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Home >> Toyota >> 2000 >> MR2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P1645: Multiplex Communication Malfunction >> Diagnosis & Repair
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Diagnosis & Repair

Check bus communication circuits (MPX1 and MPX2) between ECM and instrument cluster and repair as necessary. Check instrument cluster operation and repair as necessary. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.