Protege 2.0L
WARNING: This page is about a different car, the 2001 Mazda Protege, 2001 Mazda Millenia, 2001 Mazda MX-5 Miata, 2001 Mazda MPV, and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
Remove IAT sensor. Using ohmmeter, measure resistance between IAT sensor terminals "A" and "B". See Fig 1 . See IAT SENSOR RESISTANCE (PROTEGE 2.0L) table. If not as specified, replace IAT sensor. If resistance readings are as specified, check for open in wiring between IAT sensor harness connector terminal "A" and PCM harness connector terminal No. 39 (Blue/White wire) or between IAT sensor harness connector terminal "B" and PCM harness connector terminal No. 91 (Orange wire). Check for short to ground between IAT sensor harness connector terminal "A" and PCM harness connector terminal No. 39 (Blue/White wire). Repair as necessary.
IAT SENSOR RESISTANCE SPECIFICATIONS (PROTEGE 2.0L)
| Ambient Temperature - °F (°C) | Ohms |
|---|---|
| 68 (20) | 2000-2900 |
| 176 (80) | 270-370 |