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DATA MONITOR MODE
=NFEC0034S06
Monitored item
[Unit]
ECM
INPUT
SIG-
NALS
MAIN
SIG-
NALS
CAN
DIAG
SUP-
PORT
MNTR
Description Remarks
ENG SPEED [rpm] qq
I Indicates the engine speed com-
puted from the signal of the crank-
shaft position sensor (POS) and
camshaft position sensor (PHASE)
I Accuracy becomes poor if engine
speed drops below the idle rpm.
I If the signal is interrupted while the
engine is running, an abnormal
value may be indicated.
MAS A/F SE-B1 [V] qq
I The signal voltage of the mass air
flow sensor is displayed.
I When the engine is stopped, a cer-
tain value is indicated.
COOLAN TEMP/S
[°C] or [°F]
qq
I The engine coolant temperature
(determined by the signal voltage of
the engine coolant temperature
sensor) is displayed.
I When the engine coolant tempera-
ture sensor is open or short-
circuited, ECM enters fail-safe
mode. The engine coolant tempera-
ture determined by the ECM is dis-
played.
HO2S1 (B1) [V] qq
I The signal voltage of the heated
oxygen sensor 1 is displayed.
HO2S1 (B2) [V] q
HO2S2 (B1) [V] q
I The signal voltage of the heated
oxygen sensor 2 is displayed.
HO2S2 (B2) [V] q
HO2S1 MNTR (B1)
[RICH/LEAN]
qq
I Display of heated oxygen sensor 1
signal during air-fuel ratio feedback
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.
I After turning ON the ignition switch,
“RICH” is displayed until air-fuel
mixture ratio feedback control
begins.
I When the air-fuel ratio feedback is
clamped, the value just before the
clamping is displayed continuously.
HO2S1 MNTR (B2)
[RICH/LEAN]
q
HO2S2 MNTR (B1)
[RICH/LEAN]
q
I Display of heated oxygen sensor 2
signal:
RICH ... means the amount of oxy-
gen after three way catalyst is rela-
tively small.
LEAN ... means the amount of oxy-
gen after three way catalyst is rela-
tively large.
I When the engine is stopped, a cer-
tain value is indicated.
HO2S2 MNTR (B2)
[RICH/LEAN]
q
VHCL SPEED SE
[km/h] or [mph]
qq
I The vehicle speed computed from
the vehicle speed sensor signal is
displayed.
BATTERY VOLT [V] qq
I The power supply voltage of ECM
is displayed.
ACCEL SEN 1 [V] qq
I The accelerator pedal position sen-
sor signal voltage is displayed.
ACCEL SEN 2 [V] q
THRTL SEN 1 [V] qq
I The throttle position sensor signal
voltage is displayed.
THRTL SEN 2 [V] q
FUEL T/TMP SE
[°C] or [°F]
q
I The fuel temperature judged from
the fuel tank temperature sensor
signal voltage is displayed.
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-107
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