Operation CHARM
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Jeep
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1993
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Cherokee 4WD L4-150 2.5L VIN P MFI
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Description and Operation
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Modes of Operation
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Ignition Switch Off
Ignition Switch Off
WHEN THE IGNITION SWITCH IS OFF THE POWERTRAIN CONTROL MODULE (PCM) WILL STOP OPERATING THE:
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Fuel injectors
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Ignition coil
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ASD relay
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Fuel pump relay
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