wiring FORD MUSTANG 2003 Workshop Manual

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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z
Is the resistance less than 5 ohms? D5 CHECK THE DRIVER WINDOW REGULATOR CONTROL
SWITCH z
Carry out the driver window regulator control switch
component test. Refer to the Wiring Diagrams Cell 149,
Component Testing.
z Did the driver window regulator control switch pass? Yes
GO to
D6 .
No
INSTALL a new driver
window regulator control
switch. REFER to
Switch — Window
Regulator Control in this
section. TEST the system
for normal operation. D6 CHECK CIRCUIT 226 (WH/BK) FOR A SHORT TO BATTERY
z
Key in OFF position.
z Disconnect: GEM C201a.
z Measure the voltage between GEM C201a pin 2, circuit 226
(WH/BK), harness side and ground.
z Key in ON position.
z Measure the voltage between GEM C201a pin 2, circuit 226
(WH/BK), harness side and ground.
z Is either voltage greater than 10 volts? Yes
REPAIR the circuit. TEST
the system for normal
operation.
No
GO to
D7 .
D7 CHECK CIRCUIT 991 (TN/LB) AND 992 (WH/BK) FOR AN
OPEN Klj . 10 ba
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position while monitoring PIDs.
z Did the PID values agree with the ignition switch positions? No
REFER to
Section 211 -
05 for ignition switch
diagnosis. E2 CHECK THE DRIVER WINDOW REGULATOR CONTROL
SWITCH INPUT TO THE GEM z
Key in ON position.
z Enter the following diagnostic mode on the diagnostic tool: GEM
PID D_UP_SW and D_DN_SW.
z Actuate the driver window regulator control switch to the UP and
DOWN position.
z Did the PID values agree with the driver window regulator
control switch positions? Yes
GO to
E9 .
No
GO to E3 .
E3 CHECK THE POWER SUPPLY TO THE WINDOW REGULATOR
CONTROL SWITCH z
Disconnect: Driver Window Regulator Control Switch C508.
z Key in ON position.
z Measure the voltage between driver window regulator control
switch C508 pin 10, circuit 400 (LB/BK), harness side and
ground.
z Is the voltage greater than 10 volts? Yes
GO to
E4 .
No
GO to E8 .
E4 CHECK CIRCUIT 1205 (BK) FOR AN OPEN
z
Measure the resistance between driver window regulator control
switch C508 pin 7, circuit 1205 (BK), harness side and ground;
and between driver window regulator control switch C508 pin
12, circuit 1205 (BK), harness side and ground.
z Is the resistance less than 5 ohms? Yes
GO to
E5 .
No
REPAIR the circuit.
TEST the system for
normal operation. E5 CHECK THE DRIVER WINDOW REGULATOR CONTROL
SWITCH z
Carry out the driver window regulator control switch component
test. Refer to the Wiring Diagrams Cell 149, Component
Testing.
z Did the driver window regulator control switch pass? Yes
GO to
E6 .
No
INSTALL a new driver Klj . 14 ba
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z
Is the resistance less than 5 ohms? section. TEST the system
for normal operation.
No
REPAIR the circuit. TEST
the system for normal
operation.
F13 CHECK CIRCUIT 333 (YE/RD) FOR AN OPEN
z
Measure the resistance between passenger window regulator
control switch C629 pin 10, circuit 333 (YE/RD), harness side
and passenger window regulator motor C623, circuit 333
(YE/RD), harness side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new
passenger window
regulator control switch.
TEST the system for
normal operation.
No
REPAIR the circuit. TEST
the system for normal
operation.
F14 CHECK THE DRIVER WINDOW REGULATOR CONTROL
SWITCH z
Carry out the driver window regulator control switch
component test. REFER to Wiring Diagrams Cell 149,
Component Testing.
z Is the driver window regulator control switch OK? Yes
INSTALL a new
passenger window
regulator motor. REFER
to
Motor — Window
Regulator in this section.
TEST the system for
normal operation.
No
INSTALL a new driver
window regulator control
switch. REFER to
Switch — Window
Regulator Control in this
section. TEST the system
for normal operation. F15 CHECK THE POWER SUPPLY TO THE PASSENGER
WINDOW REGULATOR CONTROL SWITCH z
Key in OFF position.
z Disconnect: Passenger Window Regulator Control Switch
C629.
z Key in ON position.
z Measure the voltage between passenger window regulator
control switch C629 pin 8, circuit 194 (PK), harness side and
ground. Yes
INSTALL a new
passenger window
regulator control switch.
