FORD MUSTANG 2003 Workshop Manual

Klj . 3 ba
32003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

SPECIFICATIONS
SECTION 307-
05: Automatic Transaxle/Transmission External Controls 2003 Mustang Workshop Manual Torque Specifications
Description Nm lb-
ft lb-
in Steering Column Nuts 40 30 —
Shift Interlock Cable 7 — 62
Shift Cable Bracket 12 9 — Klj . 1 ba
12003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

DESCRIPTION AND OPERATION
External Controls
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 selector lever
is transferred to the transmission through the cable and down to the manual control lever on the
transmission.
Shift Interlock System
The brake/shift interlock mechanism is used on vehicles equipped with an automatic transmission.
This system is used to prevent shifting from PARK unless the brake pedal is depressed. The
brake/shift interlock system consists of an actuator attached to the key interlock assembly and
necessary wiring. The shift lock actuator is energized when the ignition switch is turned to the run
position, locking the floor mounted transmission range selector lever in the PARK position. When the
brake pedal is depressed, the shift lock actuator is deactivated and the floor mounted transmission
range selector lever can be moved out of the PARK position.
Transmission Control Switch (TCS)
The transmission control switch (TCS) is a momentary contact switch that is located on the floor
mounted transmission range selector lever. Pushing the TCS will either disengage or engage the
overdrive function of the automatic transmission. If the OVERDRIVE is disengaged, the word O/D OFF
will illuminate on the instrument cluster.
SECTION 307-
05: Automatic Transaxle/Transmission External Controls 2003 Mustang Workshop Manual Klj . 1 ba
12003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

DIAGNOSIS AND TESTING
External Controls
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.
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:
3. If the concern is not visually evident, determine the symptom. GO to Symptom Chart .
Symptom Chart SECTION 307-
05: Automatic Transaxle/Transmission External Controls 2003 Mustang Workshop Manual Special Tool(s)
73 Digital Multimeter
105-
R0051 or equivalent
Visual Inspection Chart Mechanical Electrical
z
Shift control linkage binding.
z Shift lock actuator.
z Shift control cable.
z Interlock cable. z
Circuitry.
z Central junction box (CJB) fuse:
„17 (15A)
„ 28 (15A)
„ 35 (15A)
z Brake pedal position (BPP) switch.
z Wiring harness.
z Loose or corroded connections.
z Bulb.
SYMPTOM CHART Condition
Possible Sources Action
z The shift interlock
system does not
release/lock correctly z
Circuitry.
z CJB Fuse 17 (15A)
or Fuse 35 (15A).
z Shift lock actuator.
z Brake pedal position
(BPP) switch. z
Go To Pinpoint Test A . Klj . 1 ba
62003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

Pinpoint Tests
PINPOINT TEST A: THE SHIFT INTERLOCK SYSTEM DOES NOT
RELEASE/LOCK CORRECTLY z
The shift control is
out of correct gear
relationship z
Transmission shift
cable and bracket.
z Retainer bracket.
z Shift control linkage
out of adjustment. z
Go To Pinpoint Test B .
z Transmission range
indicator does not
correspond to the
gear z
Transmission shift
cable bracket. z
TIGHTEN the bolts
holding transmission
shift cable bracket.
z Transmission shift
cable loose from the
transmission
retainer bracket. z
TIGHTEN the bolts.
z Shift linkage. zVERIFY digital
transmission range
(DTR) sensor range for
correct adjustment.
REFER to Section 307 -
01 .
z The Transmission
Control Switch (TCS)
Is Inoperative z
CJB Fuse 28 (15A).
z TCS.
z TCS not cycled
during self- test.
z Powertrain control
module (PCM).
z Circuitry. z
Go To Pinpoint Test C .
z The Transmission
Control Indicator
Lamp (TCIL) Is Not
Operating Correctly z
Bulb.
z Instrument cluster.
z Powertrain control
module. z
REFER to Section 413 -
01 .
z Excessive Shift Effort zTransmission shift
cable. z
INSTALL a new
transmission shift cable.
z Cable bracket. zADJUST the cable.
TIGHTEN the screws.
z Transmission Range
Selector Lever Will
Not Shift z
Transmission shift
cable. z
INSTALL a new
transmission shift cable.
z Broken transmission
shift cable. z
INSTALL a new
transmission shift cable. Test Step Result / Action to Take
A1 TEST THE BRAKE LIGHTS
z
Key in ON position.
z Apply the brake pedal and observe the stoplamps.
z Do the stoplamps illuminate? Yes
GO to
A2 .
No
REFER to Section 417 -Klj . 2 ba
62003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

