Inspection Procedure

READ VALUE OF OBD II SCAN TOOL OR HAND-HELD TESTER
1. Warm up the engine.
2. Turn the ignition switch OFF.
3. Connect the OBD II scan tool or hand-held tester to the DLC3.
4. Turn the ignition switch ON and push the OBD II scan tool or hand-held tester main SW ON.
5. Shift the shift lever to the P, R, N, 2 and L positions, select the item "PNP SW (NSW)", "REVERSE", "2ND" and "LOW" in the DATALIST and read its value displayed on the OBD II scan tool or hand-held tester.
NOTE: The values given below for "Normal Condition" are representative values, so a vehicle may still be normal even if its value differs from those listed here. Do not depend solely on the "Normal Condition" here when deciding whether or not the part is faulty.

Fig 1: OBDII Scan Tool Normal Condition Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: CHECK AND REPLACE ECM (See TESTING PROCEDURE )

NG

INSPECT PARK/NEUTRAL POSITION SWITCH ASSY

Fig 2: Inspecting Park/Neutral Position Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the park/neutral position switch connector.

Check continuity between each terminal shown below when the shift lever is moved to each position.

CONTINUITY CHECK

Shift Postion	Terminal No. To Continuity
P	1-3	6-9
R	2-3	.....
N	3-5	6-9
D	3-7	.....
2	3-4	.....
L	3-8	.....

OK:

There is continuity.

NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSY (See PARK/NEUTRAL POSITION SWITCH )

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ECM)

Fig 3: Measuring Voltage Between Terminal R, 2 And L Of ECM And E1

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Connect the park/neutral position switch connector.
Disconnect the ECM connector.

Turn the IG switch ON and measure the voltage between terminals R, 2 and L of ECM and the E1 when the shift lever is shifted to the following position.

OK:

HARNESS AND CONNECTOR CHECK

Shift Postion	Terminal	Voltage (V)
R	R-E1	10-14
2	2-E1	10-14
L	L-E1	10-14

Turn the IG switch OFF and connect the ECM connector.

Turn the IG switch ON and measure the voltage between terminals NSW of ECM and the E1 when the shift lever is shifted to the following position.

OK:

HARNESS AND CONNECTOR CHECK

Shift Postion	Terminal	Voltage (V)
P	NSW-E1	Below 1
N	NSW-E1	Below 1
Except P and N	NSW-E1	10-14

NG: REPAIR OR REPLACE HARNESS (CONNECTOR (See TESTING PROCEDURE )

CHECK AND REPLACE ECM (See TESTING PROCEDURE )