buttons FORD MUSTANG 2003 Workshop Manual

Pinpoint Tests speakers
zSubwoofer
amplifier.
z Circuitry. E .
z Poor quality sound from one or
more speakers (not all
speakers) z
Speaker(s).
z Circuitry.
z Audio unit.
z Subwoofer
amplifier. z
Go To Pinpoint Test F .
z Poor quality sound from all
speakers z
Audio unit.
z Speaker(s).
z Circuitry. z
Go To Pinpoint Test G .
z The subwoofer is inoperative zSubwoofer.
z Subwoofer
amplifier.
z Circuitry. z
Go To Pinpoint Test H .
z Loud popping when cycling the
ignition switch z
Audio unit.
z Circuitry. z
Go To Pinpoint Test I .
z One or more audio control
buttons (such as volume, seek,
tune and scan) are not
functional in either radio, tape,
or CD mode or all modes z
Audio unit. zREMOVE the audio
unit and SEND it to
an authorized Ford
audio system repair
facility. TEST the
system for normal
operation.
z When the headlamp switch is in
park or headlamp position and
the ignition switch is in the RUN
or ACC position, the audio unit
back lighting is inoperative — all
other I/P lighting functions are
normal z
Circuitry.
z Audio unit. z
REFER to Section 413 - 00 .
z The audio unit has two items
that can be dimmed— the audio
unit display and the control
buttons; one dims and the other
does not z
Audio unit. zREMOVE the audio
unit and SEND it to
an authorized Ford
audio system repair
facility. TEST the
system for normal
operation.
z Irregular operation of display
and indicator LEDs z
Audio unit. zREMOVE the audio
unit and SEND it to
an authorized Ford
audio system repair
facility. TEST the
system for normal
operation.
z Response time between
pressing any of the audio
control buttons and system
response is more than two
seconds z
Audio unit. zREMOVE the audio
unit and SEND it to
an authorized Ford
audio system repair
facility. TEST the
system for normal
operation. Klj . 3 ba
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PINPOINT TEST F: POOR QUALITY SOUND FROM ONE OR MORE
SPEAKERS (NOT ALL SPEAKERS) No
GO to
Pinpoint Test D .
Test Step Result / Action to
Take F1 CHECK SOUND QUALITY
z
Key in ON position.
z Turn on the audio unit.
z Carry out the speaker walk- around test by pressing preset buttons 3
and 6 simultaneously.
z Do all speakers have poor sound quality? Yes
REMOVE the
audio unit and
SEND it to an
authorized Ford
audio system
repair facility.
TEST the system
for normal
operation.
No
For convertible,
GO to
F2 .
For coupe, GO to
F4 .
For Mach 1000
subwoofer
speakers,GO to
F6 .
F2 CHECK CIRCUITS BETWEEN AFFECTED SPEAKER(S) AND
SUBWOOFER AMPLIFIERS z
Disconnect: Subwoofer Amplifier C4108a.
z Disconnect: Subwoofer Amplifier C4109b.
z Disconnect: Affected Speaker(s).
z Measure the resistance between the subwoofer amplifier and the
affected speaker(s) and between subwoofer amplifier and ground as
follows:
z Are the resistances less than 5 ohms between the subwoofer
amplifier and the affected speaker(s) and greater than 10,000 Speaker Circuits Affected Speaker Pin Subwoofer Amplifier Pin Circuit
RF 1 (convertible only) LH 7 822 (BK/LG)
RF 2 (convertible only) LH 8 287 (BK/WH)
LF 1 (convertible only) LH 7 822 (BK/LG)
LF 2 (convertible only) LH 8 287 (BK/WH)
RR 1 RH 7 822 (BK/LG)
RR 2 RH 8 287 (BK/WH)
LR 1 RH 7 822 (BK/LG)
LR 2 RH 8 287 (BK/WH) Yes
GO to
F3 .
No
REPAIR the circuit
(s) in question.
TEST the system
for normal
operation. Klj . 13 ba
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PINPOINT TEST G: POOR QUALITY SOUND FROM ALL SPEAKERS
PINPOINT TEST H: THE SUBWOOFER IS INOPERATIVE z
Turn on the audio unit.
z Is the sound quality OK? system for normal
operation.
No
GO to
F7 .
