P0420

DTC P0420 - CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD

DTC DETECTING CONDITION:
- Two consecutive driving cycles with fault

TROUBLE SYMPTOM:
- Engine stalls.
- Idle mixture is out of specifications

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .

Wiring Diagram:

Step 1 - 4:

WIRING DIAGRAM