Isuzu 4HL1 Workshop Manual page 89

Tech 2 Data
Item
Display
27/31 ASR-PWM
Output
28/31 Exhaust Brake
(ASR) Cut
Request
29/31 AT Accelerator
Opening
30/31 AT-PWM Output
31/31 Freezer Switch
Units
displayed
ON/OFF This parameter refers to the
status whether accelerator
position signals are input to the
VIM from the ASR controller.
ON/OFF This parameter refers to the
status of the exhaust bake cut
signals input from the ABS/ASR
controller to the VIM. It appears
on the display after the signals
are input.
% On automatic transmission
vehicles, 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
AT controller.
ON/OFF This parameter refers to the
status whether accelerator
position signals are input to the
VIM from the AT controller.
ON/OFF This parameter refers to the
status of the signals input from
the freezer switch to the VIM. It
appears on the display after the
freezer controller outputs the
switch-on signal.
Engine Control System 1A-87
Description How to use parameters
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,
communications with ABS/ASR
control unit, ABS/ASR system,
VIM, ECM, or ABS/ASR control
unit may be faulty.
When the display is fixed,
communications with AT control
unit, AT system, VIM, ECM, or
ABS/ASR control unit may be
faulty.
When the display is fixed,
communications with AT control
unit, AT system, VIM, ECM, or
ABS/ASR control unit may be
faulty.
When the display is fixed, the
freezer switch, circuit, VIM, or
ECM may be faulty.