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Home >> Chevy Truck >> 1998 >> Express 1/2 Ton Van V8-305 5.0L VIN M SFI >> Repair and Diagnosis >> Steering and Suspension >> Steering >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Self Diagnostics

Self Diagnostics

The EVO/Passlock Module performs self-diagnostics of the EVO system and can detect and isolate system failures. When a malfunction is detected, the EVO/Passlock Module sets a corresponding Diagnostic Trouble Code (DTC).
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