IAT Sensor Resistance
| Check Item | Specifications | Prerequisite Condition | Terminal (+) | Terminal (-) |
|---|---|---|---|---|
| Internal resistance of MAPS - Resistance | Refer to the tables below |
|
Signal terminal of MAPS (Component side) | GND terminal of MAPS (Component side) |
Specification:
| Temp. (°C) | Resistance (kΩ) | Temp. (°C/°F) | Resistance (kΩ) |
|---|---|---|---|
| -40/-40 | 40.93 ~ 48.35 | 20/68 | 2.31~2.56 |
| -20/-4 | 13.89~16.02 | 40/104 | 1.07~1.20 |
| 0/32 | 5.38 ~ 6.08 | 60/140 | 0.54 ~ 0.06 |
| 10/50 | 3.48~3.9 | 80/176 | 0.29 ~ 0.33 |
- Is the measured resistance within specification?
YES
- Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification Of Repair " procedure.
NO
- Check IATS for contamination, deterioration, or damage. Substitute with a known-good IATS and check for proper operation. If the problem is corrected, replace IATS and then go to "Verification Of Repair " procedure.