Cruise Control System Cruise Control Switch Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING DATA LIST (CRUISE CONTROL MAIN SWITCH)

INSPECT CRUISE CONTROL MAIN SWITCH

INSPECT SPIRAL CABLE

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

CRUISE CONTROL SYSTEM - Cruise Control Switch Circuit


DESCRIPTION

This circuit sends signals to the ECM depending on the cruise control main switch condition. The battery supplies positive (+) battery voltage to the cruise control main switch. Then terminal CCS of the ECM receives the voltage according to the switch condition.

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit


INSPECTION PROCEDURE

1.READ VALUE USING DATA LIST (CRUISE CONTROL MAIN SWITCH)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch ON and turn the intelligent tester main switch ON.

  1. Check the Data List for proper functioning of the cruise control main switch.

    ECM (Cruise control):
    Item
    		Measurement Item / Display (Range)
    		Normal Condition
    		Diagnostic Note
    Main SW M-CPU
    		Cruise control main switch signal (Main CPU) / ON or OFF
    		ON: Cruise control main switch is ON (Main CPU)
    OFF: Cruise control main switch is OFF (Main CPU)
    		-
    Main SW M-CPU
    		Cruise control main switch signal (Main CPU) / ON or OFF
    		ON: Cruise control main switch is ON (Sub CPU)
    OFF: Cruise control main switch is OFF (Sub CPU)
    		-
    Cancel Switch
    		CANCEL switch signal / ON or OFF
    		ON: CANCEL switch ON
    OFF: CANCEL switch OFF
    		-
    SET/COAST Switch
    		SET/COAST switch signal / ON or OFF
    		ON: SET/COAST switch ON
    OFF: SET/COAST switch OFF
    		-
    RES/ACC Switch
    		RES/ACC switch signal / ON or OFF
    		ON: RES/ACC switch ON
    OFF: RES/ACC switch OFF
    		-
    OK:
    When cruise control main switch operation is performed, results will be same as above.


OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
NG


2.INSPECT CRUISE CONTROL MAIN SWITCH
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. Disconnect the cruise control main switch connector.

  1. Measure the resistance of the switch.

Standard resistance:
Tester Connection
Switch Condition
Specified Condition
3 - 4
RES/ACC
216 to 264 Ω
3 - 4
SET/COAST
567 to 693 Ω
3 - 4
CANCEL
1,386 to 1,694 Ω
3 - 4
Main switch OFF
10 kΩ or higher
3 - 4
Main switch ON
Below 1 Ω


NG
REPLACE CRUISE CONTROL MAIN SWITCH ASSEMBLY
OK


3.INSPECT SPIRAL CABLE
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. Disconnect the S13 cable connector.

  1. Disconnect the cruise control main switch connector.

  1. Measure the resistance of the spiral cable.

    Standard resistance:
    Tester Connection
    		Specified Condition
    A-3 (CCS) - S13-1 (CCS)
    		Below 1 Ω
    A-4 (ECC) - S13-2 (ECC)
    		Below 1 Ω


NG
REPLACE SPIRAL CABLE SUB-ASSEMBLY
OK


4.CHECK WIRE HARNESS (SPIRAL CABLE - ECM AND BODY GROUND)

  1. Disconnect the S13 cable connector.

  1. Disconnect the E13 ECM connector.



    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Cruise Control.Cruise Control System.Cruise Control System Cruise Control Switch Circuit

  1. Measure the resistance of the wire harness side connectors.

    Standard resistance:
    Tester Connection
    		Specified Condition
    S13-1 (CCS) - E13-2 (CCS)
    		Below 1 Ω
    S13-2 (ECC) - Body ground
    		Below 1 Ω
    S13-1 (CCS) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE