Ford Mustang Service Manual: Lamp Switch - Brake Pedal Position (BPP)
Headlamps
Refer to Wiring Diagrams Cell 85 , Headlamps for schematic and connector information.
Special Tool(s)
73III Automotive Meter or equivalent 105-R0057 |
Inspection and Verification
1. Verify the customer concern by operating the headlamps.
2. Visually inspect for the following obvious signs of mechanical and electrical damage.
Visual Inspection Chart
Mechanical | Electrical |
|
|
3. If the concern is not visually evident, determine the symptom and proceed to Symptom Chart.
Symptom Chart
Condition | Possible Sources | Action |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pinpoint Tests
PINPOINT TEST A: BOTH HEADLAMPS ARE INOPERATIVE
Test Step | Result / Action to Take |
A1 CHECK THE VOLTAGE TO THE HEADLAMP SWITCH | Yes GO to A2 . No REPAIR the circuit. TEST the system for normal operation. |
|
|
A2 CHECK CIRCUIT 15 (RD/YE) FOR OPEN | Yes RECONNECT headlamp switch C205. GO to A3 . No REPAIR the circuit. TEST the system for normal operation. |
|
|
A3 CHECK THE VOLTAGE TO THE MULTIFUNCTION SWITCH | Yes INSTALL a new multifunction switch; REFER to Section. TEST the system for normal operation. No INSTALL a new headlamp switch; REFER to Lamp Switch-Headlamp in this section. TEST the system for normal operation. |
|
PINPOINT TEST B: THE LOW BEAMS ARE INOPERATIVE
Test Step | Result / Action to Take |
B1 CHECK THE VOLTAGE TO CJB FUSE 4 (7.5A) AND CJB FUSE 10 (7.5A) | Yes Go To Pinpoint Test D . No GO to B2 . |
|
|
B2 CHECK CIRCUIT 13 (RD/BK) FOR OPEN | Yes INSTALL a new multifunction switch; REFER to Section. TEST the system for normal operation. No REPAIR the circuit. TEST the system for normal operation. |
|
PINPOINT TEST C: THE HIGH BEAMS ARE INOPERATIVE
Test Step | Result / Action to Take |
C1 CHECK THE CIRCUIT 12 (LG/BK) | Yes RECONNECT the LH headlamp (13008). GO to C2 . No REPAIR the circuit. TEST the system for normal operation. |
|
|
C2 CHECK THE VOLTAGE TO CJB FUSE 38 (20A) | Yes Go To Pinpoint Test E . No GO to C3 . |
|
|
C3 CHECK CIRCUIT 632 (GY/OG) FOR OPEN | Yes INSTALL a new multifunction switch; REFER to Section. TEST the system for normal operation. No REPAIR the circuit. TEST the system for normal operation |
|
PINPOINT TEST D: ONE LOW BEAM HEADLAMP IS INOPERATIVE
Test Step | Result / Action to Take |
D1 CHECK THE VOLTAGE TO THE INOPERATIVE HEADLAMP BULB | Yes INSTALL a new headlamp bulb; REFER to Bulb-Headlamp in this section. TEST the system for normal operation. No REPAIR the circuit. TEST the system for normal operation. |
|
PINPOINT TEST E: ONE HIGH BEAM HEADLAMP IS INOPERATIVE
Test Step | Result / Action to Take |
E1 CHECK THE VOLTAGE TO THE INOPERATIVE HEADLAMP BULB | Yes INSTALL a new headlamp bulb; REFER to Bulb- Headlamp in this section. TEST the system for normal operation. No REPAIR the circuit. TEST the system for normal operation. |
|
PINPOINT TEST F: THE HEADLAMPS ARE ON CONTINUOUSLY
Test Step | Result / Action to Take |
F1 CHECK THE HEADLAMP SWITCH | Yes GO to F2 . No INSTALL a new headlamp switch; REFER to Lamp Switch-Headlamp in this section. TEST the system for normal operation. |
|
|
F2 CHECK THE MULTIFUNCTION SWITCH | Yes GO to F4 . No GO to F3 . |
|
|
F3 CHECK CIRCUIT 15 (RD/YE) FOR SHORT TO POWER | Yes REPAIR the circuit. TEST the system for normal operation. No INSTALL a new multifunction switch; REFER to Section 211- 05 . TEST the system for normal operation. |
|
|
F4 CHECK CIRCUIT 13 (RD/BK) FOR SHORT TO POWER | Yes REPAIR the circuit. TEST the system for normal operation. No GO to F5 . |
|
|
F5 CHECK CIRCUIT 1056 (DB, LG) FOR VOLTAGE | Yes REPAIR Circuit 1056 (DB/LG). TEST the system for normal operations. No REPAIR Circuit 1055 (WH/LG). TEST the system for normal operations. |
|
Lamp Switch - Headlamp
Headlamps Refer to Wiring Diagrams Cell 85 , Headlamps for schematic and connector information. Special Tool(s) 73III Automotive Meter or equivalent 105-R0057 Inspection and V ...Interior Lighting
Interior Lighting The interior lighting system consists of the following: map/dome lamp assembly rear-high mount/cargo lamp assembly dimmer switch door ajar switch (located on the door latc ...Other materials:
Air Cleaner Outlet Pipe - 3.8L
Intake Air Distribution and Filtering - Supercharger,
Charge Air Cooler
The supercharger (SC) is a positive displacement pump. Its purpose is to
supply an excess volume of
intake air to the engine by increasing air pressure and density in the
intake man ...
Removal
Removal
CAUTION: Suspension fasteners are critical parts because they affect
performance of vital
components and systems and their failure can result in major service expense. A
new part with
the same part number must be installed if installation becomes nec ...
Disassembly
Disassembly
1. Remove the driveshaft (4602). For additional information, refer to
Driveshaft in this section.
2. CAUTION: Under no circumstances is the driveshaft assembly to be
clamped in the
jaws of a vise or similar holding fixture. Denting or localizing ...