Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Voltage Regulator

Contact Voltage External Design
Designation
Bosch AD 1/14 V
Regulator Temperature
12.60 at 25 Volts At Degrees Celsius (V @ deg C)
Test Values
Alternator Speed
4000 Revolutions Per Minute (rpm)
Engine Speed
2000 Revolutions Per Minute (rpm)
Load On Alternator
3-7 Ampere (A)
Control Voltage
at B+ and D- on alternator
Cold Reading
1 minute
13.9-14.8 Volts (V)
Warm Reading
30 minutes
13.8-14.3 Volts (V)
Load Control Tolerance
13.4 -14.3 V 28 Ampere (A)
13.3 - 13.9 V
44 Ampere (A)