Mazda 3 Service Manual: Heated Oxygen Sensor (HO2 S) Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
-
A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Disconnect the HO2S connector.
4. Remove the HO2S using the SST
.
MZR 2.0/MZR 2.5 (Mexico)
MZR 2.5 (Except for Mexico)
5. Install in the reverse order of removal.
Heated Oxygen Sensor (HO2 S) Inspection [Mzr 2.0, Mzr 2.5]
HO2S Inspection
1. Connect the M-MDS to the DLC-2.
2. Switch the ignition to ON.
3. Warm up the engine to normal operating temperature.
4. Access the following PIDs using the M-MDS..
...
Intake Air Temperature (Iat) Sensor Inspection [Mzr 2.0, Mzr 2.5]
Resistance Inspection
NOTE:
Because the IAT sensor is integrated in the MAF sensor, replacing the IAT
sensor includes replacement of the MAF/IAT sensor.
1. Remove the battery cover.. ...
Other materials:
Intermediate Sensor Inspection [FS5 A EL]
On-Vehicle Inspection
1. Inspect the power supply circuit for the intermediate sensor.
a. Set the battery component (ex: battery, battery tray and PCM component) out
of the way.
b. Disconnect the intermediate sensor connector.
c. Switch the ignition to ON (engine off).
d. Measure the ...
Inside Trunk Release Lever
(4-Door)
Your vehicle is equipped with an inside
trunk release lever that provides a means
of escape for children and adults in the
event they become locked inside the trunk.
No matter how careful adults might be
with keys and locking their cars, parents
should be aware that children may be
tempted ...
Starting the Engine
WARNING
Radio waves from the key may aff ect
medical devices such as pacemakers:
Before using the key near people who
use medical devices, ask the medical
device manufacturer or your physician
if radio waves from the key will aff ect
the device.
NOTE
The key mus ...
