Fault Information

Fault Code Description
The diagnosis is monitoring the tank ventilation system for tightness. Malfunction monitoring conditions The fault is detected when a leakage greater than 0.5 mm is present in the system. N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11: The Diagnosis monitor the power consumption of the leak diagnosis pump during a time frame. Malfunction monitoring conditions The fault is detected whenever the current absorbed by the leak diagnosis pump fails to achieve an appropriate threshold value within a defined characteristic map-dependent time frame.

Fault Code Description

The diagnosis is monitoring the tank ventilation system for tightness.
Malfunction monitoring conditions
The fault is detected when a leakage greater than 0.5 mm is present in the system.

N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11:
The Diagnosis monitor the power consumption of the leak diagnosis pump during a time frame.
Malfunction monitoring conditions
The fault is detected whenever the current absorbed by the leak diagnosis pump fails to achieve an appropriate threshold value within a defined characteristic map-dependent time frame.

Fault Code Conditions
General Conditions	Voltage precondition - None Temperature condition - Ambient temperature is greater than 4 °C Time condition - The diagnosis detects the fault approx. 6 to 10 hours after engine is off and logs it in 30 s after the next engine start Other preconditions - None Terminal status - Terminal 15 N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11: Voltage precondition - Vehicle voltage between 11V and 16V Temperature condition - Ambient temperature between 4.5 °C and 35.3 °C Time condition - Diagnosis starts approx. 25 s after "engine off" Other preconditions 1. Cold start (engine temperature max. 6 deg. C above ambient temperature) 2. Then drive at least 10 minutes 3. Let the engine idle with the vehicle stationary for at least 30 sec. 4. Drive for at least 5 s above 45 km/h (cumulative time) 5. Fuel tank level between 15 % and 85 % of maximum fuel level 6. Then switch off the engine, terminal 15 off 7. Wait for approx. 10 min. until diagnosis is completed Terminal status - None
Terminal Condition
Driving Conditions

Fault Time Condition
The fault is entered immediately. N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11: The fault is entered at the beginning of the next driving cycle.

Fault Time Condition

The fault is entered immediately.

N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11:
The fault is entered at the beginning of the next driving cycle.

Service Plan
- Check that fuel filler cap is correctly seated. - Check gasket of fuel filler cap for damages - Secondary fault: untight tank vent valve, see fault memory - Check that snap fastener is correctly seated. - Check gasket of snap fastener for damages - Check tank ventilation system for tightness N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11: - If faults relating to the DMTL are stored, delete the DMTL faults. - Terminate repair measures if the fault cannot be reproduced by the DMTL functional check. - Otherwise check TEV, fuel tank, filling pipe, tank cover and all lines for leaks - Replace TEV

Service Plan

- Check that fuel filler cap is correctly seated.
- Check gasket of fuel filler cap for damages
- Secondary fault: untight tank vent valve, see fault memory
- Check that snap fastener is correctly seated.
- Check gasket of snap fastener for damages
- Check tank ventilation system for tightness

N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11:
- If faults relating to the DMTL are stored, delete the DMTL faults.
- Terminate repair measures if the fault cannot be reproduced by the DMTL functional check.
- Otherwise check TEV, fuel tank, filling pipe, tank cover and all lines for leaks
- Replace TEV

Fault Impact
- none

Warnings
Warning Lights	Emissions warning light Check Control message: None
Control Center Messages

Service Notes
- none N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11: - The DMTL functional check can only be performed when no fault code relating to the DMTL is entered.

Service Notes

- none

N55 -F30 -JapLEV-HGAG-Hyb, N55 -F12 -US-AG-MSA2 -ab-MJ_3/11, N55 -F12 -US-AG-MSA2, N55 -F12 -EU-AG-MSA2 -ab-MJ_3/11, N55 -F12 -EU-AG-MSA2, N55 -F12 -Japan-AG-MSA2 -ab-MJ_3/11, N55 -F12 -Japan-AG-MSA2, N55 -F12 -EU-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F12 -EU-AG-MSA2 -MKS, N55 -F12 -Korea-AG-MSA2 -MKS-ab-MJ_3/11, N55 -F07 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F07 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F10 -US-AG-MSA2 -ALLRAD-KOREA-ab-MJ_3/11, N55 -F10 -EU-AG-MSA2 -ALLRAD-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-Allrad-ab-MJ_3/11, N55 -F30 -US-MSA-HGAG-ab-MJ_3/11, N55 -F30 -EU-MSA-HGAG-Allrad-ab-MJ_3/11:
- The DMTL functional check can only be performed when no fault code relating to the DMTL is entered.