Mazda CX-9 Grand Touring 2009 Manual page 1048

2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
CONDITION
The test fails when the PCM can no longer detect the signal from the CMP
sensor (LH).
Connector or terminal malfunction
CMP sensor (LH) malfunction
Short to ground circuit between CMP sensor (LH) terminal A and PCM
terminal 2AB
POSSIBLE CAUSE
Short to power supply between CMP sensor (LH) terminal A and PCM
terminal 2AB
Open circuit between CMP sensor (LH) terminal A and PCM terminal 2AB
Open circuit between CMP sensor (LH) terminal B and PCM terminal 2C
PCM malfunction