FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

(DME) Condition For Fault ID - Bit 4

2791 - P150B

Information saved in
DME

Fault code
2791 - P150B

Fault text
IBS general

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

Condition for fault identification
Test condition:
Bit 4 in Ibs_errors (set by component driver)
Terminal condition: TERM15-WakeUp control activation
by IBS Intelligent Battery Sensor and critical charge state
Voltage condition:
none

Condition for fault memory entry
2000 ms

Action in service
1. Check plug and wiring harness on IBS
2. With battery sensor disconnected check TERM15/wakeup
wire for short circuit to ground
3. Check for connection of non-approved electrical devices
on TERM15/wakeup wire
4. If fault memory entry has been logged, Ba

Fault effect and breakdown warning
Driver does not notice

Driver information
Warning light:
none

Service instruction
none