test G FORD MUSTANG 2003 Workshop Manual

PINPOINT TEST F: THE POWER BOLSTER/LUMBAR IS
INOPERATIVE —
DRIVER psi) or more?
E11 CHECK THE SEAT BACKREST LUMBAR ADJUSTING PAD
FOR LEAKS z
Remove the in- line pressure gauge.
z Use a hand pump and inflate the seat backrest lumbar
adjusting pad to 34.47 kPa (5 psi). The seat backrest lumbar
adjusting pad should hold pressure for three hours.
z After three hours, is the pressure reading 32.41 kPa (4.7
psi) or more? Yes
INSTALL a new lumbar
seat control switch.
REFER to
Lumbar Control Switch . TEST the system
for normal operation.
No
INSTALL a new seat
backrest lumbar adjusting
pad. REFER to Lumbar Assembly . TEST the
system for normal
operation. Test Step Result / Action to Take
F1 CHECK THE BOLSTER/LUMBAR COMPRESSOR
OPERATION z
Actuate the bolster/lumbar seat control switches.
z Does the bolster/lumbar compressor motor run? Yes
GO to
F5 .
No
GO to F2 .
F2 CHECK CIRCUIT (BK) FOR VOLTAGE
z
Disconnect: Bolster/lumbar pump and solenoid module.
z Measure the voltage at bolster/lumbar pump and solenoid
module pin 1 (BK), harness side and ground.
z Is the voltage greater than 10 volts? Yes
GO to
F3 .
No
REPAIR the circuit. TEST
the system for normal
operation. F3 CHECK CIRCUIT (LG) FOR AN OPEN
z
Measure the resistance between bolster/lumbar pump and
solenoid module pin 2, (LG), harness side and ground. Yes
GO to
F4 .
No
REPAIR the circuit. TEST
the system for normal
operation. Klj . 11 ba
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z
Is the resistance less than 5 ohms? F4 CHECK THE BOLSTER/LUMBAR SEAT CONTROL
SWITCHES z
Carry out the bolster/lumbar seat control switch component
test.
Refer to Wiring Diagrams Cell 149 for schematic and
connector information.
z Did the seat control switches pass? Yes
INSTALL a new
bolster/lumbar pump and
solenoid module. REFER to
Lumbar Motor
. TEST the
system for normal
operation.
No
INSTALL a new
bolster/lumbar seat control
switch. REFER to Lumbar Control Switch . TEST the
system for normal
operation. F5 CHECK THE LUMBAR ADJUSTING SYSTEM
z
Actuate the bolster/lumbar seat control switches to the
inflate position while observing the seat backrest lumbar
adjusting pad, backrest bolster and cushion bolster.
z Did the seat bolsters/lumbar adjusting pads inflate? Yes
GO to
F9 .
No
For seat backrest lumbar,
GO to F6 . For seat
backrest bolster, GO to
F10 . For seat cushion
bolster, GO to F14 .
F6 CHECK THE SEAT BACKREST LUMBAR ADJUSTING PAD
z
Visually inspect the seat backrest lumbar adjusting pad.
z Is the seat backrest lumbar adjusting pad damaged? Yes
INSTALL a new seat
backrest lumbar adjusting
pad. REFER to
Lumbar Assembly . TEST the
system for normal
operation.
No
GO to F7 .
F7 CHECK AIR FLOW FROM LUMBAR COMPRESSOR
z
Disconnect the seat backrest lumbar adjusting hose from
the connection at the seat pivot bolt.
z Actuate the lumbar seat control switch to the inflate position
while feeling for air at the connection.
z Is air felt at the lumbar motor hose connection? Yes
GO to
F8 .
No
INSTALL a new
bolster/lumbar pump and
solenoid module. REFER to Klj . 12 ba
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Front Seat Cushion . TEST
the system for normal
operation. F8 CHECK THE SYSTEM FOR LEAKS
z
Reconnect the hose at the seat backrest lumbar pivot bolt.
z Disconnect the seat backrest lumbar adjusting hose at the
seat backrest lumbar adjusting pad.
z Install an in- line pressure gauge on the hose.
z Actuate the lumbar seat control switch to the inflate position
until the gauge reads 34.47 kPa (5 psi). The system should
hold pressure for three hours.
z After three hours, is the pressure reading 32.41 kPa (4.7
psi) or more? Yes
The system is operating
correctly. TEST the system
for normal operation.
