ELECTRONIC CONTROLLED AUTOMATIC TRANSMISSION SYSTEM > Kick Down Switch Circuit

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DESCRIPTION

The kick-down switch is turned ON when the accelerator pedal is fully depressed and a signal is sent to the ECM.
When the kick-down switch is turned ON, the ECM controls gear shifting according to the programmed shift diagrams.
If a short circuit develops in the kick-down switch, the ECM disregards the kick-down signals and controls shifting at the normal shift points.

WIRING DIAGRAM


C111333E01

1.CHECK HARNESS AND CONNECTOR (KICK DOWN SWITCH - BODY GROUND)

  1. Disconnect the kick-down switch connector.



    C111329E02

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

    Resistance:
    Tester Connection
    		Specified Condition
    1 - Body ground
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.INSPECT KICK DOWN SWITCH ASSEMBLY


    C111330E02

  1. Measure resistance according to the value(s) in the table below when kick-down switch is ON and OFF.

    Resistance:
    Switch Condition
    		Tester Connection
    		Specified Condition
    Press continuously
    (Kick-down switch is ON)
    		1 - 2
    		Below 1 Ω
    Release
    (Kick-down switch is OFF)
    		↑
    		10 kΩ or higher



NG
REPLACE KICK DOWN SWITCH ASSEMBLY
OK


3.CHECK HARNESS AND CONNECTOR (KICK DOWN SWITCH - ECM)


    G025190E01

  1. Connect the kick-down switch connector.

  1. Disconnect the ECU connector.

  1. Measure resistance according to the value(s) in the table below when accelerator pedal is fully depressed or not.

    Resistance:
    Switch Condition
    		Tester Connection
    		Specified Condition
    Fully depressed
    (Kick-down switch is ON)
    		A6 - 26 (KD) - Body ground
    		Below 1 Ω
    Release
    (Kick-down switch is OFF)
    		↑
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE