P151A

215201 - P151A

Information saved in
DME

Fault code
215201 - P151A

Fault text
Intelligent battery sensor, signal transfer: wake-up line, short
circuit to ground

Fault description
The diagnostic function monitors the wake-up wire.

Condition for fault identification
Test condition:
The fault is recognized when the IBS reports a short circuit
in the wake-up wire.
Potential problem source(s):
- Wake-up line defective
- IBS defective
Terminal condition: none
Voltage condition:
- None
Temperature condition:
- None
Time condition:
- None
Other conditions:
- none

Condition for fault memory entry
This fault is logged in the control module's fault memory if
it remains present for longer than 20 sec.

Action in service
- Disconnect IBS and check wake-up wire for short circuits
to ground
- Check to determine whether non-approved electrical
accessories have been connected to the wake-up wire
- If the diagnostic fault code has been entered with a
frequency > 3 or is present continuously then replace the
IBS

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- Anything from no symptoms to breakdown from
undercharged battery

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

Service instruction
- none