Mazda CX-9 Grand Touring 2009 Manual page 1202

2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Short to ground circuit between PCV valve heater fitting terminal B and PCM
terminal 2AU
Open circuit between PCV valve heater control terminal B and PCM terminal
2BL
POSSIBLE CAUSE
Open circuit between PCV valve heater fitting B and PCM terminal 2AU
Connector or terminal malfunction
PCV valve heater control malfunction
PCV valve heater fitting malfunction