VEHICLE MOVES IN P POSITION, OR PARKING GEAR DOES NOT DISENGAGE WHEN P IS DISENGAGED [SHIFT-BY-WIRE SYSTEM]

id0503m2100600

Outline

Description	•  The vehicle moves even though the vehicle is stopped on a slope and then the selector lever is shifted to the P position. •  The vehicle does not accelerate from a standstill even though the selector lever is shifted to a position other than P and then the accelerator pedal is depressed.
Possible cause	•  Parking lock actuator initial learning not implemented •  Parking lock actuator connector or terminal malfunction •  Short to ground or open circuit in parking lock actuator power supply circuit •  Parking lock actuator initial learning failure ―  Parking lock actuator malfunction ―  EV transaxle internal malfunction •  EV transaxle internal malfunction •  Parking lock actuator malfunction

Diagnostic Procedure

Step	Inspection	Results	Action
1	VERIFY IMPLEMENTATION STATUS OF PARKING LOCK ACTUATOR INITIAL LEARNING •  When implementing the following work, was the parking lock actuator initial learning performed? ―  Parking lock actuator replacement ―  Parking lock actuator removal/installation	Yes	Go to the next step.
		No	Implement the initial learning for the parking lock actuator and perform the repair completion verification. (See PARKING LOCK ACTUATOR INITIALIZATION PROCEDURE [A71M].)
2	VERIFY PARKING LOCK ACTUATOR DTCs •  Perform the DTC inspection for the parking lock actuator. (See DTC INSPECTION.) •  Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PARKING LOCK ACTUATOR].)
		No	Go to the next step.
3	INSPECT PARKING LOCK ACTUATOR CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
4	INSPECT PARKING LOCK ACTUATOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT •  Inspect the applicable circuit for a short to ground and open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
5	INSPECT EV TRANSAXLE INTERNALLY FOR MALFUNCTION •  Perform the following procedure. 1.  Stop the vehicle on a level surface and apply the parking brake securely. 2.  Remove the parking lock actuator. (See PARKING LOCK ACTUATOR REMOVAL/INSTALLATION [A71M].) •  Can the manual shaft be rotated by hand and can the parking lock mechanism be operated? a30zzw00002212	Yes	Replace the parking lot actuator and perform the repair completion verification. (See PARKING LOCK ACTUATOR REMOVAL/INSTALLATION [A71M].)
		No	Replace the EV transaxle and perform the repair completion verification (See EV TRANSAXLE REMOVAL/INSTALLATION [A71M].)
6	VERIFY IF MALFUNCTION CAUSE IS CORRECTED •  Install/connect the part removed/disconnected during the troubleshooting procedure. •  Has the malfunction symptom been eliminated?	Yes	Complete the symptom troubleshooting. Explain repair contents to customer.
		No	Refer to the CAN (controller area network) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) If the CAN communication is normal, perform the diagnosis from Step 1.