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Home >> Ford >> 1997 >> Expedition 2WD V8-4.6L SOHC VIN 6 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service Precautions >> Electronic Component Replacement

Electronic Component Replacement


1. Before servicing electronic components, disconnect the battery ground.

NOTE: Before removing battery ground, access trouble codes. PCM memory will be erased if ground cable is removed.

2. Fuel and Engine Control System wiring should be at least 4 inches away from ignition wires.