Pajero II Workshop Manual 1998 Supplement · FUEL · страница 62 из 104 · Открыть оригинал PDF ↗

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IGNITION SWITCH-ST AND INHIBITOR SWITCH [AT only]

OPERATION

The ignition switch-ST inputshigh signal to
the engine control unit while the engine is
cranking: The engine control unit provides fuel
injection control,etc_at engine startup based
on this signal.

When the ignition switch is set to START, the
battery voltage at cranking is applied through
the ignition switch and inhibitor switch to the
engine control unit, which detects that the
engine is cranking: In case the selector lever is
inposition other than the PIN rangethe
battery voltage is not applied to the engine
control unit:

The battery voltage in the engine control unit is
applied througha resistor to the inhibitor
switch.When the selector lever is set to the
PIN range, continuity is produced between the
inhibitor switch terminal of the engine control
unit and earth through the starter motor,
thereby making the terminal voltage go low:

TROUBLESHOOTING HINTS

If the inhibitor switch harness and individual part
check have resulted normal but the inhibitor switch
output is abnormal, poorly adjusted control cable is
suspected.

The inhibitor switch converts the selector lever
position (whether it is at the PIN range or at
others) into high/low voltage and inputs it to
the engine control unit; which then controls the
idle speed control servo based on this signal.

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