#
INTAKE AIR TEMPERATURE (IAT) SENSOR INSPECTION

id014000802200

  Note

  • Perform the following inspection according to the DATA MONITOR function (indicated by monitor item from here onwards).

## Resistance Inspection

1. Disconnect the negative battery cable.

2. Disconnect the MAF/IAT sensor connector.

3. Verify that the resistance between terminals D and E is within the specification.

  • If not within the specification, replace the MAF/IAT sensor.
  • If the monitor item condition/specification (reference) is not within the specification, even though the resistance is within the specification, carry out the "Circuit Open/Short Inspection".

Resistance

Ambient temperature (°C {°F}) | Resistance (kilohm)
--- | ---
-20 {-4} | 13.6-18.4
20 {68} | 2.21-2.69
60 {140} | 0.493-0.667

## Circuit Open/Short Inspection

1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

### Open circuit

  • If there is no continuity, the circuit is open. Repair or replace the wiring harness.
  - IAT sensor terminal D and PCM terminal 2AQ
  - IAT sensor terminal E and PCM terminal 2AY

### Short circuit

  • If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
  - IAT sensor terminal D and power supply
  - IAT sensor terminal D and body GND
  - IAT sensor terminal E and power supply