Component Tests and General Diagnostics

POWER SUPPLY CIRCUIT FOR ECM

EC-MAIN-01:

EC-MAIN-02:

Wiring Diagram

Step 1 - 3:

Step 4 - 7:

Step 8 - 10:

Step 11 - 15:

Diagnostic Procedure

Component Inspection







ECM RELAY
1. Apply 12V direct current between ECM relay terminals 1 and 2.
2. Check continuity between ECM relay terminals 3 and 5, 6 and 7.
3. If NG, replace ECM relay.