P149B

191B02 - P149B

Information saved in
DME

Fault code
191B02 - P149B

Fault text
Tank safety valve shut-off valve, activation: Short circuit to
earth

Fault description
The diagnostic function monitors electrical activation of the
tank cutoff valve.

Condition for fault identification
Test condition:
The fault is recognized when the diagnostic fault code for
the sensor is logged on the PT CAN (OBD services
message) from the TFE1 ECU (ECU for tank electronic
functions).
Potential problem source(s):
- Defective wiring harness
- Tank cutoff valve defective
Terminal condition: Terminal 15
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
- Check wiring harness at TFE1 ECU and tank cutoff valve
- Replace tank cutoff valve

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

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