P0444
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE goes on after two driving cycles.
Possible smell of petrol or misfiring.
EVAP Purge Valve Circuit. Open / Short to Ground.
Fault symptoms
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CHECK ENGINE goes on after two driving cycles.
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Possible smell of petrol or misfiring.
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Conditions
The following fault symptoms apply to the diagnostic trouble code:
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Engine running and main relay voltage exceeding 10 V.
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Output voltage below 2 V when output inactive.
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Conditions fulfilled within 10 periods that must fall within 60 sec. (it normally takes approx. 1 sec. to generate the diagnostic trouble code).
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Diagnostic help
Fault diagnosis concerns an electrical fault in the connecting leads or in the valve.
Functions in the diagnostic tool related to the fault:
See also the description of activations,
, for more information.
Checking the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits. Observe the multimeter, diagnostic tool or test lamp during the check.
