ENGINE (J05E)/TROUBLESHOOTING 2–527
INSPECTION PROCEDURE: P0420
1. Set the starter key to the "LOCK" position.
2. Connect the diagnostic system (HINO DX Ⅱ ) to the vehicle.
3. Set the starter key to the "ON" position.
4. On the screen of the diagnostic system, select [Engine] and check
DTC P0420.
1
Check the DTC detected [HINO DX Ⅱ ]
Has DTC P0420 been detected?
Perform DTC-specific troubleshooting for.
• P0148
• P0421
Procedure completed.