стр.7 Reasons why N Switch Signal is Transmitted to Instrument Panel *(1) 1. HDC operation signal

Reasons why N Switch Signal is Transmitted to Instrument Panel *(1) 1. HDC operation signal

/library/BOOKS/CAR/SsangYong/Kyron/Kyron_2_Chasis_015_01_002.pdf\n
Reasons why N Switch Signal is Transmitted to Instrument Panel *(1)
1. HDC operation signal
The HDC function operates when the HDC switch is turned on with gear shift lever is in forward/reverse driving
positions. Vehicles with the automatic transmission receive the signal from the gear shift lever unit and vehicles with
manual transmission receive the neutral signal from the N (neutral) switch.
1) Manual transmission: operates in the 1st gear or reverse gear position (does not operate in the neutral position).
2) Automatic transmission: operates in all hear positions except P (parking) and N (neutral) position.
The vehicle with the manual transmission doesn’t have a independent device or switch that detects the 1st
gear position. It detects only the forward/reverse direction through the rear light switch and the neutral switch,
and cannot solely detect the 1st gear position. The reason for noting the 1st gear above, although the HDC also
operates at over the 2nd gear, is because the engine may be turned off during the HDC operation.
The HDC operates on the very steep road. Thus, it should be used only when the transmission is in the 1st gear
position.
2. Raising the RPM in vehicles with the manual transmission.
This switch detects whether the gear is in N position or in other positions. The instrument cluster sends the signal
to the engine ECU. The engine ECU receives the N switch signal, the vehicle speed, the clutch operating conditions,
and the engine coolant temperature and raises the engine speed by - rpm. This helps the vehicle start
smoothly during gear shifting.
N Switch
Outside Inside
CLUSTER CHANGED BY
KYRON SM -. EFFECTIVE DATE
AFFECTED VIN