Automatic Transaxle System Transmission Control Switch Circuit

Transmission. Camry. Acv40 Gsv40
U660E Automatic Transaxle. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)

INSPECT TRANSMISSION CONTROL SWITCH

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)

AUTOMATIC TRANSAXLE SYSTEM - Transmission Control Switch Circuit


DESCRIPTION

When moving the shift lever into the S position using the transmission control switch, it is possible to switch the shift range position between "1" (first range) and "6" (sixth range).
Shifting up "+" once raises one shift range position, and shifting down "-" lowers one shift range position.

WIRING DIAGRAM


Camry. Acv40 Gsv40.U660E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Transmission Control Switch Circuit


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (BATTERY - TRANSMISSION CONTROL SWITCH)


    Camry. Acv40 Gsv40.U660E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Transmission Control Switch Circuit

  1. Disconnect the transmission control switch connector of the shift lock control unit assembly.

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

    Standard voltage:
    Switch Condition
    		Tester Connection
    		Specified Condition
    Ignition switch ON
    		3 - Body ground
    		10 to 14 V
    Ignition switch OFF
    		Below 1 V


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - BODY GROUND)


    Camry. Acv40 Gsv40.U660E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Transmission Control Switch Circuit

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    5 - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT TRANSMISSION CONTROL SWITCH


    Camry. Acv40 Gsv40.U660E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Transmission Control Switch Circuit

  1. Measure the resistance between each terminal of the shift lock control unit assembly when the shift lever is moved to each position.

    Standard resistance:
    Shift Position
    		Tester Connection
    		Specified Condition
    S, "+" and "-"
    		3 - 7
    		Below 1 Ω
    Except S, "+" and "-"
    		10 kΩ or higher
    Press continuously
    "+"
    (Up shift)
    		2 - 5
    		Below 1 Ω
    S
    		10 kΩ or higher
    Press continuously
    "-"
    (Down shift)
    		1 - 5
    		Below 1 Ω
    S
    		10 kΩ or higher


NG
REPLACE TRANSMISSION CONTROL SWITCH
OK


4.CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL SWITCH - ECM)


    Camry. Acv40 Gsv40.U660E Automatic Transaxle.Automatic Transaxle System.Automatic Transaxle System Transmission Control Switch Circuit

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

  1. Disconnect the A24*1 or A55*2 ECM connector.

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

    Standard voltage:
    Shift Position
    		Tester Connection
    		Specified Condition
    S, "+" and "-"
    		A24-25*1 (S) - Body ground
    A55-25*2 (S) - Body ground
    		10 to 14 V
    Except S, "+" and "-"
    		Below 1 V

  1. Turn the ignition switch off.

  1. Disconnect the ECM connector.
    *1: for RHD
    *2: for LHD

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

    Standard resistance:
    Shift Position
    		Tester Connection
    		Specified Condition
    Press continuously
    "+"
    (Up shift)
    		A24-16*1 (SFTU) - Body ground
    A55-16*2 (SFTU) - Body ground
    		Below 1 Ω
    S
    		10 kΩ or higher
    Press continuously
    "-"
    (Down shift)
    		A24-51*1 (SFTD) - Body ground
    A55-51*2 (SFTD) - Body ground
    		Below 1 Ω
    S
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE