Inspection Procedure

1. Remove the P CON relay from the engine room R/B and J/B.
2. Measure the resistance according to the value (s) in the table below.

   Standard: 

   TRANSAXLE PARKING LOCK CONTROL RELAY (P CON RELAY) SPECIFIED CONDITIONS
   
   

   Tester Connection	Specified Condition
   3 - 5	10 kΩ or higher
   3 - 5	Below 1Ω (When battery voltage is applied to terminals 1 and 2)

   Fig 1: Inspecting Transaxle Parking Lock Control Relay (P CON Relay)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPLACE TRANSAXLE PARKING LOCK CONTROL RELAY 
2. OK: GO TO NEXT STEP 

1. Disconnect the T4 connector from the transmission control ECU assy.
2. Measure the voltage according to the value (s) in the table below.

Standard: 

Fig 2: Checking Harness And Connector (Transmission Control ECU Assy - Transaxle Parking Lock Control Relay)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
2. OK: GO TO NEXT STEP 

1. Measure the voltage according to the value (s) in the table below.

Standard: 

Fig 3: Checking Harness And Connector (Transmission Control ECU Assy - Shift Control Actuator Assy)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
2. OK: GO TO NEXT STEP 

1. Disconnect the S1 connector from the shift control actuator assy.
2. Measure the voltage according to the value (s) in the table below.

Standard: 

Fig 4: Checking Harness And Connector (Shift Control Actuator Assy - Transaxle Parking Lock Control Relay)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
2. OK: GO TO NEXT STEP 

REPLACE TRANSMISSION CONTROL ECU ASSY