F11 CHECK THE AUDIO UNIT
z
Key in OFF position.
z Substitute the affected audio unit with a known good component.
z Key in ON position.
z Turn on the audio unit.
z Is the sound quality OK? Yes
SEND the audio
unit to an
authorized Ford
audio system
repair facility.
TEST the system
for normal
operation.
No
REMOVE the
subwoofer
amplifier and
SEND it to an
authorized Ford
audio system
repair facility.
TEST the system
for normal
operation.
Test Step Result / Action to Take
G1 CHECK POOR SOUND QUALITY IN
ALL SPEAKERS z
Key in ON position.
z Turn on the audio unit.
z Carry out the speaker walk- around test
by pressing preset buttons 3 and 6
simultaneously.
z Is there poor quality or distortion in
all speakers? Yes
REMOVE the audio unit and SEND it to an
authorized Ford audio system repair facility.
TEST the system for normal operation.
No
GO to
Pinpoint Test F .
Test Step Result / Action to
Take H1 CHECK THE SUBWOOFER OPERATION
z
Key in ON position.
z Turn on the audio unit and listen for correct subwoofer operation.
z Are all subwoofers inoperative? Yes
GO to
H16 .
No
For convertible,
GO to H2 .
For coupe, GO to
H6 . Klj . 17 ba
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PINPOINT TEST D: THE ILLUMINATED ENTRY IS INOPERATIVE
WHEN USING THE REMOTE TRANSMITTER (coupe), map C907 (convertible), right hand vanity C906, left
hand vanity C978, or luggage compartment C4111.
z Measure the voltage between inoperative demand lamp,
Circuit 705 (LG/OG), harness side and ground.
z Is the voltage greater than 10 volts? No
REPAIR the circuit in
question. REPEAT the
self-
test. CLEAR the
DTCs. C9 CHECK CIRCUIT 1205 (BK) FOR OPEN AT INOPERATIVE
DEMAND LAMP z
Measure the resistance between inoperative demand lamp
Circuit 1205 (BK), harness side and ground.
z Is the resistance less than 5 ohms? Yes
INSTALL a new demand
lamp assembly. REPEAT
the self-
test. CLEAR the
DTCs.
No
REPAIR the circuit in
question. REPEAT the
self- test. CLEAR the
DTCs. Test Step Result / Action to Take
D1 CHECK THE REMOTE TRANSMITTER
INPUT TO THE GEM z
Remove the ignition key from the ignition.
z Depress the lock and then the unlock
buttons on the remote transmitter.
z Do the doors lock when the lock button
is depressed and unlock when the
unlock button is depressed? Yes
GO to
D2 .
No
REFER to Section 501 - 14B .
D2 CHECK OPERATION OF ILLUMINATED
ENTRY WITHOUT REMOTE TRANSMITTER z
Open the driver door.
z Do the courtesy lamps illuminate? Yes
INSTALL a new GEM. For additional
information, REFER to
Section 419 - 10 .
REPEAT the self- test. CLEAR the DTCs.
No
GO to Pinpoint Test B . Klj . 14 ba
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PINPOINT TEST B: ALL DOOR LOCKS ARE INOPERATIVE z
Measure the reistance between the GEM C201b pin 4, circuit
397 (BK/WH), harness side and ground.
z Is the reistance less than 5 ohms? GO to
A3 .
No
REPAIR the circuit(s) in
question. TEST the system
for normal operation. A3 CHECK CIRCUIT 397 (BK/WH) FOR SHORT TO POWER
z
Measure the voltage between the GEM C201b pin 4, circuit
397 (BK/WH), harness side and ground.
z Is any voltage present? Yes
REPAIR the circuit. TEST
the system for normal
operation.
No
REFER to
Section 418 - 00 .
Test Step Result / Action to
Take B1 CHECK POWER LOCK INPUTS TO THE GEM
z
Connect the diagnostic tool.
z Monitor the GEM PIDS DR_LOCK, DR_UNLK, PD_LOCK,
PD_UNLK, while depressing the driver and passenger power door
lock and unlock switches.
z Do the PID values agree with the switch positions? Yes
GO to
B11 .
No
GO to B2 .
