Expedition 4WD V8-4.6L SOHC VIN 6 (1997)
Information Bus: Flow of Diagnosis
1. Verify the customer concern by operating the system in question.
2. Visually inspect for obvious signs of electrical damage.
Electrical
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Damaged wiring harness.
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Loose or corroded connections.
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Damaged 4-Wheel Anti-Lock Brake System (4WABS) module.
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Damaged Remote Anti-Theft Personality (RAP) module.
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Damaged Generic Electronic Module (GEM).
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Damaged Integrated Air Bag Module (IABM).
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Damaged Powertrain Control Module (PCM).
3. If the concern is not visually evident, perform the System Precheck. See: Initial Inspection and Diagnostic Overview/System Precheck
