2E44

2E44 - P150A

Information saved in
DME

Fault code
2E44 - P150A

Fault text
Intelligent battery sensor (IBS): extended communication
faulty

Fault description
Intelligent Battery Sensor, signal transmission

Condition for fault identification
Test condition:
BSD bus active
Terminal condition: Terminal 15
Voltage condition:
none

Condition for fault memory entry
25S

Action in service
1. Check BSD interface wire for intermittent shorts to UBatt
and ground
2. Check for intermittent opens
3. Disconnect other BSD interface components (alternator)
one after the other and replace as indicated
4. If fault persists after deletion of stored DTC's, replace
battery sensor

Fault effect and breakdown warning
None
none

Driver information
Warning light:
none

Service instruction
None