P0601

DETECTING CONDITION AND TROUBLE AREA

DTC CONFIRMATION PROCEDURE
1. Turn ignition switch OFF.
2. Clear DTC with ignition switch ON.
3. Start engine and run it at idle if possible.
4. Check pending DTC in "ON BOARD TEST" or "PENDING DTC" mode and DTC in "DTC" mode.

INSPECTION
Substitute a known-good ECM and recheck.