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:
Component Tests
Idle Air Control (IAC) Valve
1. Open the hood.
2. NOTE: Key symptom is elevated idle speed while noise is occurring.
NOTE: "Snapping" the throttle can induce the noise.
Verify the condition by operating the vehicle for a short time.
3. Inspect the IAC valv ...
Removal
1. Disconnect the battery ground cable. For additional information, refer to
Section.
2. Remove the transmission.
3. Remove the air intake scoop. For additional information, refer to Section.
4. Remove the air cleaner outlet tube. For additional informatio ...
Pinpoint Test D: LFC 15/DTC B 1887- Driver Air Bag Circuit Shorted to
Ground
Normal Operation
The restraints control module (RCM) checks for driver air bag circuit
shorts to ground by monitoring the
voltage of circuits 614 (GY/OG) and 615 (GY/WH) at pins 3 and 4. If the RCM
detects a short to
ground on either of these pins, it w ...
