DTC P0446:00 [MZI-3.7]: Notes
WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION & POSSIBLE CAUSE
| DTC P0446:00 |
CV solenoid valve control circuit |
| DETECTION CONDITION |
- 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
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| POSSIBLE CAUSE |
- CV solenoid valve connector or terminal malfunction
- Open circuit between battery and CV solenoid valve terminal A
- Short to PCM back-up power supply between CV solenoid valve terminal B and PCM terminal 1BE
- Short to power supply between CV solenoid valve terminal B and PCM terminal 1BE
- Short to ground between CV solenoid valve terminal B and PCM terminal 1BE
- PCM connector or terminal malfunction
- Open circuit between CV solenoid valve terminal B and PCM terminal 1BE
- CV solenoid valve malfunction
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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