Short circuit
WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
- If there is no continuity, there is a short circuit. Repair or replace the wiring harness.
Front and middle
- HO2S terminal C and body GND
- HO2S terminal D and power supply
- HO2S terminal D and body GND
Courtesy of MAZDA MOTORS CORP.