Clutch Switch Circuit

CRUISE CONTROL SYSTEM: Clutch Switch Circuit

Clutch Switch Circuit

DESCRIPTION

Clutch switch circuit inspection is necessary for M/T vehicle.
When the clutch pedal is released, the ECM receive positive (+) battery voltage through the IG1 relay and GAUGE1 fuse. While depressing the clutch pedal, the clutch switch sends a signal to terminal D of the ECM. The ECM cancels cruise control drive when terminal D receives the signal (voltage of below 1 V).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (ECM - BATTERY)





(a) Turn the ignition switch off.
(b) Disconnect the ECM connector.
(c) Turn the ignition switch to the ON position.
(d) Measure the voltage according to the value(s) in the table below.
Standard voltage:





NG -- INSPECT CLUTCH SWITCH
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
2. INSPECT CLUTCH SWITCH





(a) Turn the ignition switch off.
(b) Disconnect the clutch switch connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPLACE CLUTCH SWITCH
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (CLUTCH SWITCH - ECM)





(a) Measure the resistance according to the value(s) in the table below.
Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (CLUTCH SWITCH - ECM)
OK -- CHECK AND REPAIR HARNESS OR CONNECTOR (CLUTCH SWITCH - BATTERY)