Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics

ECM Terminals And Reference Value:






EC-MAIN-01 (Main Power Supply And Ground Circuit):




EC-MAIN-02 (Main Power Supply And Ground Circuit):




Wiring Diagram

Diagnostic Procedure Step 1 - 4:




Diagnostic Procedure Step 5 - 8:




Diagnostic Procedure Step 9 - 11:




Diagnostic Procedure Step 12 - 14:




Diagnostic Procedure Step 15 - 19:




Diagnostic Procedure Step 20:




Diagnostic Procedure