Engine Cold Idle - jcb JS300 Service Manual

Section C - Electrics
Engine and Power Control

Engine Cold Idle

Engine Cold Idle
The engine cold idle function restricts the engine to idle
speed for different periods of time when the engine coolant
or ambient air temperatures are less than pre-set values.
The MECU uses pre-set data to calculate the cold idle time
period depending on the engine coolant and ambient air
temperature values. The MECU transmits an engine idle
speed requirement to the engine ECU on the CANbus.
When the engine cold idle function is active the hand
throttle control is disabled.
A sensor located on the boom transmits a signal to the
MECU. The MECU converts the signal into the ambient air
K Ambient
temperature. Air Temperature
Sensor ( T C-87)
C-82 9813/5100-1 C-82