B2 ISOLATE BETWEEN THE DRIVER AND PASSENGER POWER
DOOR LOCK SWITCHES NOTE:
This PID may not be supported in the normal scan tool PID
list. It can be located in the Function test —"Transmitter Tic/Data".
When this test is activated, the appropriate results may be obtained
when pressing the keyfob buttons.
z Connect the diagnostic tool.
z Monitor the GEM PIDS DR_LOCK and DR_UNLK, while
depressing the driver power door lock and unlock switches.
z Do the PID values agree with the switch positions? Yes
GO to
B7 .
No
GO to B3 .
B3 CHECK CIRCUIT 326 (WH/VT) FOR VOLTAGE —
DRIVER SIDE z
Disconnect: Master Window/Door Lock Control Switch C508.
z Measure the voltage between master window/door lock control
switch C508 Pin 3, Circuit 326 (WH/VT), harness side and ground. Yes
GO to
B4 .
No Klj . 7 ba
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PINPOINT TEST D: THE LUGGAGE COMPARTMENT DOOR IS
INOPERATIVE USING THE REMOTE TRANSMITTER the normal scan tool PID list. It can be
located in the Function Test —
"
Transmitter Tic/DATA". When this test is
activated, the appropriate results may be
obtained when pressing the keyfob
buttons.
z Remove the ignition key from the ignition.
z Connect the diagnostic tool.
z Monitor the GEM FUNCTION TEST
TIC/DATA while pressing the lock and
unlock buttons on the remote transmitter.
z Does LAST DATA RECEIVED match
the button presses of the remote
transmitter? INSTALL a new GEM. For additional
information, REFER to
Section 419 - 10 .
REPEAT the self- test. CLEAR the DTCs.
No
GO to C4 .
C4 CHECK THE BATTERIES IN THE
REMOTE TRANSMITTER z
Install new batteries in the remote
transmitter.
z Connect the diagnostic tool.
z Monitor the GEM FUNCTION TEST
TIC/DATA while pressing the lock and
unlock buttons on the remote transmitter.
z Does LAST DATA RECEIVED match
the button presses of the remote
transmitter? Yes
SYSTEM is OK. REPEAT the self-test.
CLEAR the DTCs.
No
GO to
C5 .
C5 REPROGRAM THE REMOTE
TRANSMITTERS TO THE GEM z
NOTE: When carrying out the following
procedure it must be noted that all
previous programmed remote transmitters
will be erased. The customer needs to be
informed that any remote transmitters not
present during the programming mode will
not operate the vehicle. All remote
transmitters must be programmed at the
same time.
z Reprogram the remote transmitter to the
GEM. For additional information, refer to
Programming — Keyless Entry Remote
Transmitter .
z Connect the diagnostic tool.
z Monitor the GEM FUNCTION TEST
TIC/DATA while pressing the lock and
unlock buttons on the remote transmitter.
z Does LAST DATA RECEIVED match
the button presses of the remote
transmitter? Yes
SYSTEM is OK. REPEAT the self-test.
CLEAR the DTCs.
No
PROGRAM a new remote transmitter to the
vehicle. For additional information, REFER to
Programming
— Keyless Entry Remote
Transmitter . REPEAT the self-
test. CLEAR
the DTCs. If the problem still remains,
INSTALL a new GEM and program the remote
transmitters to the vehicle. For additional
information, REFER to Section 419 - 10 .
REPEAT the self- test. CLEAR the DTCs. Test Step Result / Action to Take
D1 CHECK IGNITION STATES
z
Connect the diagnostic tool.
z Monitor the GEM PIDS IGN_KEY, IGN_A, IGN_S, and
IGN_R while cycling the ignition switch through the OFF,
ACC, RUN, START and key out positions. Yes
GO to
D2 .
No Klj . 14 ba
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z
Do the PID values agree with the ignition switch
positions? REFER to
Section 413 - 09 for
key- in-ignition warning chime
concerns. D2 CHECK THE GEM PID LAST DATA RECEIVED FOR
LUGGAGE COMPARTMENT z
Remove the ignition key from the ignition.
z Connect the diagnostic tool.
z Monitor the GEM PID LAST DATA RECEIVED while
pressing and releasing the luggage compartment, panic,
lock, and unlock buttons of the remote transmitter.
z Does LAST DATA RECEIVED match the button
presses of the remote transmitter? Yes
GO to
D5 .
