Ford Mustang (1999-2004) Service Manual: Reversing Lamps
Refer to Wiring Diagrams Cell 93 , Backup Lamps for schematic and connector information.
Special Tool(s)
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73III Automotive Meter or equivalent 105-R0057 |
Inspection and Verification
1. Verify the customer concern by operating the reversing lamps.
2. Visually inspect for obvious signs of mechanical and electrical damage; refer to the following chart:
Visual Inspection Chart
Mechanical | Electrical |
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3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart.
Symptom Chart
Condition | Possible Sources | Action |
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Pinpoint Tests
PINPOINT TEST R: THE REVERSING LAMPS ARE INOPERATIVE
Test Step | Result / Action to Take |
R1 CHECK THE VOLTAGE TO THE DTR SENSOR (A/T) OR THE REVERSING LAMP SWITCH (M/T) | Yes GO to R2 . No REPAIR the circuit. TEST the system for normal operation. |
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R2 CHECK CIRCUIT 140 (BK/PK) FOR OPEN | Yes INSTALL a new DTR sensor (A/T) or reversing lamp switch (M/T); TEST the system for normal operation. No GO to R3 . |
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R3 CHECK REVERSING LAMPS GROUND | Yes REPAIR Circuit 140 (BK/PK) for open. TEST the system for normal operation. No REPAIR the circuit. TEST the system for normal operation |
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PINPOINT TEST S: THE INDIVIDUAL REVERSING LAMP IS INOPERATIVE
Test Step | Result / Action to Take |
S1 CHECK REVERSING LAMPS GROUND | Yes REPAIR Circuit 140 (BK/PK) for open. TEST the system for normal operation. No REPAIR the circuit. TEST the system for normal operation. |
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PINPOINT TEST T: THE REVERSING LAMPS ARE ON CONTINUOUSLY
Test Step | Result / Action to Take |
T1 CHECK THE CONTINUITY OF THE DTR SENSOR (A/T) OR THE REVERSING LAMP SWITCH (M/T) | Yes REPAIR Circuit 140 (BK/PK) for short to battery. TEST the system for normal operation. No INSTALL a new DTR sensor (A/T) or reversing lamp switch (M/T); TEST the system for normal operation. |
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Fog Lamps
Refer to Wiring Diagrams Cell 86 , Fog Lamps for schematic and connector
information.
Special Tool(s)
73 III Automotive Meter or
equivalent
105-R0057
Principles of Operation
The f ...
Headlamp Adjustment
Headlamp Aiming
1. The headlamp aiming procedure depends on the type of beam pattern the
headlamp is
equipped with. Vehicles may come equipped with visual optical right (VOR),
visual optical lef ...
Other materials:
Removal
1. Disconnect the battery ground cable (14301).
2. Remove the air cleaner outlet tube (9B659).
3. Remove the radiator sight shield (8C291).
4. Remove the coolant recovery reservoir (8A080).
1. Disconnect the hose.
2. Remove the bolts.
3. Remo ...
Pinpoint Test E: LFC 15/DTC B1916 - Driver Air Bag Circuit Shorted to
Battery or Ignition
Normal Operation
The restraints control module (RCM) checks for driver air bag circuit
shorts to battery or ignition by
monitoring the voltage of circuit 614 (GY/OG) and 615 (GY/WH) at pins 3 and
4. If the RCM detects a
short to battery or ignition on e ...
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 wiring and cables
The generator is belt-driven by the engine ...