WARNING:
Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
Turn off the engine and wait until it is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn it counterclockwise 2.5 turns. Step back while the pressure escapes.
When you are sure all the pressure is gone, turn the cap using the cloth, and remove it.
1. Clean the cooling system cap and the sealed part.
2. Inspect the cooling system cap for cracks or everted seal.
If there is any malfunction, replace the cooling system cap.
3. Attach the cooling system cap to the SST
or aftermarket equivalent and a radiator cap tester.

4. Hold the cooling system cap downward and apply pressure gradually. Verify that the pressure is held stable for 10 s.
If the pressure is not held stable, replace the cooling system cap.
135—155 kPa {1.38—1.58 kgf/cm2, 19.6—22.4 psi}
Cooling Fan Component Removal/Installation [Mzr 2.0, Mzr 2.5]
Cooling System Service Warnings [Mzr 2.0, Mzr 2.5]Air Fuel Ratio (A/F) Sensor Inspection [Mzr 2.0, Mzr 2.5]
A/F Sensor 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..
VSS (Vehicle speed)
RPM (Engine speed)
O2S11 (A/F sensor output current)
...
Passenger Compartment Temperature Sensor Removal/Installation [Full Auto Air
Conditioner]
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Front scuff plate.
b. Front side trim.
c. Dashboard under cover.
d. Upper panel.
e. Shift lever knob (MTX).
f. Selector lever knob (ATX).
g. Shift panel.
h. Side wall.
i. Console.
j. Hood release lever ...
Oil Seal (Control Valve Body) Replacement [Fw6 A EL]
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the air cleaner component..
4. Disconnect the control valve body connector.
5. Remove the hose clamp.
6. Cut the oil seal using a utility knife as shown in the following illustration.
CAUTION: ...