Ford Mustang (1999-2004) Service Manual: Charging System (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 12 , Charging System for schematic and connector information.
Special Tool(s)
![]() |
73III Automotive Meter 105-R0057 or equivalent |
![]() |
SABRE Premium Battery and Electrical System Tester 010-00736 or equivalent |
Principles of Operation




Charging System (Description and Operation)
The charging system is a negative ground system consisting of the
following:
generator
internal voltage regulator
charging system warning indicator
storage battery
necessary wirin ...
Functionality
With the ignition switch in the RUN position, voltage is applied
through the warning indicator I circuit
904 (LG/RD) to the voltage regulator. This turns the regulator on,
allowing current to ...
Other materials:
Pinpoint Tests
PINPOINT TEST P1464: DTC P1464: A/C DEMAND OUT OF SELFTEST
RANGE
Test Step
Result / Action to Take
P14641 RECHECK FOR THE DTC
YesGO to P14642 .
No
The system is functioning
correctly. This DTC will set if the
A/C is turned on when carryi ...
Removal
1. Remove brake master cylinder filler cap (2162). Check brake fluid
level in brake master cylinder
reservoir (2K478). Remove fluid until brake master cylinder reservoir is
half full.
2. Raise and support the vehicle.
3. Remove the wheel and ...
Pinpoint Test G: LFC 16/DTC B1925 - Passenger Air Bag Circuit Shorted to
Battery or Ignition
Normal Operation
The restraints control module (RCM) checks for passenger air bag circuit
shorts to battery or ignition
by monitoring the voltage of circuits 607 (LB/OG) and 616 (PK/BK) at pins 6
and 7. If the RCM detects
a short to battery or ignition ...


