Cruise Control System Cruise Control Switch Circuit

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
Cruise Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH)

INSPECT CRUISE CONTROL MAIN SWITCH

INSPECT CRUISE CONTROL SWITCH WIRE

INSPECT SPIRAL CABLE

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM AND BODY GROUND)

CRUISE CONTROL SYSTEM - Cruise Control Switch Circuit


DESCRIPTION

The cruise control main switch is used to operate 7 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCELERATION), TAP-UP, and CANCEL. The SET, TAP-DOWN and - (COAST) functions, and the RES (RESUME), TAP-UP and + (ACCELERATION) functions are operated with the same switch. The cruise control main switch is an automatic return type switch which turns on only while operating it in each arrow direction and turns off after releasing it. The internal contact point of the cruise control main switch is turned on with the switch operation. Then the ECM reads the resistance value that has been changed by the switch operation to control SET, - (COAST), RES (RESUME), + (ACCELERATION) and CANCEL.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (CRUISE CONTROL MAIN SWITCH)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. Using the intelligent tester, read the Data List (Click here).

    Cruise Control
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Main SW M-CPU
    		Cruise control main switch (Main CPU) / ON or OFF
    		ON: Cruise control main switch (Main CPU) on
    OFF: Cruise control main switch (Main CPU) off
    		-
    Cancel Switch
    		CANCEL switch signal / ON or OFF
    		ON: CANCEL switch on
    OFF: CANCEL switch off
    		-
    SET/COAST Switch
    		-SET switch signal / ON or OFF
    		ON: -SET switch on
    OFF: -SET switch off
    		-
    RES/ACC Switch
    		+RES switch signal / ON or OFF
    		ON: +RES switch on
    OFF: +RES switch off
    		-
    OK:
    The intelligent tester display changes according to operation of cruise control main switch.


NG
Go to step 2
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.INSPECT CRUISE CONTROL MAIN SWITCH

Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. Remove the cruise control main switch (Click here).

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    1 - 3
    		Neutral
    		1MΩ or higher
    Pushed to +RES
    		235 to 245 Ω
    Pushed to -SET
    		620 to 640 Ω
    Pushed to CANCEL
    		1510 to 1570 Ω
    Main switch pushed off
    		1MΩ or higher
    Main switch pushed on
    		Below 2.5 Ω


NG
REPLACE CRUISE CONTROL MAIN SWITCH (Click here)
OK


3.INSPECT CRUISE CONTROL SWITCH WIRE
Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. Remove the cruise control switch wire.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    z37-3 - 3
    		Always
    		Below 1 Ω
    z37-4 - 1


NG
REPLACE CRUISE CONTROL SWITCH WIRE
OK


4.INSPECT SPIRAL CABLE
Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. If there are any defects as follows, replace the spiral cable with a new one: scratches, cracks, dents or chips on the connector or the spiral cable.

  1. Check spiral cable.

    1. Set the spiral cable to the center position (Click here).

    2. After setting the spiral cable to the center position, rotate the spiral cable 2.5 times clockwise, and measure the resistance according to the value(s) in the table below. Then rotate the spiral cable 5 times counterclockwise, and measure the resistance according to the value(s) in the table below.

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      z37-3 - E12-1 (CCS)
      		Always
      		Below 1 Ω
      z37-4 - E12-2 (ECC)

    3. After setting the spiral cable to the center position, rotate the spiral cable 2.5 times clockwise. Then while rotating the spiral cable 5 times counterclockwise, measure the resistance according to the value(s) in the table below.

      NOTICE:
      As the spiral cable may break, do not rotate the spiral cable more than the specified amount.
      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      z37-3 - E12-1 (CCS)
      		Always
      		Below 1 Ω
      z37-4 - E12-2 (ECC)


NG
REPLACE SPIRAL CABLE (Click here)
OK


5.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - ECM AND BODY GROUND)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. Disconnect the E12 spiral cable connector.

  1. Disconnect the A38*1 or A52*2 ECM connector.

    HINT:
    1. *1: for LHD
    2. *2: for RHD

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

    Standard Resistance:
    for 1GR-FE LHD, 1UR-FE LHD, 3UR-FE
    Tester Connection
    		Condition
    		Specified Condition
    E12-1 (CCS) - A38-45 (CCS)
    		Always
    		Below 1 Ω
    E12-1 (CCS) - Body ground
    		Always
    		10 kΩ or higher
    E12-2 (ECC) - Body ground
    		Always
    		Below 1 Ω
    for 1GR-FE RHD, 1UR-FE RHD
    Tester Connection
    		Condition
    		Specified Condition
    E12-1 (CCS) - A52-45 (CCS)
    		Always
    		Below 1 Ω
    E12-1 (CCS) - Body ground
    		Always
    		10 kΩ or higher
    E12-2 (ECC) - Body ground
    		Always
    		Below 1 Ω
    for 1VD-FTV LHD
    Tester Connection
    		Condition
    		Specified Condition
    E12-1 (CCS) - A38-40 (CCS)
    		Always
    		Below 1 Ω
    E12-1 (CCS) - Body ground
    		Always
    		10 kΩ or higher
    E12-2 (ECC) - Body ground
    		Always
    		Below 1 Ω
    for 1VD-FTV RHD
    Tester Connection
    		Condition
    		Specified Condition
    E12-1 (CCS) - A52-40 (CCS)
    		Always
    		Below 1 Ω
    E12-1 (CCS) - Body ground
    		Always
    		10 kΩ or higher
    E12-2 (ECC) - Body ground
    		Always
    		Below 1 Ω
    Result
    Result
    		Proceed to
    OK
    (for 1GR-FE)
    		A
    OK
    (for 1UR-FE)
    		B
    OK
    (for 3UR-FE)
    		C
    OK
    (for 1VD-FTV)
    		D
    NG
    		E


B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)

D
REPLACE ECM (Click here)

E
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE ECM (Click here)