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TER-
MINAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
1 PU/W Ignition signal
[Engine is running]
쐌 Idle speed
Approximately 0.7V
SEF988U
[Engine is running]
쐌 Engine speed is 2,000 rpm
1.1 - 1.5V
SEF989U
3 R/L Tachometer
[Engine is running]
쐌 Warm-up condition
쐌 Idle speed
1-2V
SEF992U
[Engine is running]
쐌 Engine speed is 2,000 rpm
3-5V
SEF993U
4 OR/B
ECM relay (Self shut-
off)
[Engine is running]
[Ignition switch OFF]
쐌 For a few seconds after turning ignition switch
OFF
0 - 1.5V
[Ignition switch OFF]
쐌 A few seconds passed after turning ignition switch
OFF
BATTERY VOLTAGE
(11 - 14V)
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
VG33E
ECM Terminals and Reference Value (Cont’d)
EC-720
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