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Home >> Toyota >> 2000 >> MR2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P1633: ECM Malfunction (Electronic Throttle Control System Circuit) >> Diagnosis & Repair
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Diagnosis & Repair

If any other DTCs are displayed, diagnose and repair those DTCs first and retest. If only DTC P1566 is displayed, replace ECM.

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