DTC P0446 [MZI-3.7]
DTC P0446 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
present?
11
VERIFY AFTER REPAIR
PROCEDURE
z
Perform the "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-
3.7]
.)
z
Are any DTCs present?
Yes Go to the applicable DTC inspection. (See
DTC
TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P0446
CV solenoid valve control circuit
DETECTION
CONDITION
z
Monitors the CV solenoid valve circuit for an electrical failure. The test fails when
the signal moves outside the minimum or maximum allowable calibrated parameters
for a specified canister vent duty cycle by PCM command.
POSSIBLE
CAUSE
z
CV solenoid valve malfunction
z
Connector or terminal malfunction
z
Short to ground between CV solenoid valve terminal B and PCM terminal 1Z
z
Open circuit between battery and CV solenoid valve terminal A
z
Short to power supply between CV solenoid valve terminal B and PCM terminal 1Z
z
Open circuit between CV solenoid valve terminal B and PCM terminal 1Z
z
PCM malfunction
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:38 AM
Page 208
© 2005 Mitchell Repair Information Company, LLC.
