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DATA MONITOR MODE
=NGEC0555S06
Monitored item [Unit]
ECM
input sig-
nals
Main sig-
nals
Description Remarks
ENG SPEED [rpm] 쎻
쐌 Indicates the engine speed computed
from the REF signal (120° signal) of
the camshaft position sensor.
MAS AIR/FL SE [V] 쎻쎻
쐌 The signal voltage of the mass air flow
sensor is displayed.
쐌 When the engine is stopped, a certain
value is indicated.
COOLAN TEMP/S
[°C] or [°F]
쎻쎻
쐌 The engine coolant temperature
(determined by the signal voltage of
the engine coolant temperature sen-
sor) is displayed.
쐌 When the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine
coolant temperature determined by the
ECM is displayed.
HO2S1 (B1) [V] 쎻쎻
쐌 The signal voltage of the heated oxy-
gen sensor 1 (front) is displayed.
HO2S1 (B2) [V] 쎻쎻
HO2S2 (B1) [V] 쎻쎻
쐌 The signal voltage of the heated oxy-
gen sensor 2 (rear) is displayed.
HO2S2 (B2) [V] 쎻쎻
HO2S1 MNTR (B1)
[RICH/LEAN]
쎻
쐌 Display of heated oxygen sensor 1
(front) signal during air-fuel ratio feed-
back control:
RICH ... means the mixture became
“rich”, and control is being affected
toward a leaner mixture.
LEAN ... means the mixture became
“lean”, and control is being affected
toward a rich mixture.
쐌 After turning ON the ignition switch,
“RICH” is displayed until air-fuel mix-
ture ratio feedback control begins.
쐌 When the air-fuel ratio feedback is
clamped, the value just before the
clamping is displayed continuously.
HO2S1 MNTR (B2)
[RICH/LEAN]
쎻
HO2S2 MNTR (B1)
[RICH/LEAN]
쎻
쐌 Display of heated oxygen sensor 2
(rear) signal:
RICH ... means the amount of oxygen
after three way catalyst is relatively
small.
LEAN ... means the amount of oxygen
after three way catalyst is relatively
large.
쐌 When the engine is stopped, a certain
value is indicated.
HO2S2 MNTR (B2)
[RICH/LEAN]
쎻
VHCL SPEED SE
[km/h] or [mph]
쎻쎻
쐌 The vehicle speed computed from the
vehicle speed sensor signal is dis-
played.
BATTERY VOLT [V] 쎻쎻
쐌 The power supply voltage of ECM is
displayed.
THRTL POS SEN [V] 쎻쎻
쐌 The throttle position sensor signal volt-
age is displayed.
TANK F/TMP SE
[°C] or [°F]
쎻
쐌 The fuel temperature judged from the
fuel tank temperature sensor signal
voltage is displayed.
INT/A TEMP SE
[°C] or [°F]
쎻
쐌 The intake air temperature determined
by the signal voltage of the intake air
temperature sensor is indicated.
EVAP SYS PRES [V]
쐌 The signal voltage of EVAP control
system pressure sensor is displayed.
ABSOL PRES/SE [V]
쐌 The signal voltage of the absolute
pressure sensor is displayed.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
VG33E
CONSULT-II (Cont’d)
EC-681
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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