Manual Transmission
CLUTCH INTERLOCK/UPSTOP SWITCHDESCRIPTION
LHD
The LHD clutch interlock/upstop switch is an assembly consisting of two switches: an engine starter inhibit switch (interlock) and a clutch pedal upstop switch (Fig. 6). The switch assembly is located in the clutch/brake pedal bracket assembly (Fig. 7), each switch being fastened by four plastic wing tabs.
RHD
The RHD clutch interlock/upstop switch (Fig. 8) consists of a single, multi-function switch that is activated by hydraulic clutch master cylinder push rod travel.
OPERATION
CLUTCH INTERLOCK SWITCH
The clutch interlock switch prevents engine starter operation and inadvertent vehicle movement with the clutch pedal in the up position (not depressed), or under normal conditions with the clutch engaged and the transaxle in gear.
WARNING: WHEN THERE IS A LOSS OF CLUTCH SYSTEM HYDRAULIC FLUID, OR THE CLUTCH MASTER CYLINDER PUSHROD IS DISCONNECTED FROM THE PEDAL LEVER, THE ENGINE MAY START WITH THE CLUTCH ENGAGED, CAUSING UNDESIRABLE VEHICLE MOVEMENT IF THE TRANSAXLE IS IN ANY GEAR.
The switch is open while the clutch pedal is at rest or in the up position. When the clutch pedal is fully depressed on LHD models, the clutch pedal lever closes the switch, completing the signal circuit from the PCM and closing the ground path, allowing engine starter operation. When the clutch pedal is fully depressed on RHD models, the master cylinder push rod closes the switch, completing the signal circuit from the PCM and closing the ground path, allowing engine starter operation. The interlock switch is not adjustable.
CLUTCH PEDAL UPSTOP SWITCH
With the clutch pedal at rest, the clutch pedal upstop switch is closed, allowing speed control operation. When the clutch pedal is depressed, the upstop switch opens and signals the PCM to cancel speed control operation, and enter a modified engine calibration schedule to improve driveability during gear-to-gear shifts. The upstop switch is not adjustable.