PINPOINT TEST B: THE SHIFT CONTROL IS OUT OF CORRECT
GEAR RELATIONSHIP 01 .
A2 CHECK CIRCUIT 511 (LG) FOR AN OPEN
z
Key in OFF position.
z Disconnect: Shift Lock Actuator C2127.
z Measure the voltage between the shift lock actuator C2127- 3,
Circuit 511 (LG), harness side and ground while depressing
and releasing the brake pedal.
z Is the voltage greater than 10 volts with the brake pedal
depressed and 0 volts with the brake pedal released? Yes
GO to
A3 .
No
REPAIR the circuit. TEST
the system for normal
operation. A3 CHECK CIRCUIT 294 (WH/LB) FOR AN OPEN
z
Key in ON position.
z Measure the voltage between shift lock actuator C2127- 1,
Circuit 294 (WH/LB), harness side and ground.
z Is the voltage greater than 10 volts? Yes
GO to
A4 .
No
REPAIR the circuit. TEST
the system for normal
operation. A4 TEST CIRCUIT 1205 (BK) FOR AN OPEN
z
Measure the resistance between shift lock actuator C2127- 2,
Circuit 1205 (BK), harness side and ground.
z Is the resistance less than 5 ohms? 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. Klj . 3 ba
62003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

PINPOINT TEST C: THE TRANSMISSION CONTROL SWITCH (TCS)
IS INOPERATIVE Test Step Result / Action to Take
B1 CHECK THE SHIFT
CONTROL LINKAGE z
Key in ON position.
z Apply the brake pedal.
z Actuate the transmission
range selector lever in all
ranges.
z Observe the shift control
linkage during operation.
z Is the shift control linkage
OK? Yes
GO to
B2 .
No
REPAIR as necessary. TEST the system for normal
operation. B2 CHECK THE TRANSMISSION
SHIFT CABLE z
Check the transmission shift
cable and bracket installation
and tightness.
z Is the transmission shift
cable correctly installed
and adjusted? Yes
GO to
B3 .
No
REPAIR as necessary. TEST the system for normal
operation. B3 CHECK THE
LINKAGE/CABLE FOR CORRECT
GEAR RELATIONSHIP z
Apply the brake pedal.
z Actuate the transmission
range selector lever in all
ranges.
z Does the indicator match
the gear selection? Yes
VERIFY the correct adjustment of the digital transmission
range (DTR) sensor. REFER to
Section 307 - 01 . Adjust the
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.
Test Step Result / Action to Take
C1 CHECK THE VOLTAGE TO THE TRANSMISSION CONTROL
SWITCH z
Key in OFF position.
z Disconnect: Transmission Control Switch C279.
z Key in ON position.
z Measure the voltage between TCS C279- 3, Circuit 911
(WH/LG), harness side and ground. Yes
GO to
C2 .
No
REPAIR the circuit. TEST
the system for normal
operation. Klj . 4 ba
62003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

z
Is the voltage greater than 10 volts? C2 CHECK THE TCS
z
Measure the resistance between TCS Pin 3 (component
side), and TCS Pin 4 (component side), while depressing and
releasing the TCS.
z Is the resistance less than 5 ohms with the TCS
depressed and greater than 10,000 ohms with the TCS
released? Yes
GO to
C3 .
No
INSTALL a new TCS. Test
the system for normal
operation. C3 CHECK CIRCUIT 224 (TN/WH) FOR AN OPEN
z
Key in OFF position.
z Disconnect: PCM C175.
z Measure the resistance between TCS C279- 4, Circuit 224
(TN/WH), harness side and PCM C175- 29, Circuit 224
(TN/WH), harness side.
z Is the resistance less than 5 ohms? Yes
REFER to Powertrain
Control/Emissions
Diagnosis (PC/ED)
manual.
No
REPAIR the circuit. TEST
the system for normal
operation. Klj . 5 ba
62003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

Klj . 6 ba
62003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

GENERAL PROCEDURES
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 vehicle. For additional information, refer to Section 100 - 02 .
3. Loosen the manual control lever nut.
4. Place the transmission manual control lever in the overdrive position.
5. Tighten the nut on the manual control lever.
SECTION 307-
05: Automatic Transaxle/Transmission External Controls 2003 Mustang Workshop Manual Klj . 1 ba
22003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...