Airflow Inspection
1. Remove the vacuum hose..
2. Blow air into the vacuum hose using your mouth from the vacuum pump side and verify that the air flows to the intake manifold side, then blow air from the intake manifold side and verify that the air does not flow to the vacuum pump side.

If there is any malfunction in the check valve, replace it with the vacuum hose as a single unit..
Air Bypass Valve Inspection [Mzr 2.3 Disi Turbo]
Compression Inspection [Mzr 2.0, Mzr 2.5]Hazard Warning Switch Inspection
1. Disconnect the negative battery cable..
2. Remove the center panel..
3. Verify that the continuity between the hazard switch terminals is as indicated
in the table.
If not as indicated in the table, replace the hazard warning switch.
4. Apply battery voltage to hazar ...
Drive Belt Auto Tensioner Inspection [Mzr 2.0, Mzr 2.5]
MZR 2.0
1. Remove the generator drive belt with the A/C drive belt still installed and
set it out of the way..
2. Verify that the drive belt auto tensioner moves smoothly in the operational
direction.
If it does not move smoothly, replace the drive belt auto tensioner..
3. T ...
Relay Inspection [Skyactiv G 2.0]
Relay Type
Connector type
Part name
Type A
Front fog light relay
Headlight relay (HI)
Headlight relay (LO)
Horn relay
TNS relay
A/C relay
Start ...