No
GO to
F9 .
F9 CHECK THE SEAT BACKREST LUMBAR ADJUSTING PAD
FOR LEAKS z
Remove the in- line pressure gauge.
z Use a hand pump and inflate the seat backrest lumbar
adjusting pad to 34.47 kPa (5 psi). The seat backrest
lumbar adjusting pad should hold pressure for three hours.
z After three hours, is the pressure reading 32.41 kPa (4.7
psi) or more? Yes
INSTALL a new
bolster/lumbar pump and
solenoid module. REFER to
Lumbar Motor
. TEST the
system for normal
operation.
No
INSTALL a new seat
backrest lumbar adjusting
pad. REFER to Lumbar Assembly . TEST the
system for normal
operation. F10 CHECK THE SEAT BACKREST BOLSTER ADJUSTING
PADS z
Visually inspect the seat backrest bolster adjusting pad.
z Is the seat backrest bolster adjusting pad damaged? Yes
INSTALL a new seat
backrest bolster adjusting
pad. REFER to
Lumbar Assembly . TEST the
system for normal
operation.
No
GO to F11 .
F11 CHECK AIR FLOW FROM BOLSTER COMPRESSOR
z
Disconnect the seat backrest bolster adjusting hose from
the connection at the seat pivot bolt.
z Actuate the bolster seat control switch to the inflate position
while feeling for air at the connection.
z Is air felt at the lumbar motor hose connection? Yes
GO to
F12 .
No
INSTALL a new
bolster/lumbar pump and
solenoid module. REFER to
Lumbar Motor . TEST the
system for normal
operation. F12 CHECK THE SYSTEM FOR LEAKS
z
Reconnect the hose at the seat backrest bolster pivot bolt.
z Disconnect the seat backrest bolster adjusting hose at the
seat backrest bolster adjusting pad.
z Install an in- line pressure gauge on the hose. Yes
The system is operating
correctly. TEST the system
for normal operation. Klj . 13 ba
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z
Actuate the bolster seat control switch to the inflate position
until the gauge reads 34.47 kPa (5 psi). The system should
hold pressure for three hours.
z After three hours, is the pressure reading 32.41 kPa (4.7
psi) or more? No
GO to
F13 .
F13 CHECK THE SEAT BACKREST BOLSTER ADJUSTING
PAD FOR LEAKS z
Remove the in- line pressure gauge.
z Use a hand pump and inflate the seat backrest bolster
adjusting pad to 34.47 kPa (5 psi). The seat backrest bolster
adjusting pad should hold pressure for three hours.
z After three hours, is the pressure reading 32.41 kPa (4.7
psi) or more? Yes
INSTALL a new
bolster/lumbar pump and
solenoid module. REFER to
Lumbar Motor
. TEST the
system for normal
operation.
No
INSTALL a new seat
backrest bolster adjusting
pad. REFER to Lumbar Assembly . TEST the
system for normal
operation. F14 CHECK THE SEAT CUSHION BOLSTER ADJUSTING
PADS z
Visually inspect the seat cushion bolster adjusting pad.
z Is the seat cushion bolster adjusting pad damaged? Yes
INSTALL a new seat
cushion bolster adjusting
pad. REFER to
Lumbar Assembly . TEST the
system for normal
operation.
No
GO to F15 .
F15 CHECK AIR FLOW FROM BOLSTER COMPRESSOR
z
Disconnect the seat cushion bolster adjusting hose from the
connection at the seat pivot bolt.
z Actuate the bolster seat control switch to the inflate position
while feeling for air at the connection.
z Is air felt at the bolster motor hose connection? Yes
GO to
F16 .
