DTC Description

If there is an open in the PCSV circuit, the ECM/PCM sets DTC P0444.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Electrical check

1.

Poor connection

2.

Open in power circuit and control circuit

3.

PCSV

4.

ECM/PCM

Enable Conditions

0.13% < Canister Purge duty < 99.87%

10V < Battery voltage < 16V

Threshold Value

ECU power stage diagnosis

Diagnostic Time

Continuous

MIL On Condition

2 Driving Cycles

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