FixVault
Home
›
Mazda
›
2010
›
5 Touring, 2.3 L
›
Repair and Diagnosis
›
Engine Performance
›
Engine Control Systems
›
Engine Control System [L3]
›
Heated Oxygen Sensor (Ho2S) Inspection
›
HO2S Circuit Open/short Inspection
›
Short circuit
Short circuit
If there is continuity, there is a short circuit. Repair or replace the wiring harness.
HO2S terminal A and body ground
HO2S terminal A and power supply
HO2S terminal B and power supply
Fig 1: Identifying HO2S Connector Terminals
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.