No
GO to D3 .
D3 CHECK THE BATTERIES IN THE REMOTE
TRANSMITTER z
Install new batteries in the remote transmitter.
z Connect the diagnostic tool.
z Monitor the GEM FUNCTION TEST TIC/DATA while
pressing the luggage compartment button on the remote
transmitter.
z Does LAST DATA RECEIVED match the button
presses of the remote transmitter? Yes
SYSTEM is OK. REPEAT the
self-
test. CLEAR the DTCs.
No
GO to D4 .
D4 REPROGRAM THE REMOTE TRANSMITTERS TO THE
GEM z
NOTE: When carrying out the following procedure, it
must be noted that all previous programmed remote
transmitters will be erased. The customer needs to be
informed that any remote transmitters not present during
the programming mode will not operate the vehicle. All
remote transmitters must be programmed at the same
time.
z Reprogram the remote transmitter to the GEM. For
additional information, refer to Programming — Keyless
Entry Remote Transmitter .
z Connect the diagnostic tool.
z Monitor the GEM FUNCTION TEST TIC/DATA while
pressing the lock and unlock buttons on the remote
transmitter.
z Does LAST DATA RECEIVED match the button
presses of the remote transmitter? Yes
SYSTEM is OK. REPEAT the
self-
test. CLEAR the DTCs.
No
PROGRAM a new remote
transmitter to the vehicle. For
additional information, REFER
to Programming — Keyless
Entry Remote Transmitter .
REPEAT the self- test. CLEAR
the DTCs. If the problem still
remains, INSTALL a new GEM
and program the remote
transmitters to the vehicle. For
additional information, REFER
to Section 419 - 10 . REPEAT
the self- test. CLEAR the
DTCs. D5 CHECK THE GEM OUTPUT TO THE LUGGAGE
COMPARTMENT z
Trigger the GEM active command RELEASE to ON and
OFF.
z Did the luggage compartment release? Yes
INSTALL a new GEM. For
additional information, REFER
to
Section 419 - 10 . REPEAT
the self- test. CLEAR the
DTCs.
No
GO to D6 .
D6 CHECK CIRCUIT 931 (OG) FOR OPEN
z
Disconnect: Luggage Compartment Lid Release Relay.
z Measure the voltage between luggage compartment lid
release relay Pin 2, Circuit 931 (OG), harness side and
ground; and between luggage compartment lid release Yes
GO to
D7 .
No Klj . 15 ba
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PINPOINT TEST E: PANIC FUNCTION DOES NOT OPERATE
CORRECTLY z
Is the resistance less than 5 ohms? D14 CHECK CIRCUIT 1205 (BK) FOR OPEN
z
Measure the resistance between luggage compartment
lid release solenoid C430 Pin 1, Circuit 1205 (BK),
harness side and ground.
z Is the resistance less than 5 ohms? Yes
INSTALL a new luggage
compartment lid release
switch. REPEAT the self-test.
CLEAR the DTCs.
No
REPAIR Circuit 1205 (BK).
REPEAT the self- test. CLEAR
the DTCs. Test Step Result / Action to Take
E1 CHECK IGNITION STATES
z
Connect the diagnostic tool.
z Monitor the GEM PIDS IGN_KEY, IGN_A, IGN_S, and
IGN_R while cycling the ignition switch through the OFF,
ACC, RUN, START and key out positions.
z Do the PID values agree with the ignition switch
positions? Yes
GO to
E2 .
No
REFER to Section 413 -
09 .
E2 CHECK THE GEM PID LAST DATA RECEIVED FOR PANIC
z
Remove the ignition key from the ignition.
z Connect the diagnostic tool.
z Monitor the GEM PID LAST DATA RECEIVED while pressing
and releasing the luggage compartment, panic, lock, and
unlock buttons of the remote transmitter.
z Does LAST DATA RECEIVED match the button presses
of the remote transmitter? Yes
GO to
E3 .
No
GO to Pinpoint Test D .
E3 CHECK THE COURTESY LAMPS
z
Connect the diagnostic tool.
z Trigger the GEM active command COURTESYL ON and
OFF.
z Do the courtesy lamps illuminate and turn off? Yes
GO to
E4 .
No
REFER to Section 417 -
02 . TEST the system for Klj . 18 ba
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