
Diagnostic procedure

Dtc table
Dtc 09:er20Mazda 6 Service Manual: Three-way catalytic converter (twc) inspection
Note
Make sure that no HO2S DTCs have been detected. If detected, this
inspection is not applicable for TWC inspection.
1. Connect the WDS or equivalent and monitor PIDs as following.
Monitor the right TWC using O2S11 PID for upstream HO2S and O2S12 PID
for downstream HO2S.
2. Be ...
Mazda 6 Service Manual: Combine sensor inspection
Caution
Be careful and do not allow the lateral-G sensor to fall. If by
chance it is subjected to strong impact, replace it.
1. Connect the connector.
2. Turn ignition switch on, verify the voltage between terminals B and E
under the following conditions.
If not within the specifi ...