DETECTION
CONDITION
z
The PCM monitors the evaporative emission (EVAP) control system fuel tank pre
sensor input signal to the PCM. The test fails when the signal average jumps abov
minimum allowable calibrated parameter.
POSSIBLE CAUSE
z
Fuel tank pressure sensor malfunction
z
Connector or terminal malfunction
z
Open circuit between fuel tank pressure sensor terminal A and PCM terminal 1AB
z
Open circuit between fuel tank pressure sensor terminal B and PCM terminal 1 AL
z
Short to the constant voltage supply circuit between fuel tank pressure sensor term
A and PCM terminal 1AB
z
Short to power supply between fuel tank pressure sensor terminal C and PCM term
1 U
z
Fuel tank pressure sensor power circuit and signal circuit are shorted each other
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:33 AM
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