Service Manual — page 193 of 715

Fuel System (DFI) › Oxygen Sensor Heater Power Source Voltage Inspection

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FUEL SYSTEM (DFI) 3-103
Oxygen Sensor Heater (Service Code 67) (DTC P0030)
Oxygen Sensor Circuit

  1. ECU
  2. Frame Ground 2
  3. Engine Ground
  4. Battery 12 V 8 Ah
  5. Main Fuse 30 A
  6. ECU Fuse 15 A
  7. Starter Relay
  8. Relay Box
  9. ECU Main Relay
 10. Fuse Box 1
 11. Ignition Fuse 15 A
 12. Ignition Switch
 13. Oxygen Sensor