Mazda Mazda6 - Intake Air Temperature (Iat) Sensor No.2 Inspection

CONTROL SYSTEM
F2–75
F2
IAT Sensor No.1 Resistance Inspection
1. Disconnect the MAF/IAT sensor connector.
2. Measure the resistance between MAF/IAT sensor terminals D and E using an ohmmeter.
• If not as specified, replace the MAF/IAT sensor.
Specification
IAT Sensor No.1 CIrcuit Open/Short Inspection
1. Inspect for open/short circuit in the following wiring harnesses.
• If there is open/short circuit, repair or replace wiring harnesses.
Open circuit
• Signal circuit
— MAF/IAT sensor terminal D and PCM terminal 60
• GND circuit
— MAF/IAT sensor terminal E and PCM terminal 91
Short circuit
• Signal circuit
— MAF/IAT sensor terminal D and PCM terminal 60 to power circuit
— MAF/IAT sensor terminal D and PCM terminal 60 to GND
End Of Sie
INTAKE AIR TEMPERATURE (IAT) SENSOR NO.2 INSPECTION
A6E404018845201
Note
• Perform the following test only when directed.
Resistance Inspection
1. Place the IAT sensor No.2 in water with a thermometer, and heat the water gradually.
2. Measure the resistance between the IAT sensor
No.2 terminals using an ohmmeter.
• If not as specified, replace the IAT sensor
No.2.
Specification
Circuit Open/Short Inspection
1. Inspect for open/short circuit in the following wiring harnesses.
• If there is open/short circuit, repair or replace wiring harnesses.
Open circuit
• Signal circuit
— IAT sensor No.2 terminal A and PCM terminal 8
• GND circuit
— IAT sensor No.2 terminal B and PCM terminal 91
Short circuit
• Signal circuit
— IAT sensor No.2 terminal A and PCM terminal 8 to power circuit
— IAT sensor No.2 terminal A and PCM terminal 8 to GND
End Of Sie
Ambient temperature (°C
{°F})
Resistance (kilohm)
20 {68} 2.21—2.69
Water temperature (°C {°F}) Resistance (kilohm)
20 {68} 2.21—2.69
80 {176} 0.29—0.35
A
B
A6E40702044