Isuzu 4HL1 Workshop Manual page 83

Tech 2 Data
Item
Display
42/63 PTO Accelerator
Opening
43/63 ASR Accelerator
Opening
44/63 Starter Switch
45/63 Ignition Switch
46/63 Clutch Switch
47/63 Neutral Switch
48/63 Stop Lamp
Switch
49/63 Exhaust Brake
Switch
Units
displayed
% This parameter refers to the
value calculated by the VIM using
the signals from the PTO
accelerator sensor.
% When the ASR is working, the
accelerator position is limited (the
position is normally reduced from
100 %). This parameter refers to
the percentage calculated by the
VIM using the signals input from
the ASR controller.
ON/OFF This parameter refers to the
status of the signals input from
the key switch to the ECM. It
appears on the display after the
key switch is moved to the
position "ST".
ON/OFF This parameter refers to the
status of the signals input from
the key switch to the ECM. It
appears on the display after the
key switch is moved to the
position "ON" or "ST".
ON/OFF This parameter refers to the
status of the signals input from
the clutch switch to the VIM. It
appears on the display after the
clutch switch is pressed.
ON/OFF This parameter refers to the
status of the signals input from
the neutral switch to the VIM. It
appears on the display after the
gear is in the neutral position.
ON/OFF This parameter refers to the
status of the signals input from
the stop lamp switch to the VIM.
It appears on the display after the
brake pedal is pressed.
ON/OFF This parameter refers to the
status of the signals input from
the exhaust brake switch to the
VIM. It appears on the display
after the exhaust brake switch in
the cab is pressed.
Engine Control System 1A-81
Description How to use parameters
When the display deviates from
the specified level as the PTO
accelerator opening is changed,
the sensor, circuit, VIM, or ECM
may be faulty.
When the display is fixed,
communications with ABS/ASR
control unit, ABS/ASR system,
VIM, ECM, or ABS/ASR control
unit may be faulty.
When the display is fixed, the
switch, circuit, or ECM may be
faulty.
When the display is fixed, the
switch, circuit, or ECM may be
faulty.
When the display is fixed, the
clutch switch, circuit, VIM, or
ECM may be faulty.
When the display is fixed, the
neutral switch, circuit, VIM, or
ECM may be faulty.
When the display is fixed, the
stop lamp switch, circuit, VIM, or
ECM may be faulty.
When the display is fixed, the
exhaust brake switch, circuit,
VIM, or ECM may be faulty.