2003 FORD MUSTANG Workshop Manual

rims oil dipstick horn ignition airbag auxiliary battery location

Page 2353 of 4378

FORD MUSTANG 2003 Workshop Manual C1 VERIFY DIAGNOSTIC TROUBLE CODES
�z
Select PARK.
�z Key in OFF position.
�z NOTE: DTC codes P0705 and P0708 cannot be set by
an incorrectly adjusted digital TR sensor.
�z Carry out on board di

C1 VERIFY DIAGNOSTIC TROUBLE CODES
z
Select PARK.
z Key in OFF position.
z NOTE: DTC codes P0705 and P0708 cannot be set by
an incorrectly adjusted digital TR sensor.
z Carry out on board diagnostic test.
z Are only DTC codes P0705, P0708 present? Yes
GO to
C4 .
No
GO to C2 .
C2 VERIFY DIGITAL TRANSMISSION RANGE SENSOR
ALIGNMENT z
Check to make sure the digital TR sensor harness
connector is fully seated, pins are fully engaged in
connector and in good condition before proceeding.
z Apply the parking brake.
z Select NEUTRAL.
z Disconnect the shift cable/linkage from the manual lever.
z Verify that the digital TR Sensor Alignment Tool fits in
the appropriate slots.
z Is the digital TR sensor adjustment OK? Yes
GO to
C3 .
No
ADJUST the digital TR sensor.
PLACE transmission range
selector lever in P and CLEAR
DTCs. REPEAT OBD Tests.GO
to C3 .
C3 VERIFY SHIFT CABLE/LINKAGE ADJUSTMENT
z
Place the manual lever in the overdrive position.
z Select DRIVE.
z Reconnect the shift cable/linkage.
z Verify that the shift cable/linkage is adjusted OK. Refer
to Section 307 - 05 .
z Is the shift cable/linkage adjusted OK? Yes
GO to
C4 .
No
ADJUST the shift cable/linkage.
REFER to Section 307 - 05 .
C4 CHECK ELECTRICAL SIGNAL OPERATION
z
Select PARK.
z Disconnect: Digital TR Sensor.
z CAUTION: Do not pry on connector. This will
damage the connector and result in a transmission
concern.
z Press the button and pull out on the digital TR harness
connector.
z Inspect both ends of the connector for damage or
pushed- out pins, corrosion, loose wires and missing or
damaged seals.
z Are the connector, pins and harness damaged? Yes
REPAIR as required. CLEAR
DTCs and REPEAT OBD
Tests.
No
If diagnosing a DTC, GO to
C5
.
If diagnosing a starting concern
or a reversing lamp concern,
GO to C10 .
C5 CHECK ELECTRICAL SYSTEM OPERATION (DIGITAL
TR AND PCM) z
Key in OFF position.
z Connect the diagnostic tool.
z Connect: Digital TR Sensor.
z Key in ON position.
z Enter the following diagnostic mode on the diagnostic
tool: TR PIDS TR, TR_D, TR_V.
z Move transmission range selector lever into each gear
and stop.
z Observe any of the following PIDs, TR and TR_D, TR_V
(vehicle dependent) while wiggling harness, tapping on
sensor, or driving the vehicle. Use PIDs TR, and TR_D
for DTCs P0705, P1704, and P1705. Use PIDs TR, and
TR_V for DTC P0708.
z Compare the PIDs to the Digital Transmission Range
(TR) Sensor Diagnosis Chart.
z Do the PIDs TR, TR_D and TR_V match the Digital
Transmission Range (TR) Sensor Diagnosis chart,
and does the TR_D PID remain steady when the Yes
The problem is not in the digital
TR sensor system. REFER to
Diagnosis By Symptom
in this
section for further diagnosis.
No
If TR_D changes when wiggling
harness, tapping on the sensor,
or driving the vehicle, the
problem may be intermittent.
GO to C6 . Klj . 10 ba
222003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

Page 2354 of 4378

FORD MUSTANG 2003 Workshop Manual harness is wiggled, the sensor is tapped, or the
vehicle driven?
C6 CHECK DIGITAL TRANSMISSION RANGE SENSOR
OPERATION �z
Disconnect: Digital TR Sensor .
�z CAUTION: Do not pry on connector. This

