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Home >> Subaru >> 1990 >> Legacy Sedan 2WD F4-2.2L SOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Engine Control Module >> Diagrams >> Diagnostic Aids >> Electrical Precautions >> Electronic Component Replacement
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Electronic Component Replacement

NOTE: Before disconnecting battery ground, access trouble codes and radio presets. Control unit memory is erased when ground is removed.

CAUTION:
^ Disconnect battery ground before servicing electronic components.

^ To avoid induced voltage spikes, all fuel and engine control system wiring should be at least 4 inches away from ignition wires.
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