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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Engine Control System Self-Diagnostics - V8) >> Diagnostic Tests >> DTC P1633: ECM Malfunction (Electronic Throttle Control System Circuit) >> Diagnosis & Repair

Diagnosis & Repair

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

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

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