Inspection Procedure

1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON and push the hand-held tester main switch ON.
3. Select the item "SHIFT D POS" in the DATA LIST and read its value displayed on the hand-held tester.

OK: 

ON: Shift D Position 

OFF: Shift except D position 

1. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
2. NG: GO TO NEXT STEP 

1. See "INPUT SIGNAL CHECK " .
2. Check the indicator light operation when shifting into except D position.

OK: 

The indicator light goes off when shifting into except D position. 

Fig 1: Identifying Indicator Light Blinking Pattern

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE   ) 
2. NG: GO TO NEXT STEP 

1. Disconnect the park/neutral position switch connector.
2. Check that the continuity exists between terminal 3 (RB) and 7 (DL) of the park/neutral position switch connector.

OK: 

Continuity 

Fig 2: Identifying Park/Neutral Position Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSY 
2. OK: GO TO NEXT STEP

1. Check for open and short circuit in the harness and the connector between terminal D of ECM and the park/neutral position switch (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
2. Check for open and short circuit in the harness and the connector between terminal RB of the park/neutral position switch and the battery (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).

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

   CHECK AND REPLACE ECM