Inspection Procedure

HINT:

According to the Data List displayed by Techstream, you can read the value of the switch, sensor, actuator and so on without removing any parts. Reading the Data List as the first step of troubleshooting is one method to save diagnostic time.

NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

READ DATA LIST

Turn the ignition switch off.
Connect Techstream to the DLC3.
Turn the ignition switch on (IG).
Turn on the tester.
Select the items: "Powertrain / Engine / Data List".

According to the display on the tester, read the "Data List".

DATA LIST

Item	Measurement Item / Range (Display)	Normal Condition	Diagnostic Note
PNP SW [NSW]	PNP SW Status / ON or OFF	Shift lever position is; P and N: ON Except P or N: OFF	When the shift lever position displayed on Techstream differs from the actual position, adjustment of the PNP switch or the shift cable may be incorrect.
REVERSE	PNP SW Status / ON or OFF	Shift lever position is; R: ON Except R: OFF	↑
DRIVE	PNP SW Status / ON or OFF	Shift lever position is; D and S: ON Except D or S: OFF	↑

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

Disconnect the park / neutral position switch connector.
Turn the ignition switch on (IG).

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

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
1 - Body ground	10 to 14 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 1: Identifying Park / Neutral Position Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

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

Disconnect the park/neutral position switch connector.
Remove the ST relay from the engine room relay block.

Measure the resistance between the terminals.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
L (B13-9) - ST relay terminal 1	Below 1 Ω

Reconnect the park/neutral position switch connector.
Install the ST relay.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 2: Identifying Park/Neutral Position Switch Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

INSPECT ST RELAY

Remove the ST relay from the engine room R/B.

Measure the resistance between the terminals.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
3 - 5	10 kΩ or higher
3 - 5	Below 1 Ω Apply battery voltage between terminals 1 and 2

Install the ST relay.

NG: REPLACE STARTER RELAY

Fig 3: Identifying Park/Neutral Position Switch Connector (ST Relay)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)

Remove the ST relay from the engine room R/B.

Measure the resistance between the terminals

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
ST relay terminal 2 - Body ground	Below 1 Ω

Install the ST relay.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 4: Identifying ST Relay Terminal From Engine Room R/B

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

INSPECT PARK / NEUTRAL POSITION SWITCH ASSEMBLY

Measure the resistance according to the value(s) in the table below when the shift lever is moved to each position.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Shift Position	Tester Connection	Specified Condition
P	1 - 3 and 4 - 9	Below 1 Ω
Except P	1 - 3 and 4 - 9	10 kΩ or higher
R	1 - 2	Below 1 Ω
Except R	1 - 2	10 kΩ or higher
N	1 - 8 and 4 - 9	Below 1 Ω
Except N	1 - 8 and 4 - 9	10 kΩ or higher
D, S, "+" and "-"	1 -7	Below 1 Ω
Except D, S, "+" and "-"	1 -7	10 kΩ or higher

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

Fig 5: Identifying Park / Neutral Position Switch Assembly Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK HARNESS AND CONNECTOR

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

Turn the ignition switch on (IG), and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

Fig 6: Identifying ECM Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Shift Position	Tester Connection	Specified Condition
P	B50-24 (P) - Body ground	10 to 14 V
Except P	B50-24 (P) - Body ground	Below 1 V
N	B50-27 (N) - Body ground	10 to 14 V
Except N	B50-27 (N) - Body ground	Below 1 V
R	B50-25 (R) - Body ground	10 to 14 V*
Except R	B50-25 (R) - Body ground	Below 1 V
D and S	B50-26 (D) - Body ground	10 to 14 V
Except D and S	B50-26 (D) - Body ground	Below 1 V
S, "+1' and "-"	A55-25 (S) - Body ground	10 to 14 V
Except S, "+" and "-"	A55-25 (S) - Body ground	Below 1 V
HINT: *: The voltage will drop slightly due to lighting up of the back up light.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR

Disconnect the transmission control switch connector of the shift lock control unit assembly.
Turn the ignition switch on (IG).

Measure the voltage between the terminals.

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
3 - Body ground	10 to 14 V

Reconnect the transmission control switch connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 7: Identifying Transmission Control Switch Connector

OK: Go to next step

INSPECT TRANSMISSION FLOOR SHIFT ASSEMBLY (TRANSMISSION CONTROL SWITCH)
1. Inspect the transmission control switch (See INSPECTION ).
NG: REPLACE TRANSMISSION FLOOR SHIFT ASSEMBLY (See SHIFT LEVER )

OK: Go to next step

CHECK HARNESS AND CONNECTOR

Connect the transmission control switch connector of the shift lock control unit assembly.

Turn the ignition switch on (IG), and measure the voltage according to the value(s) in the table below when the shift lever is moved to each position.

Fig 8: Identifying ECM Connector

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Shift Position	Tester Connection	Specified Condition
P	B50-24 (P) - Body ground	10 to 14 V
Except P	↑	Below 1 V
N	B50-27 (N) - Body ground	10 to 14 V
Except N	↑	Below 1 V
R	B50-25 (R) - Body ground	10 to 14 V*
Except R	↑	Below 1 V
D and S	B50-26 (D) - Body ground	10 to 14 V
Except D and S	↑	Below 1 V
S, "+" and "-"	A55-25 (S) - Body ground	10 to 14 V
Except S, "+" and "-"	↑	Below 1 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

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

Disconnect the ECM connectors.
Turn the ignition switch off.

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

Standard resistance (Check for open)

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
B (B13-4) - NSW(B50-62)	Below 1 Ω

Standard resistance (Check for short)

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
B (B13-4) or NSW (B50-62) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 9: Identifying Park/Neutral Position Switch And ECM Connector

OK : REPLACE ECM (See ECM )