P325A

210301 - P325A

Information saved in
DME

Fault code
210301 - P325A

Fault text
Alternator, plausibility, electric: calculated

Fault description
The diagnostic function monitors the voltage of the onboard
electrical system and compares it with the specified voltage.

Condition for fault identification
Test condition:
The fault is recognized when the voltage in the vehicle
electrical system is less than 11 V and the specified
alternator voltage is greater than 14 V.
Potential problem source(s):
- Positive wire not correctly connected to battery
- Ground not correctly connected
- Defective battery
- Defective regulator
- Alternator defect
Terminal condition: none
Voltage condition:
- Alternator specified voltage one time for at least 5 sec.:
exceeds electrical system voltage + 1.0 V or greater than 14
V
Temperature condition:
- None
Time condition:
- 10 sec.
Other conditions:
- Engine on
- Alternator not fully loaded
- No diagnostic fault codes stored for alternator

Condition for fault memory entry
The diagnostic fault code is logged when the fault remains
present for longer than 3.5 min.

Action in service
- Check positive wire for correct installation
- Check ground wire for correct installation
- Check battery
- If the IMIB is available, perform an alternator test
- If no IMIB is available, replace alternator

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- Charge indicator lamp lights up
- Breakdown in extreme cases

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: on

Service instruction
- Can occur during vehicle servicing when external power
source is connected, etc.