2003 FORD MUSTANG Door

z
Does GEM PID D_DR_SW indicate AJAR with jumper
wire installed? D9 CHECK CIRCUIT 765 (YE/BK) FOR OPEN BETWEEN GEM
AND DRIVER DOOR AJAR SWITCH z
Disconnect: GEM C201c.
z Measure the resistance between GEM C201c pin 13, circuit
765 (YE/BK), harness side and driver door ajar switch C526
pin 2, circuit 765 (YE/BK), harness side.
z Is the resistance less than 5 ohms? Yes
GO to
D17 .
No
REPAIR the circuit.
REPEAT the self- test.
CLEAR the DTCs. D10 CHECK CIRCUIT 1205 (BK) FOR OPEN BETWEEN
DRIVER DOOR AJAR SWITCH AND GROUND z
Disconnect: Driver Door Ajar Switch C526.
z Measure the resistance between driver door ajar switch
C526 pin 1, circuit 1205 (BK), harness side and ground.
z Is the resistance less than 5 ohms? Yes
INSTALL a new driver door
ajar switch. REFER to
Section 501
- 14A . REPEAT
the self- test. CLEAR the
DTCs.
No
REPAIR the circuit.
REPEAT the self- test.
CLEAR the DTCs. D11 ISOLATE OPEN OR SHORT TO GROUND ON CIRCUIT
761 (GN/RD) z
Enter the following diagnostic mode on the diagnostic tool:
GEM PID.
z Monitor the GEM PID P_DR_SW, while opening and closing
the passenger door.
z Does the GEM PID P_DR_SW value indicate AJAR with
the passenger door closed? Yes
GO to
D12 .
No
GO to D14 .
D12 ISOLATE SHORT TO GROUND ON CIRCUIT 761 (GN/RD) Klj . 13 ba
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z
Disconnect: Passenger Door Ajar Switch C602.
z Enter the following diagnostic mode on the diagnostic tool:
GEM PID.
z Monitor the GEM PID P_DR_SW.
z Does GEM PID P_DR_SW read CLOSED? Yes
INSTALL a new passenger
door ajar switch. REFER to
Section 501
- 14A . REPEAT
the self- test. CLEAR the
DTCs.
No
GO to D13 .
D13 CHECK CIRCUIT 761 (GN/RD) FOR SHORT TO GROUND
BETWEEN GEM AND PASSENGER DOOR AJAR SWITCH z
Disconnect: GEM C201c.
z Measure the resistance between GEM C201c pin 5, circuit
761 (GN/RD), harness side and ground.
z Is the resistance greater than 10,000 ohms? Yes
GO to
D17 .
No
REPAIR the circuit.
REPEAT the self- test.
CLEAR the DTCs. D14 ISOLATE OPEN CIRCUIT 761 (GN/RD)
z
Disconnect: Passenger Door Ajar Switch C602.
z Enter the following diagnostic mode on the diagnostic tool:
GEM PID.
z Connect a 10A fused jumper wire between the passenger
door ajar switch C602 pin 2, circuit 761 (GN/RD), harness
side and ground while monitoring the GEM PID P_DR_SW.
z Does GEM PID P_DR_SW read AJAR with jumper wire
installed? Yes
GO to
D16 .
No
GO to D15 .
D15 CHECK FOR OPEN ON CIRCUIT 761 (GN/RD) BETWEEN
GEM AND PASSENGER DOOR AJAR SWITCH z
Disconnect: GEM C201c.
z Measure the resistance between GEM C201c pin 5, circuit
761 (GN/RD), harness side and passenger door ajar switch
C602 pin 2, circuit 761 (GN/RD), harness side. Yes
GO to
D17 .
No
REPAIR the circuit.
REPEAT the self- test.
CLEAR the DTCs. Klj . 14 ba
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PINPOINT TEST E: THE HEADLAMP ON REMINDER CHIME DOES
NOT OPERATE CORRECTLY z
Is the resistance less than 5 ohms? D16 CHECK CIRCUIT 1205 (BK) FOR OPEN BETWEEN
PASSENGER DOOR AJAR SWITCH AND GROUND z
Measure the resistance between passenger door ajar switch
C602 pin 1, circuit 1205 (BK), harness side and ground.
z Is the resistance less than 5 ohms? Yes
INSTALL a new passenger
door ajar switch. REFER to
Section 501
- 14A . REPEAT
the self- test. CLEAR the
DTCs.
No
REPAIR the circuit.
REPEAT the self- test.
CLEAR the DTCs. D17 CHECK FOR CORRECT MODULE OPERATION
z
Check:
zfor corrosion
z for pushed- out pins
z connector seated correctly
z Connect any disconnected connectors.
z Make sure all other system connectors are fully seated.
z Operate the system and verify the concern is still present.
z Is the concern still present? Yes
INSTALL a new GEM.