No
INSTALL a new
bolster/lumbar pump and
solenoid module. REFER to
Lumbar Motor . TEST the
system for normal
operation. F16 CHECK THE SYSTEM FOR LEAKS
z
Reconnect the hose at the seat cushion bolster pivot bolt.
z Disconnect the seat cushion bolster adjusting hose at the
seat cushion bolster adjusting pad.
z Install an in- line pressure gauge on the hose.
z Actuate the bolster seat control switch to the inflate position
until the gauge reads 34.47 kPa (5 psi). The system should
hold pressure for three hours.
z After three hours, is the pressure reading 32.41 kPa (4.7
psi) or more? Yes
The system is operating
correctly. TEST the system
for normal operation.
No
GO to
F17 .
F17 CHECK THE SEAT CUSHION BOLSTER ADJUSTING
PAD FOR LEAKS z
Remove the in- line pressure gauge. Yes Klj . 14 ba
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z
Use a hand pump and inflate the seat cushion bolster
adjusting pad to 34.47 kPa (5 psi). The seat cushion bolster
adjusting pad should hold pressure for three hours.
z After three hours, is the pressure reading 32.41 kPa (4.7
psi) or more? INSTALL a new
bolster/lumbar pump and
solenoid module. REFER to
Lumbar Motor
. TEST the
system for normal
operation.
No
INSTALL a new seat
cushion bolster adjusting
pad. REFER to Lumbar Assembly . TEST the
system for normal
operation. Klj . 15 ba
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DIAGNOSIS AND TESTING
Glass, Frames and Mechanisms
Refer to Wiring Diagrams Cell
100 , Power Windows for schematic and connector information.
Refer to Wiring Diagrams Cell 56 , Rear Window Defrost for schematic and connector information.
Principles of Operation
Power Window Control
NOTE: Battery power and ground must be removed before disconnecting the GEM connectors to
avoid setting false DTCs.
The driver power window one- touch down operation is controlled by the generic electronic module
(GEM). This feature functions only when the ignition switch is in the RUN or ACCY positions. The GEM
determines ignition switch position by monitoring the key- in ignition, RUN/ACCY and RUN/START
circuits. The one-touch down operation is requested of the GEM by momentarily pressing the driver
window regulator control switch DOWN for 62 ms to 320 ms. The GEM uses the initial voltage input
from the down switch to begin the one- touch down operation. If the voltage input was less than 320
ms, the GEM will maintain the voltage supply to the motor down circuit. The GEM will maintain the
operation until:
zseven seconds expires.
z motor stall is detected by monitoring the current draw.
z a voltage input is received by the GEM on either the up or down switch circuits.
The ground for one- touch down operation does not pass through the GEM. The ground is supplied
through the driver window regulator control switch as with normal operation. If the GEM continues to
see voltage on the down circuit for more than 320 ms after initial activation the GEM will not effect
operation. The down circuit through the GEM is a direct connection to the motor in its normal state.
This allows the driver window regulator control switch to control the motor for normal operation.
The passenger window motors are hardwired directly to the window regulator control switches. SECTION 501-
11: Glass, Frames and Mechanisms 2003 Mustang Workshop Manual Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-
F224,
New Generation STAR (NGS)
Tester
418- F052, or equivalent
diagnostic tool 73III Automotive Meter
105-
R0057 or equivalent Klj . 1 ba
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Inspection and Verification
1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the diagnostic tool does not communicate with the vehicle, refer to the diagnostic tool manual.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If the diagnostic tool responds with: zCKT 914, CKT 915 or CKT70 - ALL ECUS NO RESP/NOT EQUIP, refer to Section 418 -
00 .
z NO RESP/NOT EQUIP for the generic electronic module (GEM), go to Pinpoint Test A.
z NO RESP/NOT EQUIP for the instrument cluster module (ICM), refer to Section 413 - 01 .
z System passed, retrieve and record the continuous diagnostic trouble codes (DTCs),
erase the continuous DTCs and carry out self- test diagnostics for the GEM or ICM.
6. If the GEM or ICM DTCs retrieved are related to the concern, go to the GEM or ICM Diagnostic Trouble Code (DTC) Index.
7. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.
GEM DIAGNOSTIC TROUBLE CODE (DTC) INDEX Visual Inspection Chart Mechanical Electrical
z
Power window
regulator
z Window run
weatherstrip
z Door window glass z
Central junction box (CJB) circuit breaker 43 (20A), fuse 39
(5A) or 23 (15A)
z Battery junction box (BJB) fuse HTD BL (40A)
z Generic electronic module (GEM)
z Window regulator control switch
z Window regulator motor
z Instrument cluster module (ICM)
z Heated rear window relay
z Rear window defrost switch
z Heated rear window grid
z Circuitry DTC Description Source Action
B1217 Horn Relay Output Driver
Circuit Failure GEM GO to
Section 501 - 14B .
B1218 Horn Relay Output Driver
Short to Battery GEM GO to
Section 501 - 14B .
B1312 Lamp Headlamp Input Circuit GEM GO to
Section 413 - 09 . Klj . 2 ba
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Short to Battery
B1317 Battery Voltage High GEM GO to
Section 414 - 00 .
B1318 Battery Voltage Low GEM GO to
Section 414 - 00 .
B1322 Door Ajar Driver Circuit Short
to Ground GEM GO to
Section 417 - 02 .
B1330 Door Ajar Passenger Circuit
Short to Ground GEM GO to
Section 417 - 02 .
B1334 Decklid Ajar Rear Door
Circuit Short to Ground GEM GO to
Section 417 - 02 .
B1339 Chime Input Request Circuit
Short to Battery GEM GO to
Section 413 - 09 .
B1340 Chime Input Request Circuit
Short to Ground GEM GO to
Section 413 - 09 .
B1342 ECU is Defective GEM CLEAR the DTC. RETRIEVE the DTCs. If DTC
B1342 is retrieved, INSTALL a new GEM. REFER to
Section 419
- 10 .
B1353 Ignition Key-
in Circuit Open GEM GO to
Section 413 - 09 .
B1359 Ignition RUN/ACC Circuit
Failure GEM GO to
Section 211 - 05 .
B1396 Power Door Lock Circuit
Short to Battery GEM GO to
Section 501 - 14B .
B1397 Power Door Unlock Circuit
Short to Battery GEM GO to
Section 501 - 14B .
B1405 Power Window Driver Down
Circuit Short to Battery GEM GO to
Pinpoint Test D for convertible or
Pinpoint Test E for coupe.
B1408 Power Window Driver Up
Circuit Short to Battery GEM GO to
Pinpoint Test D for convertible or
Pinpoint Test E for coupe.
B1410 Power Window Driver Motor
Circuit Failure GEM GO to
Pinpoint Test D for convertible or
Pinpoint Test E for coupe.
B1426 Lamp Safety Belt Circuit
Short to Battery GEM REFER to
Section 413 - 01 .
B1428 Lamp Safety Belt Circuit
Failure GEM REFER to
Section 413 - 01 .
B1431 Wiper Brake/run Relay Circuit
Failure GEM GO to
Section 501 - 16 .
B1432 Wiper Brake/run Relay Circuit
Short to Battery GEM GO to
Section 501 - 16 .
B1434 Wiper High/low Speed Relay
Coil Circuit Failure GEM GO to
Section 501 - 16 .
B1436 Wiper High/low Speed Relay
Coil Circuit Short to Battery GEM GO to
Section 501 - 16 .
B1438 Wiper Mode Select Switch
Circuit Failure GEM GO to
Section 501 - 16 .
B1441 Wiper Mode Select Switch
Circuit Short to Ground GEM GO to
Section 501 - 16 .
B1446 Wiper Park Sense Circuit
Failure GEM GO to
Section 501 - 16 .
B1448 Wiper Park Sense Circuit
Short to Battery GEM GO to
Section 501 - 16 . Klj . 3 ba
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B1450 Wiper Wash/delay Switch
Circuit Failure GEM GO to
Section 501 - 16 .
