P120E

27B7 - P120E

Information saved in
DME

Fault code
27B7 - P120E

Fault text
Electric vacuum pump for Mastervac

Fault description


Condition for fault identification
Test condition:
UP28 triggered
Terminal condition: Engine running,
Voltage condition:
ub > K_DIAG_TR_Plus_Min

Condition for fault memory entry
ATIC39 diagnosis message

Action in service
1. Check electrical connection to relay
2. Replace relay

Fault effect and breakdown warning
Reduced power \ engine speed limited to 3500 rpm \ display
in instrument cluster \ MIL comes on after engine runs 2x

Driver information
Warning light:
No

Service instruction
none