C2304 – Open Or Short Circuit In U Phase

C2304 Possible Symptoms

Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)

C2304 Possible Causes

Faulty Auxiliary Battery,Faulty Transmission Control ECU Assembly,Faulty Shift Control Actuator,Shift Control Actuator harness is open or shorted,Shift Control Actuator circuit poor electrical connection

C2304 Description

The Shift Control Actuator consists of the parking lock motor and the rotation angle sensor. The Transmission Control ECU receives a P position switch signal from the Power Management Control ECU (HV CPU) and activates the parking lock motor by controlling current, causing the parking lock mechanism to switch. The Transmission Control ECU outputs these DTCs when it detects a malfunction in the parking lock motor system.