191A21

191A21 - P2421

Information saved in
DME

Fault code
191A21 - P2421

Fault text
Tank-venting valve: jammed open

Fault description
The diagnostic function monitors the flow through the fuel
tank's EVAP vent line.

Condition for fault identification
Test condition:
The fault is recognized when there is no drop in the current
consumed by the leakage diagnosis pump.
Potential problem source(s):
- EVAP evaporative emissions valve seizes in closed
position - Obstruction in path between intake manifold and
tank
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- none

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
- Replace EVAP evaporative emissions valve
- Check flow in lines between intake manifold and tank

Fault effect and breakdown warning
Breakdown notice:
None
Possible apparent symptoms:
None

Driver information
Warning light:
- ECE emissions warning lamp: on
- ECE electronic engine power reduction: on
- CC message: on
- US emissions warning lamp: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
None