P0499

P0499 00

Canister Close Valve Circuit. Short to B+.







Fault symptom
- Check Engine

On-board diagnosis

Type of diagnosis:
- Continuous

Enable criteria:
- Battery voltage must be between 11 - 16 V.
- Engine running.
- Shut-off valve active.

- NONE of the following DTCs must be detected:
- P0444, P0445
- P0686, P0687

Fault criteria:
- When voltage on the output exceeds 2.0 V for more than 1 s.

Dependent:
- None

System reaction to a fault:
- Fuel adaption is blocked and reset.
- Purge blocked.

OK report:
- Fault criteria NOT fulfilled for 6 s.

Fault handling:
Type III
(See section Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness
- Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:
- Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Activation:
- Canister Close Valve
(See also description of readings/activations in diagnostic tool)