Condition For Fault Memory Entry - 1

2794 - P2526

Information saved in
DME

Fault code
2794 - P2526

Fault text
Brake servo booster vacuum sensor

Fault description


Condition for fault identification
Test condition:
B_ZUST_ML
Terminal condition: Engine running
Voltage condition:
none

Condition for fault memory entry
!( -K_MVAC_P_DIAG_PDIFF_SW
<= mvac_p_diag_pdiff
<= K_MVAC_P_DIAG_PDIFF_SW )

Action in service
1. Check electrical wiring
2. Use tester to read out sensor's measurement data
3. Inspect vacuum hoses
4. Check hose connections
5. Check non-return valves
6. Replace differential-pressure sensor

Fault effect and breakdown warning
Displayed engine rpm limit of 3500 rpm / power reduction /
MIL comes on after engine runs 2x

Driver information
Warning light:
No

Service instruction
none