B1453 Wiper Wash/delay Switch
Circuit Short to Ground GEM GO to
Section 501 - 16 .
B1458 Wiper Washer Pump Motor
Relay Circuit Failure GEM GO to
Section 501 - 16 .
B1460 Wiper Washer Pump Motor
Relay Circuit Short to Battery GEM GO to
Section 501 - 16 .
B1462 Safety Belt Switch Circuit
Failure GEM GO to
Section 413 - 09 .
B1466 Wiper High/low Speed Not
Switching GEM GO to
Section 501 - 16 .
B1473 Wiper Low Speed Circuit
Motor Failure GEM GO to
Section 501 - 16 .
B1476 Wiper High Speed Circuit
Motor Failure GEM GO to
Section 501 - 16 .
B1498 Decklid Punch-
out Sensor
Ground Short GEM GO to
Section 419 - 01 .
B1551 Decklid Release Circuit
Failure GEM GO to
Section 501 - 14B .
B1553 Decklid Release Circuit Short
to Battery GEM GO to
Section 501 - 14B .
B1555 Ignition RUN/START Circuit
Failure GEM GO to
Section 211 - 05 .
B1603 Lamp Anti-
Theft Indicator
Circuit Failure GEM GO to
Section 419 - 01 .
B1605 Lamp Anti-
Theft Indicator
Circuit Short to Battery GEM GO to
Section 419 - 01 .
B1687 Lamp Dome Input Circuit
Short to Battery GEM GO to
Section 417 - 02 .
B1833 Door Unlock Disarm Switch
Circuit Short to Ground GEM GO to
Section 419 - 01 .
B2486 Parklamp Output Relay Driver
Circuit Failure GEM GO to
Section 419 - 01 .
B2488 Parklamp Output Relay Driver
Circuit Short to Battery GEM GO to
Section 419 - 01 .
C1189 Brake Fluid Level Sensor
Input Circuit Short to Ground GEM REFER to
Section 413 - 01 .
C1223 Lamp Brake Warning Output
Circuit Failure GEM REFER to
Section 413 - 01 .
C1225 Lamp Brake Warning Output
Circuit Short to Battery GEM REFER to
Section 413 - 01 .
ICM DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC Description Source Action
B1343 Heated Backlight Input Circuit Failure ICM GO to
Pinpoint Test H . Klj . 4 ba
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Symptom Chart
Refer to the Wiring Diagrams for the connector numbers stated in pinpoint tests.
Symptom Chart Condition
Possible Sources Action
z No communication with the
generic electronic module
(GEM) z
Central junction box
(CJB) fuse 39 (5A).
z GEM.
z Circuitry. z
GO to Pinpoint Test A .
z All power windows are
inoperative — convertible z
Circuitry.
z CJB circuit breaker
43 (20A).
z Window regulator
control switch. z
GO to Pinpoint Test B .
z All power windows are
inoperative — coupe z
Circuitry.
z CJB circuit breaker
43 (20A).
z Window regulator
control switch. z
GO to Pinpoint Test C .
z A single power window is
inoperative — driver,
convertible z
Circuitry.
z CJB fuse 43 (20A).
z Ignition switch.
z Window regulator
motor.
z Window regulator
control switch.
z GEM. z
GO to Pinpoint Test D .
z A single power window is
inoperative — driver, coupe z
Circuitry.
z CJB fuse 43 (20A).
z Ignition switch.
z Window regulator
motor.
z Window regulator
control switch.
z GEM. z
GO to Pinpoint Test E .
z The one- touch down feature
is inoperative z
Circuitry.
z CJB fuse 43 (20A).
z Ignition switch.
z Window regulator
motor.
z Window regulator
control switch.
z GEM. z
For convertible,
GO to Pinpoint Test D .
z For coupe, GO to
Pinpoint Test E .
z A single power window is
inoperative — passenger z
Circuitry.
z Driver window
regulator control
switch.
z Window regulator
motor.
z Passenger window
regulator control
switch. z
GO to Pinpoint Test F .
z A single power window is zCircuitry. zGO to Pinpoint Klj . 5 ba
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