Circuit Open/Short Inspection
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.
- Disconnect the PCM connector.
- Inspect the following wiring harnesses for an open or short circuit. (Continuity inspection)
- Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- MAF/IAT sensor terminal D and PCM terminal 1AH
- MAF/IAT sensor terminal E and PCM terminal 1AA
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- Short circuit
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- MAF/IAT sensor terminal E and power supply
- MAF/IAT sensor terminal D and power supply
- MAF/IAT sensor terminal D and body GND
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.