DTC P0446: Notes
DTC P0446 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0446 |
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 malfunction
- Connector or terminal malfunction
- Short to ground between CV solenoid valve terminal B and PCM terminal 1Z
- Open circuit between battery and CV solenoid valve terminal A
- Short to power supply between CV solenoid valve terminal B and PCM terminal 1Z
- Open circuit between CV solenoid valve terminal B and PCM terminal 1Z
- PCM malfunction
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 Courtesy of MAZDA MOTORS CORP.
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