Mazda CX-5 Service & Repair Manual: Intake Air Temperature (Iat) Sensor Inspection
IAT Sensor No.1
Resistance inspection
NOTE:
-
Because the IAT sensor No.1 is integrated in the MAF sensor, replacing the IAT sensor No.1 includes replacement of the MAF sensor/IAT sensor No.1.
1. Disconnect the negative battery cable..
2. Disconnect the MAF sensor/IAT sensor No.1 connector.
3. 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..
|
IAT (°C {°F}) |
Resistance (Kilohms) |
|
?20 {?4} |
13.7—16.6 |
|
20 {68} |
2.49—2.79 |
|
60 {140} |
0.622—0.703 |
IAT Sensor No.2
Resistance inspection
NOTE:
-
Because the IAT sensor No.2 is integrated in the MAP sensor, replacing the IAT sensor No.2 includes replacement of the MAP sensor/IAT sensor No.2.
1. Disconnect the negative battery cable..
2. Disconnect the MAP sensor/IAT sensor No.2 connector.
3. Remove the MAP sensor/IAT sensor No.2..
4. Measure the resistance between MAP sensor/IAT sensor No.2 terminals A and B.
-
If not as specified, replace the MAP sensor/IAT sensor No.2..
|
IAT (°C {°F}) |
Resistance (Kilohms) |
|
0 {32} |
Approx. 5.9 |
|
20 {68} |
2.375—2.625 |
|
80 {176} |
Approx. 0.323 |
|
130 {266} |
Approx. 0.0893 |
Heated Oxygen Sensor (HO2 S)
Purpose/Function
Detects the oxygen concentration (theoretical air/fuel ratio) in the exhaust
gas as basic information for mainly determining the fuel injection amount and
as information ...
Intake Air Temperature (Iat) Sensor
IAT Sensor No.1
Purpose/Function
Detects the IAT before it passes through the throttle body as basic information
for mainly determining the fuel injection amount.
Detects the IAT be ...
Other materials:
Spark Plug [Skyactiv G 2.0]
Purpose, Function
The spark plug generates spark, ignition of the air-fuel mixture occurs,
and combustion of the air-fuel mixture is triggered.
Construction
The spark plug is installed to the cylinder head.
Iridium on the center electrode and platinum on the ...
Starting System [Skyactiv G 2.0]
Outline
A coaxial reduction type starter has been adopted.
Structural View
Structure
Consists of the following parts:
Starter
(See STARTER [SKYACTIV-G 2.0].)
Starter relay
(See STARTER REL ...
Purge Control
Outline
An appropriate amount of evaporative gas is fed into the intake manifold
by the purge solenoid valve operation according to the engine operation conditions.
This ensures driveability and prevents release of evaporative gas into the atmosphere.
The PCM drives the purge so ...
