P150A

278F - P150A

Information saved in
DME

Fault code
278F - P150A

Fault text
IBS communication

Fault description
Battery Sensor BSD (Bit Serial Data Interface) Extended
Communication Circuit

Condition for fault identification
Test condition:
B_ibfebsd = True (set by IBS component driver) and Bit 1
in K_MSKIBSDFP
Terminal condition: TERM87
Voltage condition:
none

Condition for fault memory entry
20000 ms

Action in service
1. Check BSD wire for intermittent short to battery voltage
and ground
2. Check for intermittent open
3. Systematically disconnect the other BSD stations and
replace as indicated
4. If malfunction persists, after clearing fault mermory,
replace battery sensor
5. With

Fault effect and breakdown warning
Driver does not notice

Driver information
Warning light:
none

Service instruction
none