FixVault
Home
›
Mazda
›
2005
›
3 SP23, 4D Sedan, Standard
›
Repair and Diagnosis
›
Engine Performance
›
Engine Control Systems
›
Middle Heated Oxygen Sensor (Ho2S) Inspection [CALIFORNIA Emission Regulation Applicable Model]
›
Middle HO2S Circuit Open/Short Inspection (Sensor)
›
Short circuit
Short circuit
If there is continuity, there is a short circuit. Repair or replace the wiring harness.
HO2S terminal A and body GND
HO2S terminal A and power supply
HO2S terminal B and power supply