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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

Diagnostic Procedure

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

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