Page 2355 of 4378

FORD MUSTANG 2003 Workshop Manual Control System Breakout Box and TR1 circuit pin 4 at
digital TR sensor connector harness side.
�z Measure the resistance between the PCM test pin 49 at
the EEC- V Control System Breakout Box and TR

Page 2356 of 4378

FORD MUSTANG 2003 Workshop Manual test pins 71 and 97 at the EEC-
V Control System
Breakout Box.
�z For vehicles equipped with a 3.8L engine measure the
resistance between PCM test pin 3 and test pins 71, 97,
51, 76, 77, 103, and

Page 2357 of 4378

FORD MUSTANG 2003 Workshop Manual 97, 51, 77, 103, and 91 at the EEC-
V Control System
Breakout Box and chassis ground.
�z For vehicles equipped with a 3.8L engine measure the
resistance between PCM test pin 50 and test pins 71,
9

Page 2358 of 4378

FORD MUSTANG 2003 Workshop Manual 97, 51, 77, 103, and 91 at the EEC-
V Control System
Breakout Box and chassis ground.
�z Are all resistances greater than 10,000 ohms? C9 CHECK FOR SHORT BETWEEN TR/PCM INPUT
SIGNAL CIRCUITS �z
F

Page 2359 of 4378

FORD MUSTANG 2003 Workshop Manual resistance between test pin 49 and pins 34, 50, and 64
at the EEC-
V Control System Breakout Box.
�z For vehicles equipped with a 3.8L engine measure the
resistance between test pin 50 and pins 3,

Page 2360 of 4378

FORD MUSTANG 2003 Workshop Manual PINPOINT TEST D: ELECTRICAL PRESSURE CONTROL (EPC)
SOLENOID �z
Are all the resistances greater than 10,000 ohms? C10 CHECK THE NON-
PCM INTERNAL CIRCUITS OF
SENSOR �z
Connect: TRS- E Cable to Tra

PINPOINT TEST D: ELECTRICAL PRESSURE CONTROL (EPC)
SOLENOID z
Are all the resistances greater than 10,000 ohms? C10 CHECK THE NON-
PCM INTERNAL CIRCUITS OF
SENSOR z
Connect: TRS- E Cable to Transmission.
z Connect: TRS- E Cable to Digital TR Sensor.
z Place the Digital TR Overlay onto Transmission Tester.
z Carry out Switch Test as instructed on the Digital TR
Overlay.
z Does the status lamp on the tester indicate RED for
the correct gear position? Yes
Concern is not in the digital TR
sensor. For starting system
concerns, REFER to
Section 303 - 06 . For reversing lamp
concerns, REFER to Section 417 - 01 . For optional circuits,
REFER to the Powertrain
Control/Emissions Diagnosis
(PC/ED) manual for diagnosis.
No
INSTALL a new digital TR
sensor. CLEAR DTCs.
REPEAT OBD Tests. Test Step Result / Action to Take
NOTE:
Refer to the Transmission Internal Harness illustration preceding these pinpoint tests. NOTE:
Read and record all DTCs. All digital TR Sensor and VSS DTCs must be repaired before
entering Output State Control (OSC). D1 ELECTRONIC DIAGNOSTICS
z
Key in OFF position.
z Select PARK.
z Check to make sure the transmission harness connector
is fully seated, pins are fully engaged in the connector and
in good condition before proceeding.
z Connect the diagnostic tool.
z Key in ON position.
z Enter the following diagnostic mode on the diagnostic tool:
Diagnostic Data Link.
z Enter the following diagnostic mode on the diagnostic tool:
PCM.
z Enter the following diagnostic mode on the diagnostic tool:
Active Command Modes.
z Enter the following diagnostic mode on the diagnostic tool:
Output State Control (OSC).
z Enter the following diagnostic mode on the diagnostic tool:
Trans- Bench Mode.
z Does the vehicle enter the Trans- Bench Mode? Yes
GO to
D2 .
No
REPEAT procedure to
ENTER Trans-Bench Mode. If
vehicle did not enter OSC,
REFER to the Powertrain
Control/Emissions Diagnosis
(PC/ED) manual for diagnosis
of PCM. Klj . 17 ba
222003 Mustang Workshop Manual
18. 11. 2011file:///C:/Ford/2000 - 2004/tsocache/SHEF_2748/S3B~us~en~ ...

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