Resistance inspection
NOTE:
- The MAF sensor and IAT sensor No. 1 cannot be removed as a single unit. When replacing the IAT sensor No. 1, replace the MAF sensor/IAT sensor No. 1.
- Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
- Disconnect the MAF sensor/IAT sensor No. 1 connector.
- Measure the resistance between MAF sensor/IAT sensor No. 1 terminals A and B.
- If not as specified, replace the MAF sensor/IAT sensor No. 1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION .)
RESISTANCE SPECIFICATION (REFERENCE)
| IAT (°C {°F}) | Resistance (Kilohms) |
|---|---|
| -20 {-4} | 13.7-16.6 |
| 20 {68} | 2.49-2.79 |
| 60 {140} | 0.622-0.703 |