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Jeep
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1997
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Grand Cherokee 4WD L6-4.0L VIN S
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Repair and Diagnosis
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Powertrain Management
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Description and Operation
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Operating Modes
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Ignition Switch Off Mode
Ignition Switch Off Mode
IGNITION SWITCH OFF MODE
When ignition switch is turned to OFF position, the
Powertrain Control Module
(PCM)
stops operating the injectors, ignition coil, Automatic Shutdown
(
ASD
)
relay
and
fuel pump relay
.