215A01

215A01 - P15C3

Information saved in
DME

Fault code
215A01 - P15C3

Fault text
Intelligent battery sensor (IBS): Wake-up line, line
disconnection

Fault description
L4: The diagnostic function monitors the wake-up wire
L6: The diagnostic function monitors the wake-up wire to
the junction box electronics.

Condition for fault identification
Test condition:
L4: The fault is recognized when the signal level in the
wake-up wire is implausible.
L6: The fault is recognized when the wake-up wire is open.
Potential problem source(s):
- L4: Defect in wake-up wire or IBS
- L6: Defect in wake-up wire from IBS to junction box
electronics
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- None
Time condition:
- None
Other conditions:
- none

Condition for fault memory entry
The diagnostic fault code is logged when the fault remains
present for longer than 1 min.

Action in service
- L4: Check wake-up wire, replace IBS
- L6: Check wake-up wire between IBS and junction box
electronics

Fault effect and breakdown warning
Breakdown notice:
None
Possible apparent symptoms:
None

Driver information
Warning light:
- ECE emissions warning lamp: off
- ECE electronic engine power reduction: off
- CC message: none
- US emissions warning lamp: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
None