

Diagnostic procedure


Dtc p0134
Dtc p0140Mazda 6 Service Manual: After repair procedure
Caution
After repairing a malfunction, perform this procedure to verify that the
malfunction has been corrected.
When this procedure is carried out, be sure to drive the vehicle at lawful
speed and pay attention to the other vehicles.
1. Connect the WDS or equivalent to the DLC-2.
2. Turn th ...
Mazda 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 ...