TEST the system for
normal operation.
No Klj . 22 ba
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PINPOINT TEST H: THE DEFROST SYSTEM IS INOPERATIVE G5 CHECK DRIVER WINDOW REGULATOR CONTROL SWITCH
z
Disconnect: Driver Window Regulator Control Switch C537.
z Carry out the driver window regulator control switch component test.
REFER to Wiring Diagrams Cell 149, Component Testing.
z Is the driver window regulator control switch OK? Yes
INSTALL a new
rear window
regulator motor.
REFER to
Motor —
Window Regulator,
Quarter in this
section. TEST the
system for normal
operation.
No
INSTALL a new
driver window
regulator control
switch. REFER to
Switch — Window
Regulator Control in
this section. TEST
the system for
normal operation. Test Step Result / Action to Take
H1 CHECK POWER TO INDICATOR LIGHT
z
Key in ON position.
z Depress the rear window defrost switch to ON.
z Is the rear window defrost switch indicator ON? Yes
GO to
H2 .
No
GO to H3 .
H2 CHECK CIRCUIT 186 (BR/LB) FOR AN OPEN
z
Key in OFF position.
z Disconnect: Heated Rear Window Relay.
z Disconnect: Heated Rear Window Grid Power Supply
Connector C402a.
z Measure the resistance between heated rear window relay,
circuit 186 (BN/LB), harness side and heated rear window
grid C402a, circuit 186 (BN/LB), harness side.
z Is the resistance less than 5 ohms? Yes
GO to
H7 .
No
REPAIR the circuit. TEST
the system for normal
operation. H3 CHECK THE DIAGNOSTIC TROUBLE CODES (DTCS)
z
Refer to the results from the previous instrument cluster
module (ICM) self- test.
z Was DTC B1343 retrieved? Yes
GO to
H4 . Klj . 25 ba
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SPECIFICATIONS
SECTION 501-
12: Instrument Panel and Console 2003 Mustang Workshop Manual Torque Specifications
Description Nm lb-
ft lb-
in Bulkhead wiring harness electrical connector bolt 5 — 44
Floor console screws 2 — 18
Instrument panel support bolts 9 — 80
Instrument panel support nut 48 35 —
Intermediate shaft pinch bolt 47 35 —
Instrument panel reinforcement screws 9 — 80
Instrument panel steering column cover screws 9 — 80 Klj . 1 ba
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13. Remove the LH and RH scuff plates.
14. Remove the LH and RH A-
pillar lower trim panels.
1. Remove the pin- type retainers.
2. Remove the A- pillar lower trim panels.
15. Remove the LH and RH windshield side garnish mouldings. zIf equipped with a convertible top, remove the pin- type retainers.
16. Position the LH and RH door weatherstrips aside.
17. Disconnect the RH main wiring harness electrical connectors. Klj . 3 ba
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18. Disconnect the climate control wiring harness connector.
19. Remove the instrument panel steering column cover.
1. Remove the screws.
2. Remove the instrument panel steering column cover.
20. Remove the instrument panel reinforcement. 1. Remove the screws.
2. Remove the instrument panel reinforcement.
21. Separate the intermediate shaft from the steering column shaft. 1. Remove the pinch bolt. Klj . 4 ba
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2. Separate the intermediate shaft from the steering column shaft.
22. NOTE: The corner of the carpet may have to be pulled back slightly to carry out this step.
Disconnect the LH main wiring harness electrical connectors.
23. Disconnect the generic electronic module (GEM) electrical connectors.
24. Disconnect the electronic crash sensor (ECS) module electrical connector. 1. Release the locking tab.
2. Disconnect the ECS module electrical connector. Klj . 5 ba
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13. Connect the LH main wiring harness electrical connectors.
14. Connect the intermediate shaft to the steering column.
1. Connect the intermediate shaft to the steering column.
2. Install the pinch bolt.
15. Install the instrument panel reinforcement. 1. Position the instrument panel reinforcement.
2. Install the screws.
16. Install the instrument panel steering column cover. 1. Position the instrument panel steering column cover. Klj . 11 ba
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