2003 FORD MUSTANG battery

No
GO to
B10 .
B4 TEST THE GEM CONTROL OF WIPER HIGH/LOW RELAY
z
Trigger the GEM active command WIPER RLY to ON.
z Trigger the GEM active command SPEED RLY ON and
OFF.
z Does wiper speed change on activation and
deactivation of SPEED RLY command? Yes
GO to
B5 .
No
GO to B16 .
B5 DETERMINE IF GEM IS RECEIVING CORRECT WIPER
POSITION STATUS z
Monitor GEM PID WPPRKSW while turning the wipers ON
using the multifunction switch.
z Do the PID values agree with the wiper position? Yes
INSTALL a new GEM. For
additional information,
REFER to
Section 419 - 10 .
CLEAR the DTCs. REPEAT
the self- test.
No
GO to B27 .
B6 TEST THE MULTIFUNCTION SWITCH FOR NORMAL
OPERATION z
Disconnect: Multifunction Switch C202a.
z Check the multifunction switch. Refer to Wiring Diagrams,
Cell 149, Component Testing.
z Is the multifunction switch OK? Yes
GO to
B7 .
No
INSTALL a new multifunction
switch; REFER to Section 211 - 05 . REPEAT the self-
test. CLEAR the DTCs. B7 CHECK CIRCUITS 682 (DB), 684 (PK/YE), AND 680
(LB/OG) FOR SHORT TO BATTERY BETWEEN THE GEM
AND THE MULTIFUNCTION SWITCH z
Disconnect: GEM C201e.
z Key in ON position.
z Using the following table, measure the voltage between
the GEM C201e Pins, harness side and ground.
z Are the voltages greater than 10 volts? Pin Circuit
5 682 (DB)
18 684 (PK/YE)
19 680 (LB/OG) Yes
REPAIR the circuit(s) in
question. REPEAT the self-
test. CLEAR the DTCs.
No
GO to
B8 .
B8 CHECK CIRCUITS 682 (DB), 684 (PK/YE), AND 680 Klj . 8 ba
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relay Pin 5, Circuit 65 (DG), harness side and ground; and
between BJB wiper ON/OFF relay Pin 2, Circuit 65 (DG),
harness side and ground.
z Are the voltages greater than 10 volts? REPAIR circuit(s) in question.
REPEAT the self-
test.
CLEAR the DTCs. B11 ISOLATE PROBLEM BETWEEN GEM AND BJB
z
Key in OFF position.
z Connect a fused jumper wire (30A) between wiper
ON/OFF relay Pin 3 and Pin 5, harness side.
z Key in ON position.
z Did the wiper motor activate? Yes
GO to
B12 .
No
GO to B22 .
B12 CARRY OUT THE WIPER ON/OFF RELAY COMPONENT
TEST z
Check the wiper ON and OFF relay; refer to Wiring
Diagrams, Cell 149, Component Testing.
z Is the ON/OFF wiper relay OK? Yes
GO to
B13 .
No
INSTALL a new wiper
ON/OFF relay. REPEAT the
self- test. CLEAR the DTCs. B13 CHECK CIRCUIT 646 (YE/WH) FOR SHORT TO
BATTERY BETWEEN GEM AND BJB z
Disconnect: Wiper On/Off Relay.
z Disconnect: GEM C201d.
z Measure the voltage between GEM C201d 3 Pin 12,
Circuit 646 (YE/WH), harness side and ground. Yes
REPAIR Circuit 646
(YE/WH). REPEAT the self-
test. CLEAR the DTCs.
No
GO to
B14 . Klj . 10 ba
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z
Connect a fused jumper wire (30A) between wiper
HIGH/LOW relay Pin 30, Circuit 61 (YE/RD), harness side
and Pin 87, Circuit 58 (WH), harness side.
z Did the wiper motor speed increase with the jumper
installed and slow down with the jumper removed? GO to
B18 .
No
GO to B26 .
B18 CARRY OUT COMPONENT TEST ON WIPER HIGH/LOW
RELAY z
Check the wiper HIGH/LOW relay; refer to Wiring
Diagrams, Cell 149, Component Testing.
z Is the wiper HIGH/LOW relay OK? Yes
GO to
B19 .
No
INSTALL a new wiper
HIGH/LOW relay. REPEAT
the self- test. CLEAR the
DTCs. B19 CHECK CIRCUIT 647 (GY/LB) FOR SHORT TO
BATTERY BETWEEN GEM AND BJB z
Disconnect: GEM C201d.
z Measure voltage between GEM C201d Pin 5, Circuit 647
(GY/LB), harness side and ground.
z Is the voltage greater than 10 volts? Yes
REPAIR Circuit 647 (GY/LB).
REPEAT the self-
test.
CLEAR the DTCs.
No
GO to B20 .
B20 CHECK CIRCUIT 647 (GY/LB) FOR SHORT TO GROUND
BETWEEN GEM AND BJB z
Measure the resistance between GEM C201d Pin 5,
Circuit 647 (GY/LB), harness side and ground. Yes
GO to
B21 .
No
REPAIR Circuit 647 (GY/LB).
REPEAT the self- test.
CLEAR the DTCs. Klj . 12 ba
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test.
z Disconnect: Washer ON/OFF Relay.
z Measure the voltage between washer ON/OFF relay Pin 2, Circuit
65 (DG), harness side and ground; and washer ON/OFF relay Pin
3, Circuit 65 (DG), harness side and ground.
z Are the voltages greater than 10 volts? GO to
C5 .
No
REPAIR the circuit in
question. REPEAT
the self- test. CLEAR
the DTCs. C5 ISOLATE THE PROBLEM BETWEEN GEM AND BJB
z
Connect a fused jumper wire (30A) between washer ON/OFF
relay Pin 3, Circuit 65 (DG), harness side and Pin 5, Circuit 941
(BK/WH), harness side.
z Did the washer motor activate? Yes
GO to
C6 .
