch B Actuator Control Circuit Performance3 ranked fixes
P090CClutch B Actuator Control Circuit Low3 ranked fixes
P090DClutch B Actuator Control Circuit High3 ranked fixes
P2785Clutch Actuator Temperature Too High3 ranked fixes

What this page does not show

This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here: