mirror FORD MUSTANG 2003 User Guide

Page 3652 of 4378

PINPOINT TEST B: A SINGLE MIRROR IS INOPERATIVE z
Measure the resistance between passenger exterior rear view
mirror C622 pin C, circuit 542 (YE), harness side and exterior
rear view mirror control C527 pin 6, circuit 542 (YE), harness
side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new exterior
rear view mirror control.
REFER to
Switch —
Exterior Rear View
Mirror Control in this
section.
No
REPAIR the circuit.
TEST the system for
normal operation. Test Step Result / Action to
Take B1 CHECK THE COMMON FEED INPUT
z
Disconnect: Exterior Rear View Mirror C516 (Driver) C622
(Passenger).
z Disconnect the inoperative exterior rear view mirror C516 driver
side or C622 passenger side.
z Measure the voltage between driver exterior rear view mirror C516
pin C, circuit 542 (YE), harness side and ground; or between
passenger exterior rear view mirror C622 pin C, circuit 542 (YE),
harness side and ground.
z Select the inoperative side and actuate the exterior rear view
mirror control to the down position, then the right position.
z Are the voltages greater than 10 volts? Yes
GO to
B3 .
No
GO to B2 .
B2 CHECK CIRCUIT 542 (YE) FOR AN OPEN
z
Disconnect: Exterior Rear View Mirror Control C527.
z Measure the resistance between exterior rear view mirror control
C527 pin 6, circuit 542 (YE), harness side and driver exterior rear
view mirror C516 pin C, circuit 542 (YE), harness side; or between
exterior rear view mirror control C527 pin 6, circuit 542 (YE),
harness side and passenger exterior rear view mirror C622 pin C,
circuit 542 (YE), harness side. Yes
INSTALL a new
exterior rear view
mirror control.
REFER to
Switch —
Exterior Rear View
Mirror Control in this
section. TEST the
system for normal
operation. Klj . 3 ba
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Page 3653 of 4378

z
Is the resistance less than 5 ohms? No
REPAIR the circuit.
TEST the system for
normal operation.
B3 CHECK THE UP/DOWN INPUT
z
Measure the voltage between driver exterior rear view mirror C516
pin B, circuit 541(DB), harness side and ground; or between
passenger exterior rear view mirror C622 pin A, circuit 544 (VT),
harness side and ground.
z Actuate the exterior rear view mirror control to the up position.
z Are the voltages greater than 10 volts? Yes
GO to
B6 .
No
GO to B4 for driver
inoperative or GO to
B5 for passenger
inoperative. B4 CHECK CIRCUIT 541 (DB) FOR AN OPEN
z
Disconnect: Exterior Rear View Mirror Control C527.
z Measure the resistance between exterior rear view mirror control
C527 pin 3, circuit 541 (DB), harness side and driver exterior rear
view mirror C516 pin B, circuit 541 (DB), harness side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new
exterior rear view
mirror control.
REFER to
Switch —
Exterior Rear View
Mirror Control in this
section. TEST the
system for normal
operation.
No
REPAIR the circuit.
TEST the system for
normal operation. B5 CHECK CIRCUIT 544 (VT) FOR AN OPEN
z
Disconnect: Exterior Rear View Mirror Control C527.
z Measure the resistance between exterior rear view mirror control
C527 pin 7, circuit 544 (VT), harness side and passenger exterior
rear view mirror C622 pin A, circuit 544 (VT), harness side. Yes
INSTALL a new
exterior rear view
mirror control.
REFER to
Switch —
Exterior Rear View
Mirror Control in this
section. TEST the
system for normal Klj . 4 ba
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Page 3654 of 4378

z
Is the resistance less than 5 ohms? operation.
No
REPAIR the circuit.
TEST the system for
normal operation.
B6 CHECK THE LEFT/RIGHT INPUT
z
Measure the voltage between driver exterior rear view mirror C516
pin A, circuit 540 (RD), harness side and ground; or between
passenger exterior rear view mirror C622 pin B, circuit 543 (DG),
harness side and ground.
z Actuate the exterior rear view mirror control to the left position.
z Is the voltage greater than 10 volts? Yes
INSTALL a new
exterior rear view
mirror motor. REFER
to Mirror
— Motor in
this section. TEST
the system for normal
operation.
No
GO to B7 for driver
inoperative or GO to
B8 for passenger
inoperative. B7 CHECK CIRCUIT 540 (RD) FOR AN OPEN
z
Disconnect: Exterior Rear View Mirror Control C527.
z Measure the resistance between exterior rear view mirror control
C527 pin 4, circuit 540 (RD), harness side and driver exterior rear
view mirror C516 pin A, circuit 540 (RD), harness side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new
exterior rear view
mirror control.
REFER to
Switch —
Exterior Rear View
Mirror Control in this
section. TEST the
system for normal
operation.
No
REPAIR the circuit.
TEST the system for
normal operation. B8 CHECK CIRCUIT 543 (DG) FOR AN OPEN
z
Disconnect: Exterior Rear View Mirror Control C527.
z Measure the resistance between exterior rear view mirror control
C527 pin 8, circuit 543 (DG), harness side and passenger exterior
rear view mirror C622 pin B, circuit 543 (DG), harness side. Yes
INSTALL a new
exterior rear view
mirror control.
REFER to
Switch —
Exterior Rear View
Mirror Control in this
section. TEST the
system for normal Klj . 5 ba
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Page 3655 of 4378

PINPOINT TEST C: A SINGLE MIRROR DOES NOT FUNCTION WITH
SWITCH LOGIC z
Is the resistance less than 5 ohms? operation.
No
REPAIR the circuit.
TEST the system for
normal operation.
Test Step Result / Action to Take
C1 CHECK THE EXTERIOR REAR VIEW MIRROR LOGIC
z
Disconnect: Exterior Rear View MirrorC516 (Driver), or
C622 (Passenger).
z Disconnect the suspect exterior rear view mirror C516
driver or C622 passenger.
z Measure for voltage or resistance at the suspect exterior
rear view mirror harness side, while actuating the
exterior rear view mirror control according to the
following chart. Circuit Exterior rear view
mirror control
position Measure for
voltage or
resistance Driver
540
(RD) Left Greater than 10 volts
540
(RD) Right Less than 5 ohms
541
(DB) Up Greater than 10 volts
541
(DB) Down Less than 5 ohms
542
(YE) Left Less than 5 ohms
542
(YE) Right Greater than 10 volts
542
(YE) Up Less than 5 ohms
542
(YE) Down Greater than 10 volts
Exterior rear view
mirror control Measure for
voltage or Yes
INSTALL a new exterior rear
view mirror motor. REFER to
Mirror
— Motor in this section.
TEST the system for normal
operation.
No
GO to C2 . Klj . 6 ba
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Page 3656 of 4378

z
Is the circuit logic OK? Circuit position resistance
Passenger
543
(DG) Left Greater than 10 volts
543
(DG) Right Less than 5 ohms
544
(VT) Up Greater than 10 volts
544
(VT) Down Less than 5 ohms
542
(YE) Left Less than 5 ohms
542
(YE) Right Greater than 10 volts
542
(YE) Up Less than 5 ohms
542
(YE) Down Greater than 10 volts
C2 CHECK THE EXTERIOR REAR VIEW MIRROR
CONTROL z
Remove the exterior rear view mirror control. Leave the
harness connected.
z Measure for voltage or resistance at exterior rear view
mirror control C527 while actuating the exterior rear view
mirror control according to the following chart. Pin Circuit Exterior rear view
mirror control position Measure for
resistance or voltage 6 542
(YE) Left Less than 5 ohms
6 542
(YE) Right Greater than 10
volts 6 542
(YE) Up Less than 5 ohms
6 542
(YE) Down Greater than 10
volts Driver side selected
4 540
(RD) Left Greater than 10
volts 4 540
(RD) Right Less than 5 ohms
3 541
(DB) Up Greater than 10
volts 3 541
(DB) Down Less than 5 ohms
Passenger side selected
8 543 Left Greater than 10 Yes
REPAIR the circuits. TEST the
system for normal operation.
No
INSTALL a new exterior rear
view mirror control. REFER to
Switch
— Exterior Rear View
Mirror Control in this section.
TEST the system for normal
operation. Klj . 7 ba
82003 Mustang Workshop Manual
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Page 3658 of 4378

REMOVAL AND INSTALLATION
Mirror —Power Exterior Rear View
Removal
1. Remove the door trim panel. For additional information, refer to Section 501 - 05 .
2. Disconnect the power exterior rear view mirror electrical connector.
3. Remove the nuts and the power exterior rear view mirror.
Installation 1. To install, reverse the removal procedure.
SECTION 501-
09: Rear View Mirrors 2003 Mustang Workshop Manual Klj . 1 ba
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Page 3659 of 4378

REMOVAL AND INSTALLATION
Mirror —Motor
Removal
1. Push in the upper edge of the mirror glass to the maximum travel.
2. Grasp the bottom of the mirror glass, pull outward and remove the mirror glass.
3. Remove the mirror motor screws.
4. Disconnect the mirror motor electrical connector.
5. Remove the mirror motor.
Installation 1. NOTE: When installing the mirror glass, make sure it snaps completely into the mirror motor.
SECTION 501-
09: Rear View Mirrors 2003 Mustang Workshop Manual Klj . 1 ba
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Page 3661 of 4378

REMOVAL AND INSTALLATION
Switch —
Exterior Rear View Mirror Control
Removal
1. CAUTION: Use a shop towel or similar material between the tool and the front door
trim panel or damage to the front door trim panel may occur.
Position the window regulator switch plate aside. 1. Pull at service notch.
2. Lift to release the clip at the rear edge.
2. Remove the power exterior rear view mirror control switch. zDisconnect the electrical connector.
Installation 1. To install, reverse the removal procedure.
SECTION 501-
09: Rear View Mirrors 2003 Mustang Workshop Manual Klj . 1 ba
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Page 3779 of 4378

REMOVAL AND INSTALLATION
Windshield Glass
Removal
All vehicles
WARNING: To prevent glass splinters from entering eyes or cutting hands, wear safety
glasses and heavy gloves when cutting glass from the vehicle.
1. Remove the RH and LH windshield side garnish mouldings. zIf equipped with a convertible top, remove the pin- type retainers.
2. Remove the interior rear view mirror.
Convertible
3. Remove the visor trim moulding.
SECTION 501-
11: Glass, Frames and Mechanisms 2003 Mustang Workshop Manual Special Tool(s)
Rotunda Pneumatic Knife with
Offset Blade
107-
R1511 or equivalent The Pumper
164-
R2459 or equivalent Rotunda Interior Auto Glass
Cut-
Out Knife Kit
164- R2450 or equivalent Klj . 1 ba
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Page 3787 of 4378

z
Connect the electrical connector(s).
22. Install the visor trim moulding.
All vehicles 23. Install the RH and LH windshield side garnish moulding. zIf equipped with a convertible top, install the pin- type retainers.
24. Install the interior rear view mirror. Klj . 9 ba
102003 Mustang Workshop Manual
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