No
GO to C10 .
C6 CARRY OUT WASHER ON/OFF RELAY COMPONENT TEST
z
Check the washer ON/OFF relay; refer to Wiring Diagrams, Cell
149, Component Testing.
z Is the washer ON/OFF relay OK? Yes
GO to
C7 .
No
INSTALL a new wiper
ON/OFF relay.
REPEAT the self- test.
CLEAR the DTCs. C7 CHECK CIRCUIT 686 (TN/RD) FOR SHORT TO BATTERY
BETWEEN GEM AND BJB z
Disconnect: GEM C201d.
z Measure the voltage between GEM C201d Pin 6, Circuit 686
(TN/RD), harness side and ground. Yes
REPAIR Circuit 686
(TN/RD). REPEAT the
self-
test. CLEAR the
DTCs.
No
GO to C8 . Klj . 16 ba
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z
Is the voltage greater than 10 volts? C8 CHECK CIRCUIT 686 (TN/RD) FOR SHORT TO GROUND
BETWEEN GEM AND BJB z
Measure the resistance between GEM C201d Pin 6, Circuit 686
(TN/RD), harness side and ground.
z Is the resistance greater than 10,000 ohms? Yes
GO to
C9 .
No
REPAIR Circuit 686
(TN/RD). REPEAT the
self- test. CLEAR the
DTCs. C9 CHECK CIRCUIT 686 (TN/RD) FOR AN OPEN CIRCUIT
BETWEEN GEM AND WASHER ON/OFF RELAY z
Measure the resistance between GEM C201d Pin 6, Circuit 686
(TN/RD), harness side and washer ON/OFF relay Pin 1, Circuit
686 (TN/RD), harness side.
z Is the resistance less than 5 ohms? Yes
INSTALL a new GEM;
REFER to
Section 419 - 10 . REPEAT the
self- test. CLEAR the
DTCs.
No
REPAIR Circuit 686
(TN/RD). REPEAT the
self- test. CLEAR the
DTCs. C10 CHECK CIRCUIT 941 (BK/WH) FOR SHORT TO BATTERY
BETWEEN BJB AND WASHER MOTOR z
Disconnect: Washer Pump Motor C137.
z Measure the voltage between washer pump C137 Pin 1, Circuit
941 (BK/WH), harness side and ground.
z Is the voltage greater than 10 volts? Yes
REPAIR Circuit 941
(BK/WH). REPEAT
the self-
test. CLEAR
the DTCs.
No
GO to C11 .
C11 CHECK CIRCUIT 941 (BK/WH)FOR OPEN BETWEEN THE BJB
AND THE WASHER MOTOR z
Measure the resistance between washer pump C137 Pin 1, Circuit
941 (BK/WH), harness side and washer pump relay Pin 5, Circuit
941 (BK/WH), harness side. Yes
GO to
C12 .
No Klj . 17 ba
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Component Test
Windshield Wiper Motor
CAUTION: Do not handle the wiper motor abusively when diagnosing the wiper
operations. Failure to follow this caution may result in damage to the motor magnets and will
make the wiper motor inoperative. Rough handling of new replacement wiper motors may also
damage the motor magnets.
Use Alternator, Regulator, Battery and Starter Tester (ARBST) to test the wiper motor on the vehicle. z
Is the resistance less than 5 ohms? REPAIR Circuit 941
(BK/WH). REPEAT
the self-
test. CLEAR
the DTCs. C12 CHECK CIRCUIT 1205 (BK) FOR AN OPEN
z
Measure the resistance between washer pump C137 Pin 2, Circuit
1205 (BK), harness side and ground.
z Is the resistance less than 5 ohms? Yes
INSTALL a new
washer motor.
REPEAT the self-
test.
CLEAR the DTCs.
No
REPAIR Circuit 1205
(BK). REPEAT the
self- test. CLEAR the
DTCs. Klj . 18 ba
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To test the wiper motor, disconnect the windshield wiper mounting arm and pivot shaft from the
windshield wiper motor; refer to
Pivot Arm .
Disconnect the wiper motor. Connect the (1) green lead from (2) (ARBST) to the battery negative (- )
post. Connect the (3) red lead from ARBST to the wiper motor (4) common brush terminal (terminal 3).
Test the low speed mode by connecting a (5) cable from the battery positive (+) post to the (6) low
speed brush terminal (terminal 4) and measure the current draw. If the current draw is greater than 3.5
amperes, install a new windshield wiper motor.
Test the high speed mode by connecting a cable from the battery positive (+) post to the (7) high
speed brush terminal (terminal 5) and measure the current draw. If the current draw is greater than 5.5
amperes, install a new wiper motor. Klj . 19 ba
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REMOVAL AND INSTALLATION
Mounting Arm and Pivot Shaft
Removal
1. Park the windshield wipers in the full upright position. This will allow for easy access to the retaining clip on the wiper motor output shaft.
2. Remove the cowl top vent panels.
3. Disconnect the battery ground cable.
4. Disconnect the mounting arm and pivot shaft linkage from the wiper motor output shaft. 1. Remove the clip.
2. Disconnect the mounting arm and pivot shaft linkage from the wiper motor output shaft.
5. NOTE: It is necessary to lower the hood to remove the mounting arm and pivot shaft.
Remove the mounting arm and pivot shaft. 1. Remove the bolts.
2. Remove the mounting arm and pivot shaft through the RH cowl chamber opening.
SECTION 501-
16: Wipers and Washers 2003 Mustang Workshop Manual Klj . 1 ba
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