278B - P104B (DME)

278B - P104B

Information saved in
DME

Fault code
278B - P104B

Fault text
Control activation of VANOS pressure accumulator valve

Fault description


Condition for fault identification
Test condition:
none
Terminal condition: Terminal 87 on
Voltage condition:
ub > K_ED_PlusMin

Condition for fault memory entry
Driver diagnosis ATIC35
(voltage too high with valve off)

Action in service
1. Check plug and wiring harness at pressure accumulator
valve
2. Replace pressure accumulator valve

Fault effect and breakdown warning
MIL on after engine runs 2x

Driver information
Warning light:
No

Service instruction
none