2B4F

2B4F - P0111

Information saved in
DME

Fault code
2B4F - P0111

Fault text
Bank 1 intake-air temperature sensor plausibility

Fault description


Condition for fault identification
Test condition:
Vehicle speed above 50 km/h for more than 20 sec. as well
as stationary behavior
Terminal condition: Engine running
Voltage condition:
none

Condition for fault memory entry
|tan[0] - tan[1]| > K_TAN_OBD_DELTA_Max,
tan_obd_delta_modell[0] > tan_obd_delta_modell[1]

Action in service
1. Check plug and wiring harness at Bank 1 HFM
2. Replace Bank 1 HFM

Fault effect and breakdown warning
No symptoms are apparent to driver

Driver information
Warning light:
No

Service instruction
none