Component Location
General Description

Clutch switch is connected to clutch pedal and transmits clutch operating state to ECM.

When clutch pedal is depressed during driving, engine load changes from loaded to none loaded condition. However, ECM regards vehicle to be loaded becuase VSS signal is still inputted to it. therefore, ECM controls none loaded engine with the condition suitable for loaded engine.

Accordingly, optimum fuel injection control is not performed then, RPM becomes unstable and smoke is produced.

Clutch operation is detected through clutch switch signal. This signal enables ECM to cope with instant change of load condition.

Besides, clutch switch signal is used to detect engaged gear with vehicle speed and engine speed.

DTC Description

P0830 is set when no clutch switch signal change is detected 1). within 2 sec. after shifting gear during driving. 2). while gear shifts 4 times at above 10Km/h and 1000rpm. This code is due to 1) clutch switch component failure or 2) open or short in circuit 3) improper height of clutch pedal.

※ ECM recognize ingaged gear with rpm and vehicle speed sensor signal.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Signal monitoring

● Clutch S/W circuit

● Clutch S/W component

● Clutch S/W pedal hight

Enable Conditions

● Engine run

Threshold Value

● No clutch switch signal change is detected until gear shifted 4 times at above 10Km/h and 1500rpm

Diagnostic Time

● Immediately

Fail Safe

Fuel Cut

NO

EGR Off

NO

Fuel Limit

NO

Check Lamp

NO

Specification

Condition

Clutch Pedal Depressed

Clutch Pedal Released

Switch Operation

Switch ON

Switch OFF

Schematic Diagram
Signal Waveform
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