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Home >> Volvo >> 2000 >> S70 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Turbo >> Diagnostic Tests >> P0506, P0507/ECM-990A: Control Module, Internal Fault >> Diagnostic Procedure

Diagnostic Procedure

Read out fault memory using a scan tool. Diagnose each DTC as necessary. When all other DTCs are eliminated, ECM-990A should disappear.

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