Ford 2003 Mustang Workshop Manual page 2037

SECTION 303-06: Starting System
DIAGNOSIS AND TESTING
Starting System
Refer to Wiring Diagrams Cell
Special Tool(s)
Digital Multimeter
105-R0051 or equivalent
Inspection and Verification
WARNING: When servicing starter motor or carrying out other underhood work in the
vicinity of the starter motor, be aware that the heavy gauge battery input lead at the starter
solenoid is "electrically hot" at all times. A protective cap or boot is provided over this terminal
that must be installed after servicing. Be sure to disconnect the battery negative cable before
servicing the starter. Failure to follow these instructions may result in personal injury.
WARNING: When working in area of the starter motor, be careful to avoid touching hot
exhaust components. Failure to follow these instructions may result in personal injury.
WARNING: When using a remote starter switch or jumper wire, be sure the ignition switch
is in the OFF position and the transmission is in PARK (A/T) or Neutral (M/T) with the parking
brake control fully applied.
1. Verify the customers concern by operating the starting system to duplicate the conditions.
2. Inspect to determine if any of the following mechanical or electrical concerns apply.
Visual Inspection Chart
Mechanical
Starter motor
Brackets
3. If the inspection reveals an obvious concern that can be readily identified, repair as necessary.
4. If the concern remains after the inspection, determine the symptom. GO to
20 , Starting System for schematic and connector information.
Electrical
Battery
Battery junction box (BJB) fuse ignition switch (40A)
Central junction box (CJB) Fuse 6 (20A)
Fuse 24 (10A)
Damaged wiring harness
Starter Relay
Loose or corroded connections
2003 Mustang Workshop Manual
Symptom Chart .