Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit

Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
A343E Automatic Transmission Transaxle. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK PARK/NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)

CHECK HARNESS AND CONNECTOR (NSW TERMINAL VOLTAGE)

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

INSPECT SHIFT LOCK CONTROL ECU

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - SHIFT LOCK CONTROL ECU)

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

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

AUTOMATIC TRANSMISSION SYSTEM (for 2TR-FE) - Park / Neutral Position Switch Circuit


DESCRIPTION

The Park/Neutral Position (PNP) switch detects the shift lever position and sends signals to the ECM.

WIRING DIAGRAM


Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A343E Automatic Transmission Transaxle.Automatic Transmission System (For 2Tr-Fe).Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit


INSPECTION PROCEDURE

1.CHECK PARK/NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A343E Automatic Transmission Transaxle.Automatic Transmission System (For 2Tr-Fe).Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit

  1. Disconnect the park/neutral position switch connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    C26-2 (RB) - Body ground
    		Ignition switch ON
    		11 to 14 V
    C26-2 (RB) - Body ground
    		Ignition switch off
    		Below 1 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Park/Neutral Position Switch)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (NSW TERMINAL VOLTAGE)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A343E Automatic Transmission Transaxle.Automatic Transmission System (For 2Tr-Fe).Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit

  1. Disconnect the park/neutral position switch connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    C26-4 (B) - Body ground
    		Ignition switch ON
    		11 to 14 V
    C26-4 (B) - Body ground
    		Ignition switch off
    		Below 1 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Park/Neutral Position Switch)


NG
Go to step 7
OK


3.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A343E Automatic Transmission Transaxle.Automatic Transmission System (For 2Tr-Fe).Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit

  1. Disconnect the park/neutral position switch connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    4 (B) - 5 (L)
    		Shift lever in P
    		Below 1 Ω
    2 (RB) - 1 (RL)
    		Shift lever in R
    		Below 1 Ω
    4 (B) - 5 (L)
    		Shift lever in N
    		Below 1 Ω
    2 (RB) - 7 (DL)
    		Shift lever in D or 3
    		Below 1 Ω
    2 (RB) - 3 (2L)
    		Shift lever in 2
    		Below 1 Ω
    2 (RB) - 8 (LL)
    		Shift lever in L
    		Below 1 Ω
    4 (B) - 5 (L)
    		Shift lever not in P
    		10 kΩ or higher
    2 (RB) - 1 (RL)
    		Shift lever not in R
    		10 kΩ or higher
    4 (B) - 5 (L)
    		Shift lever not in N
    		10 kΩ or higher
    2 (RB) - 7 (DL)
    		Shift lever not in D or 3
    		10 kΩ or higher
    2 (RB) - 3 (2L)
    		Shift lever not in 2
    		10 kΩ or higher
    2 (RB) - 8 (LL)
    		Shift lever not in L
    		10 kΩ or higher
    Text in Illustration
    *a
    		Component without harness connected
    (Park/Neutral Position Switch)


NG
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (HILUX_TGN26 RM0000010NC05PX.html)
OK


4.INSPECT SHIFT LOCK CONTROL ECU


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A343E Automatic Transmission Transaxle.Automatic Transmission System (For 2Tr-Fe).Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit

  1. Disconnect the shift lock control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 (AT3) - 9 (NSSD)
    		Shift lever in 3
    		Below 1 Ω
    3 (AT3) - 9 (NSSD)
    		Shift lever in D
    		10 kΩ or higher
    Text in Illustration
    *a
    		Component without harness connected
    (Shift Lock Control ECU)


NG
REPLACE SHIFT LOCK CONTROL ECU (SHIFT LOCK CONTROL UNIT ASSEMBLY) (HILUX_TGN26 RM0000010NQ025X.html)
OK


5.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - SHIFT LOCK CONTROL ECU)


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A343E Automatic Transmission Transaxle.Automatic Transmission System (For 2Tr-Fe).Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit

  1. Disconnect the shift lock control ECU connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    9 (NSSD) - Body ground
    1. Ignition switch ON
    2. Shift lever in D or 3
    		11 to 14 V
    9 (NSSD) - Body ground
    1. Ignition switch ON
    2. Shift lever not in D or 3
    		Below 1 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Shift Lock Control ECU)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


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


    Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.A343E Automatic Transmission Transaxle.Automatic Transmission System (For 2Tr-Fe).Automatic Transmission System (For 2Tr-Fe) Park / Neutral Position Switch Circuit

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    G88-11 (R) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever in R
    		11 to 14 V*
    G88-19 (3) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever in 3
    		11 to 14 V
    G88-10 (2) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever in 2
    		11 to 14 V
    G88-9 (L) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever in L
    		11 to 14 V
    G88-11 (R) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever not in R
    		Below 1 V
    G88-19 (3) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever not in 3
    		Below 1 V
    G88-10 (2) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever not in 2
    		Below 1 V
    G88-9 (L) - C75-3 (E1)
    1. Ignition switch ON
    2. Shift lever not in L
    		Below 1 V
    Text in Illustration
    *a
    		Rear view of wire harness connector
    (to ECM)
    HINT:
    *: The voltage will drop slightly due to the illumination of the back-up light.


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (HILUX_TGN26 RM000000VW202LX.html)

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

  1. Disconnect the C26 park/neutral position switch connector.

  1. Disconnect the G89 ECM connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    C26-4 (B) - G89-30 (NSW)
    		Always
    		Below 1 Ω
    C26-4 (B) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (HILUX_TGN26 RM000000VW202LX.html)