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Home >> Toyota >> 2002 >> Prius >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P1633: Engine Control Module Malfunction (Electronic Throttle Control System Circuit) >> Diagnosis & Repair
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Diagnosis & Repair

If DTC P1633 exists, replace ECM. ECM is located behind glove box. See Figure.