Ford Mustang (1999-2004) Service Manual: External Controls (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 37 , Shift Lock for schematic and connector information.
Refer to Wiring Diagrams Cell 29 , Transmission Control for schematic and connector information.
Special Tool(s)
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73 Digital Multimeter 105-R0051 or equivalent |
Inspection and Verification
1. Verify the customer concern by operating the transmission external control.
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. GO to Symptom Chart .
Symptom Chart
Condition | Possible Sources | Action |
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Pinpoint Tests
PINPOINT TEST A: THE SHIFT INTERLOCK SYSTEM DOES NOT RELEASE/LOCK CORRECTLY
Test Step | Result / Action to Take |
A1 TEST THE BRAKE LIGHTS | Yes GO to A2 . No REFER to Section |
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A2 CHECK CIRCUIT 511 (LG) FOR AN OPEN | Yes GO to A3 . No REPAIR the circuit. TEST the system for normal operation. |
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A3 CHECK CIRCUIT 294 (WH/LB) FOR AN OPEN | Yes GO to A4 . No REPAIR the circuit. TEST the system for normal operation. |
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A4 TEST CIRCUIT 1205 (BK) FOR AN OPEN | Yes INSTALL a new shift lock actuator. REFER to Brake Shift Interlock Actuator . TEST the system for normal operation. No REPAIR the circuit. TEST the system for normal operation |
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PINPOINT TEST B: THE SHIFT CONTROL IS OUT OF CORRECT GEAR RELATIONSHIP
Test Step | Result / Action to Take |
B1 CHECK THE SHIFT CONTROL LINKAGE | Yes GO to B2 . No REPAIR as necessary. TEST the system for normal operation. |
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B2 CHECK THE TRANSMISSION SHIFT CABLE | Yes GO to B3 . No REPAIR as necessary. TEST the system for normal operation. |
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B3 CHECK THE LINKAGE/CABLE FOR CORRECT GEAR RELATIONSHIP | Yes VERIFY the correct adjustment of the digital transmission range (DTR) sensor. REFER to Section. digital DTR sensor if necessary. TEST the system for normal operation. No ADJUST the transmission shift cable. REFER to Cable Adjustment . TEST the system for normal operation. |
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PINPOINT TEST C: THE TRANSMISSION CONTROL SWITCH (TCS) IS INOPERATIVE
Test Step | Result / Action to Take |
C1 CHECK THE VOLTAGE TO THE TRANSMISSION CONTROL SWITCH | Yes GO to C2 . No REPAIR the circuit. TEST the system for normal operation. |
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C2 CHECK THE TCS | Yes GO to C3 . No INSTALL a new TCS. Test the system for normal operation. |
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C3 CHECK CIRCUIT 224 (TN/WH) FOR AN OPEN | Yes REFER to Powertrain Control/Emissions Diagnosis (PC/ED) manual. No REPAIR the circuit. TEST the system for normal operation |
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External Controls (Description and Operation)
The transmission shift cable transfers the transmission operating mode from
the gearshift lever to the
automatic transmission (7003). The indicated position of the transmission floor
mounted selecto ...
Cable Adjustment
1. NOTE: Make sure that the range selector lever is tight
against the rearward overdrive stop.
Place the transmission range selector lever in the overdrive
position.
2. Raise and support the ...
Other materials:
Support Straps
Removal
WARNING: Do not smoke, carry lighted tobacco or an open flame of any
type when
working on or near any fuel-related components. Highly flammable mixtures are
always present
and may be ignited, possibly resulting in personal injury.
WARNING: Fuel suppl ...
Installation
1. CAUTION: Make sure the hardened washer is installed between the
lower
suspension arm and bushing and the shock absorber. Failure to do so can result
in
damage and failure of the lower suspension arm and bushing.
NOTE: The toe link bolt and nuts are of a ...
Switch - Speed Control Actuator
Removal
1. Remove the steering wheel; refer to Section.
2. Remove the steering wheel rear cover.
1. Remove the screws.
2. Remove the steering wheel rear cover.
3. Remove the ribbon harness from the clips.
4. Remove the horn contact electrical c ...