Clutch Switch Circuit

CRUISE CONTROL: CRUISE CONTROL SYSTEM: Clutch Switch Circuit

Clutch Switch Circuit

DESCRIPTION

Clutch switch circuit inspection is necessary for M/T vehicles.
When the clutch pedal is released, the ECM receives battery voltage through the LH-IG fuse. When the clutch pedal is depressed, the clutch switch for the cruise control opens, and voltage is no longer sent to terminal CLSW of the ECM. The ECM cancels cruise control operation when the battery voltage to terminal CLSW interrupted.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT ECM (CLSW TERMINAL)




(a) Disconnect the A5 connector from the ECM.
(b) Turn the engine switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard voltage:






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




(a) Turn the engine switch off.
(b) Disconnect the A21 connector from the clutch switch.
(c) Remove the clutch switch.
(d) 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 (ECM - CLUTCH SWITCH)




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






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