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Home >> Toyota >> 2004 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P1633: Electronic Throttle Control System (ETCS) Circuit ECM Malfunction >> Diagnosis & Repair
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Diagnosis & Repair

WARNING: This page is about a different car, the 2002 Lexus GS 430. However, it is still accessible from the selected car via links, so may be relevant.

Replace ECM.

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