The clutch switch is used to detect changes of gear and impending the engine load signal such as the de-clutch, engine first gear, move off.. Also, the clutch switch has the cancellation of cruise control. To prevent the engine rpm surging when de-clutching during the gear changes, The ECM adjusts injector operation.
If the ECM does not receive the clutch signal up to 80 Km/h during two driving cycles, this code will be set.
DTC NO. | Detecting Condition | Possible Cause |
P 0704 | ● P 0704 Error is recognized if the clutch switch supplies no signal to the ECM until of the vehicle speed is reached to 80km/h ● Engine Condition : RUN ● Fuel Limit : NO ● Fuel Cut : NO ● EGR OFF : NO ● MIL : NO ● LIMP HOME MODE Cruise control system deactivited | ● Open or short in circuit ● Clutch s/w ● ECM |