2F77 - P322B (DME)

2F77 - P322B

Information saved in
DME

Fault code
2F77 - P322B

Fault text
DME2: Ambient-pressure sensor, plausibility

Fault description
Barometric pressure sensor, plausibility

Condition for fault identification
Test condition:
The difference in ambient barometric pressure between the
master and slave ECUs varies by +/- 60 hPa
Terminal condition: Terminal 15
Voltage condition:
9V to 16V

Condition for fault memory entry
2 sec.

Action in service
Read out the ambient barometric pressure from each control
module and compare to the current atmospheric pressure,
replace the control module providing the incorrect readings

Fault effect and breakdown warning
none

Driver information
Warning light:
MIL on in 2nd DC, US version only

Service instruction
none