Service Manual DF200AP Power Head[Engine Control[Diagnostic Information And Procedures][Self-Diagnostic Code “4 – 1” Model Distinction Switch]]

Wiring Diagram

Troubleshooting

Step 1

1. Disconnect the ECM connectors from ECM with the main switch “OFF".

2. Check the ECM connector for loose or poor contacts.
   If OK, then check the continuity between No. 2 terminal of ECM connector (harness side) and engine body ground.

No. 2 terminal continuity
Regular rotation condition: No continuity
Counter rotation condition: Continuity

Is the result OK?

Yes Counter/ Regular select connector and its circuit are in good condition.

No

• Faulty counter / regular select connector.
• “O/Y" wire shorted to “B” wire, “O/Y" wire open, poor “O/Y" wire connection, or poor counter/ regular select connector connection.
• If the wiring and connection is OK, intermittent trouble or a faulty ECM.