Pajero II Workshop Manual 1991 · FUEL · страница 149 из 339 · Открыть оригинал PDF ↗

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IGNITION SWITCH-ST AND INHIBITOR SWITCH [A/T only]

OPERATION

The ignition switch-ST inputs a high signal to the
engine control unit while the engine is cranking:
The engine control unit provides fuel injection
control;etc ,at engine startupbasedonthis
signal:

When the ignition switch is set to START, the
battery voltage at cranking is applied through the
ignition switchandinhibitor switch to the engine
controlunit;whichdetects that the engine is
cranking:Incasetheselectorleverisin
position other than the P/N range, the battery
voltage is not applied to the engine control unit:
The inhibitor switch converts the selector lever
position (whether it is at the P/N 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.

The battery voltage in the engine control unit is
applied through a resistor to the inhibitor switch_
When the selector lever is set to the P/N range
continuity is producedbetweentheinhibitor
switch terminal f theengine control unit and
earth through the starter motor, thereby making
the terminal voltage go low:

TROUBLESHOOTING HINTS

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

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