Cruise Control System (For Sedan) Clutch Switch Circuit

Engine Hybrid System. Yaris. Ncp93, 131
Cruise Control. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (ECM - BATTERY)

INSPECT CLUTCH SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (CLUTCH SWITCH ASSEMBLY - ECM)

CRUISE CONTROL SYSTEM (for Sedan) - Clutch Switch Circuit


DESCRIPTION

Clutch switch circuit inspection is necessary for M/T vehicles.
When the clutch pedal is released, the ECM receives the positive (+) battery voltage through the ECU-IG fuse and ignition switch. While the clutch pedal is depressed, the clutch switch assembly sends a signal to terminal D of the ECM. The ECM cancels cruise control when terminal D receives the signal (voltage of below 1 V).

WIRING DIAGRAM


Yaris. Ncp93, 131.Cruise Control.Cruise Control System (For Sedan).Cruise Control System (For Sedan) Clutch Switch Circuit


INSPECTION PROCEDURE

1.CHECK HARNESS AND CONNECTOR (ECM - BATTERY)
Yaris. Ncp93, 131.Cruise Control.Cruise Control System (For Sedan).Cruise Control System (For Sedan) Clutch Switch Circuit

  1. Disconnect the C20 ECM connector.

  1. Turn the ignition switch to the ON position.

  1. Measure the voltage.

    Standard voltage:
    Tester Connection
    		Clutch Pedal Condition
    		Specified Condition
    D (C20-56) - Body ground
    		Depressed
    		Below 1 V
    D (C20-56) - Body ground
    		Released
    		10 to 14 V

  1. Reconnect the ECM connector.



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


2.INSPECT CLUTCH SWITCH ASSEMBLY


    Yaris. Ncp93, 131.Cruise Control.Cruise Control System (For Sedan).Cruise Control System (For Sedan) Clutch Switch Circuit

  1. Disconnect the clutch switch connector.

  1. Measure the resistance.

    Standard resistance:
    Tester Connection
    		Clutch Pedal Condition
    		Specified Condition
    1 - 2
    		Switch pin free
    (Clutch pedal depressed)
    		10 kΩ or higher
    1 - 2
    		Switch pin pushed in
    (Clutch pedal released)
    		Below 1 Ω

  1. Reconnect the clutch switch connector.



NG
REPLACE CLUTCH SWITCH ASSEMBLY (YARIS_NCP93 RM000001OC2020X.html)
OK


3.CHECK HARNESS AND CONNECTOR (CLUTCH SWITCH ASSEMBLY - ECM)


    Yaris. Ncp93, 131.Cruise Control.Cruise Control System (For Sedan).Cruise Control System (For Sedan) Clutch Switch Circuit

  1. Disconnect the C20 ECM connector.

  1. Disconnect the A29 clutch switch connector.

  1. Measure the resistance.

    Standard resistance:
    Tester Connection
    		Specified Condition
    A29-2 - D (C20-56)
    		Below 1 Ω
    A29-2 - D (C20-56) - Body ground
    		10 kΩ or higher

  1. Reconnect the clutch switch connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH SWITCH ASSEMBLY - ECM)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH SWITCH ASSEMBLY - BATTERY)