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Home >> Volvo >> 2000 >> S70 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Turbo >> Diagnostic Tests >> P1651/ECM-981A: Control Module, Internal Fault >> Diagnostic Procedure

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Diagnostic Procedure

Replace ECM with a known good unit. See REMOVAL, OVERHAUL & INSTALLATION - EXCEPT S40 & V40 article.

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