FixVault
Home
›
Lexus
›
2002
›
SC 430
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Self-Diagnostics
›
Diagnostic Tests
›
DTC P1633: ECM Malfunction
›
Circuit Description
Circuit Description
DTC P1633 is set when ECM malfunctions. Possible cause is faulty ECM.