Mazda 323 Workshop Manual Supplement page 186

CONTROLSYSTEM
F2
KNOCK SENSOR
!, -
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The knock sensor and knock control unit cannot be
inspected
individually.
When
a malfunction code number
05 is indicated,
replace.
Replacement
I_ Disconnect the knock sensor connector.
2. Raise the vehicle and support it WI safety stands.
1
93GOF2-797
3.
Remove the knock sensor with using the SST
4. Install it in the reverse order of removal.
Tightening torque:
20-34 Nm (2.0-3.5 m-kg, 14-25 ft-lb)
F2-69