Mazda 6 2002 Workshop Manual page 75

Spool Valve Operation Inspection
1. Disconnect the negative battery cable.
2. Remove the oil control valve.
3. Verify that the spool valve in the oil control valve
is in the maimum valve timing retard position as
indicated in the figure.
• If not as specified, replace the oil control
valve.
4. Verify that the battery is fully charged.
• If not as specified, recharge the battery.
5. Apply battery positive voltage between the oil
control valve terminals and verify that the spool
valve operates and moves to the maimum valve
timing advance position.
• If not as specified, replace the oil control
valve.
Note
• When applying battery positive voltage between the oil control valve terminals, the connection can be
either of the following:
— Positive battery cable to terminal A, negative battery cable to terminal B
— Positive battery cable to terminal B, negative battery cable to terminal A
6. Stop applying battery positive voltage and verify
that the spool valve returns to the maimum valve
timing retard position.
• If not as specified, replace the oil control
valve.
End Of Sie
B–34
OIL CONTROL VALVE (OCV)
AME2226W003
AME2226W004