P104D

278B - P104D

Information saved in
DME

Fault code
278B - P104D

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
ATIC35 driver diagnosis
(overtemperature)

Action in service
1. Check plug and wiring harness on pressure accumulator
valve
2. Replace pressure accumulator valve
3. Check E-box temperature, check DME

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

Driver information
Warning light:
No

Service instruction
none