P0443, P0444, P0445
Read the instructions below then start the fault diagnostic procedure.
Symptom: CHECK ENGINE lamp on. Possible other diagnostic trouble codes (closed loop, misfiring).
| P0443, P0444, P0445 |
EVAP Purge Valve. All embracing DTC for EVAP function.
EVAP Purge Valve Circuit. Open Circuit
EVAP Purge Valve Circuit. Short to Ground
Fault symptoms
CHECK ENGINE lamp on. Possible other diagnostic trouble codes (closed loop, misfiring).Conditions
EVAP canister purge valve activeP0444: Open circuit for longer than 2 sec.
P0445: Short circuit to ground for longer than 2 sec.
Diagnostic help
The EVAP canister purge valve can be activated with the diagnostic tool. NB! The tank must be only 85% full.| - |
Select "
Data Display / Output Control (New)".
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Select "
Canister Purge Valve".
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The valve is activated for 10 sec. at 8 Hz 50%. The valve will click when activated.
Checking the wiring harness. Intermittent faults may occur in connection with short circuits and open circuits. Jiggle the wiring harness at several points and in several directions to locate any problems in the wiring, including intermediate connectors. Observe the multimeter, scan tool or test lamp during the check.
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