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DATA MONITOR (SPEC) MODE
NGEC0555S11
Monitored item
[Unit]
ECM
input
sig-
nals
Main
sig-
nals
Description Remarks
MAS A/F SE-B1 [V] 쎻쎻
쐌 The signal voltage of the mass air flow sensor
specification is displayed.
쐌 When the engine is running, specifi-
cation range is indicated.
B/FUEL SCHDL
[msec]
쐌 “Base fuel schedule” indicates the fuel injection
pulse width programmed into ECM, prior to any
learned on board correction.
쐌 When the engine is running, specifi-
cation range is indicated.
A/F ALPHA-B1 [%] 쎻
쐌 Indicates the mean value of the air-fuel ratio
feedback correction factor per cycle.
쐌 When the engine is running, specifi-
cation range is indicated.
쐌 This data also includes the data for
the air-fuel ratio learning control.
A/F ALPHA-B2 [%] 쎻
NOTE:
쐌 Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
쐌 Regarding D22 model, “B1” indicates bank 1 and “B2” indicates bank 2.
ACTIVE TEST MODE
NGEC0555S07
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJEC-
TION
쐌 Engine: Return to the original
trouble condition
쐌 Change the amount of fuel injec-
tion using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
쐌 Harness and connector
쐌 Fuel injectors
쐌 Front heated oxygen sensor
IGNITION TIM-
ING
쐌 Engine: Return to the original
trouble condition
쐌 Timing light: Set
쐌 Retard the ignition timing using
CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
쐌 Adjust initial ignition timing
IACV-AAC/V
OPENING
쐌 Engine: After warming up, idle
the engine.
쐌 Change the IACV-AAC valve
opening percent using CON-
SULT-II.
Engine speed changes according to
the opening percent.
쐌 Harness and connector
쐌 IACV-AAC valve
POWER BAL-
ANCE
쐌 Engine: After warming up, idle
the engine.
쐌 A/C switch “OFF”
쐌 Shift lever “N”
쐌 Cut off each injector signal one at
a time using CONSULT-II.
Engine runs rough or dies.
쐌 Harness and connector
쐌 Compression
쐌 Injectors
쐌 Power transistor
쐌 Spark plugs
쐌 Ignition coils
ENG COOLANT
TEMP
쐌 Engine: Return to the original
trouble condition
쐌 Change the engine coolant tem-
perature using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
쐌 Harness and connector
쐌 Engine coolant temperature sen-
sor
쐌 Fuel injectors
COOLING FAN*
쐌 Ignition switch: ON
쐌 Turn the cooling fan “ON” and
“OFF” using CONSULT-II.
Cooling fan moves and stops.
쐌 Harness and connector
쐌 Cooling fan motor
쐌 Cooling fan relay
FUEL PUMP
RELAY
쐌 Ignition switch: ON
(Engine stopped)
쐌 Turn the fuel pump relay “ON”
and “OFF” using CONSULT-II
and listen to operating sound.
Fuel pump relay makes the operat-
ing sound.
쐌 Harness and connector
쐌 Fuel pump relay
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
VG33E
CONSULT-II (Cont’d)
EC-684
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