Ford 2003 Mustang Workshop Manual page 2338

components converter
P1742 TCC,
internal
components
P1743 TCC,
internal
components
P1744 TCC
P1767 TCC
P1780 TCS
— TCIL
P1709 PNP switch PNP switch
a
Output circuit check, generated only by electrical symptoms.
b
May also be generated by some other non-electric transmission hardware system.
Rotunda Transmission Tester
The Transmission Tester is used to diagnosis the digital transmission range sensor and is used in
conjunction with the pinpoint tests. The tests should be carried out in order. Installing the Transmission
Tester allows separation of the vehicle electronics from transmission electronics; refer to the
Transmission Tester manual for these tests.
Digital Transmission Range (TR) Sensor Testing
(engine speed
clutch surge) across the
engagement torque converter
error clutch.
TCC solenoid TCC solenoid has
failed ON failed on by
electric,
mechanical or
hydraulic concern.
TCC solenoid TCC solenoid has
failed ON failed ON by
electric,
mechanical or
hydraulic concern.
TCC The PCM picked
up an excessive
amount of TCC
slippage during
normal vehicle
operation.
TCC solenoid TCC solenoid
circuit failure circuit fails to
during OBD provide voltage
Test drop across
solenoid. Circuit
open or shorted or
PCM Driver failure
during OBD Test.
TCS not TCS not cycled
changing during self-test.
states TCS circuit open
or shorted.
TCIL circuit TCIL circuit open
failure or shorted.
Vehicle not in
out of self-test PARK or
range NEUTRAL during
on-board
diagnostic.
present in 3rd gear.
Harsh shifts. Go To Pinpoint
Test A
Harsh shifts. Go To Pinpoint
Test A
TCC GO to Diagnosis by
slippage/erratic or Symptom.
no torque converter
clutch operation.
Short circuit: engine Go To Pinpoint
stalls in second Test A
(O/D, 2 range) at
low idle speeds with
brake applied.
Open circuit:
Torque Converter
never engages.
Rerun on-board REFER to the
diagnostic and Powertrain
cycle switch. No Control/Emissions
OD cancel when Diagnosis (PC/ED)
switch is cycled. manual.
Failed on, OD REFER to the
cancel mode on. No Powertrain
flashing TCIL for Control/Emissions
EPC failure or Diagnosis (PC/ED)
sensor. Failed off, manual
OD cancel mode
never indicated. No
flashing TCIL for
EPC sensor failure.
Rerun on-board Go To Pinpoint
diagnostic in PARK Test C
or NEUTRAL.
.
.
.
.