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 GTS (CRUISE CONTROL MAIN SWITCH)

INSPECT CRUISE CONTROL MAIN SWITCH

INSPECT CRUISE CONTROL SWITCH WIRE

INSPECT SPIRAL CABLE SUB-ASSEMBLY

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

CRUISE CONTROL SYSTEM - Cruise Control Switch Circuit


DESCRIPTION

The cruise control main switch is used to turn the cruise control system on and off, as well as operate 7 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP and CANCEL. The SET, TAP-DOWN and - (COAST) functions, and the RES (RESUME), TAP-UP and + (ACCEL) 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 the direction of each arrow and turns off after releasing it. The internal contact points of the cruise control main switch turn on with switch operation. Then the ECM reads the voltage value that has been changed by the switch operation to control the SET, - (COAST), RES (RESUME), + (ACCEL), and CANCEL functions.

WIRING DIAGRAM


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


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


INSPECTION PROCEDURE

1.READ VALUE USING GTS (CRUISE CONTROL MAIN SWITCH)

  1. Use the Data List to check if the cruise control main switch is functioning properly (Click here).

    Cruise Control
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Cancel Switch
    		CANCEL switch status / ON or OFF
    		ON: CANCEL switch on
    OFF: CANCEL switch off
    		-
    -SET Switch
    		-/SET switch status / ON or OFF
    		ON: -/SET switch on
    OFF: -/SET switch off
    		-
    +RES Switch
    		+/RES switch status / ON or OFF
    		ON: +/RES switch on
    OFF: +/RES switch off
    		-
    Cruise Ready Main-CPU
    		Cruise control system standby condition / ON or OFF
    		Each time cruise control main switch (ON/OFF) is pushed, ON or OFF changes
    		-
    Cruise Ready Sub-CPU
    		Cruise control system standby condition / ON or OFF
    		Each time cruise control main switch (ON/OFF) is pushed, ON or OFF changes
    		-
    OK:
    The Data List items shown in the table change according to the operation of the cruise control main switch.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.INSPECT CRUISE CONTROL MAIN SWITCH

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

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



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. Disconnect the z37 spiral cable sub-assembly connector.

  1. Disconnect the A cruise control main switch connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    z37-3 (CCS) - A-3 (CCS)
    		Always
    		Below 1 Ω
    z37-4 (ECC) - A-1 (ECC)
    z37-3 (CCS) - Body ground
    		Always
    		10 kΩ or higher
    z37-4 (ECC) - Body ground
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Spiral Cable Sub-assembly)
    *b
    		Front view of wire harness connector
    (to Cruise Control Main Switch)


NG
REPLACE CRUISE CONTROL SWITCH WIRE (Click here)
OK


4.INSPECT SPIRAL CABLE SUB-ASSEMBLY

  1. Remove the spiral cable sub-assembly (Click here).

  1. Inspect the spiral cable sub-assembly (Click here).



NG
REPLACE SPIRAL CABLE SUB-ASSEMBLY (Click here)
OK


5.CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM AND BODY GROUND)

  1. w/o Entry and Start System:

    1. Disconnect the E12 spiral cable sub-assembly connector.

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

      1. *1: for 1GR-FE (LHD) and 1VD-FTV (LHD)
      2. *2: for 1GR-FE (RHD) and 1VD-FTV (RHD)

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      E12-1 (CCS) - A38-45 (CCS)*1
      		Always
      		Below 1 Ω
      E12-1 (CCS) - A38-40 (CCS)*2
      E12-1 (CCS) - A52-45 (CCS)*3
      E12-1 (CCS) - A52-40 (CCS)*4
      E12-2 (ECC) - Body ground
      E12-1 (CCS) or A38-45 (CCS)*1 - Body ground
      		Always
      		10 kΩ or higher
      E12-1 (CCS) or A38-40 (CCS)*2 - Body ground
      E12-1 (CCS) or A52-45 (CCS)*3 - Body ground
      E12-1 (CCS) or A52-40 (CCS)*4 - Body ground
      1. *1: for 1GR-FE (LHD)
      2. *2: for 1VD-FTV (LHD)
      3. *3: for 1GR-FE (RHD)
      4. *4: for 1VD-FTV (RHD)

  1. w/ Entry and Start System:

    1. Disconnect the E112 spiral cable sub-assembly connector.

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

      1. *1: for 3UR-FE, 1UR-FE (LHD), 1VD-FTV (LHD) and 1GR-FE (LHD)
      2. *2: for 1UR-FE (RHD), 1GR-FE (RHD) and 1VD-FTV (RHD)

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

      Standard Resistance:
      Tester Connection
      		Condition
      		Specified Condition
      E112-1 (CCS) - A38-60 (CCS)*1
      		Always
      		Below 1 Ω
      E112-1 (CCS) - A38-40 (CCS)*2
      E112-1 (CCS) - A38-45 (CCS)*3
      E112-1 (CCS) - A52-40 (CCS)*4
      E112-1 (CCS) - A52-45 (CCS)*5
      E112-2 (ECC) - Body ground
      E112-1 (CCS) or A38-60 (CCS)*1 - Body ground
      		Always
      		10 kΩ or higher
      E112-1 (CCS) or A38-40 (CCS)*2 - Body ground
      E112-1 (CCS) or A38-45 (CCS)*3 - Body ground
      E112-1 (CCS) or A52-40 (CCS)*4 - Body ground
      E112-1 (CCS) or A52-45 (CCS)*5 - Body ground
      1. *1: for 3UR-FE
      2. *2: for 1VD-FTV (LHD)
      3. *3: for 1UR-FE (LHD) and 1GR-FE (LHD)
      4. *4: for 1VD-FTV (RHD)
      5. *5: for 1UR-FE (RHD) and 1GR-FE (RHD)
Result:
Result
Proceed to
OK (for 1GR-FE)
A
OK (for 1VD-FTV)
B
OK (for 1UR-FE)
C
OK (for 3UR-FE)
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)