REFER to
Section 419 - 10 .
CLEAR the DTCs.
REPEAT the GEM self-
test.
No
The system is operating
correctly at this time.
Concern may have been
caused by a loose or
corroded connector.
CLEAR the DTCs.
REPEAT the self- test. Test Step Result / Action to Take
E1 CHECK FOR CORRECT OPERATION OF THE HEADLAMP
SWITCH z
Cycle the headlamp switch through all positions to verify
correct operation of exterior lighting circuits.
z Do all exterior lamps operate correctly? Yes
GO to
E2 .
No
REFER to Section 417 - 01 . Klj . 15 ba
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E2 CHECK IGNITION STATES
z
Connect the diagnostic tool.
z Enter the following diagnostic mode on the diagnostic tool:
GEM PID.
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
states? Yes
GO to
E3 .
No
Go To Pinpoint Test B .
E3 CHECK GEM INTERNAL TONE OPERATION
z
Enter the following diagnostic mode on the diagnostic tool:
GEM Active Command.
z Trigger the GEM active command CHIME ON and OFF.
z Does the chime operate correctly? Yes
GO to
E4 .
No
GO to E9 .
E4 CHECK GEM INPUT FROM DOOR AJAR CIRCUIT
z
Enter the following diagnostic mode on the diagnostic tool:
GEM PID.
z Monitor the GEM PID D_DR_SW while opening and closing
the driver door.
z Do the GEM PID D_DR_SW values indicate CLOSED
and AJAR correctly? Yes
GO to
E5 .
No
GO to Pinpoint Test D .
E5 MONITOR EXTERIOR LAMP INPUT FOR CORRECT
STATE z
Key in OFF position.
z Enter the following diagnostic mode on the diagnostic tool:
GEM PID.
z Monitor the GEM PID PARK_SW, while triggering the
headlamp switch ON and OFF.
z Do the GEM PID PARK_SW values indicate ON and
OFF correctly? Yes
GO to
E9 .
No
GO to E6 .
E6 CHECK EXTERIOR LAMP INPUT CIRCUIT FOR SHORT
TO POWER — GEM PID PARK_SW z
Key in OFF position.
z Enter the following diagnostic mode on the diagnostic tool:
GEM PID.
z Monitor the GEM PID PARK_SW, while opening and
closing the driver door.
z Does the GEM PID PARK_SW value always indicate
ON? Yes
GO to
E8 .
No
GO to E7 .
E7 CHECK CIRCUIT 14 (BN) FOR OPEN
z
Key in OFF position.
z Disconnect: GEM C201c.
z Disconnect: Headlamp Switch C205.
z Measure the resistance between GEM C201c pin 7, circuit
14 (BN), harness side and headlamp switch C205 pin R,
circuit 14 (BN), harness side. Yes
GO to
E9 .
No
REPAIR the circuit. REPEAT
the self- test. CLEAR the
DTCs. Klj . 16 ba
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GENERAL PROCEDURES
Belt Minder Deactivating/Activating
Preparation
1. Before deactivating/activating the belt minder, set the parking brake.
2. Place the gearshift in P (Park) (automatic transmission) or the neutral position (manual transmission).
3. Place the ignition switch in the OFF position.
4. Close all the vehicle doors.
5. Unbuckle the driver safety belt.
6. Place the parklamps/headlamps switch in the OFF position. (If the vehicle is equipped with Autolamps, this will not affect the procedure.)
Deactivating/Activating 1. Turn the ignition switch to the RUN position. (Do not start the engine.)
2. Wait until the safety belt warning lamp turns off. (approximately one to two minutes)
3. NOTE: Steps 3 through 5 must be completed within 60 seconds or the procedure must be
repeated.
Buckle then unbuckle the safety belt three times, ending with the safety belt unbuckled. This
portion of the procedure can be done before or during belt minder warning activation.
4. Turn the parklamps/headlamps on then off.
5. Buckle then unbuckle the safety belt three times ending with the safety belt unbuckled. After this step the safety belt warning lamp will be illuminated for three seconds.
6. Within seven seconds of the safety belt warning lamp turning off, buckle then unbuckle the safety belt. This will enable the belt minder if disabled or disable the belt minder if enabled.
7. The following sequence of events confirm the belt minder is enabled: zflashing of the safety belt warning belt lamp four times per second for three seconds
z three seconds with the safety belt lamp off
z flashing the safety belt lamp four times per second for three seconds again
8. The safety belt lamp flashing four times per second for three seconds provides confirmation that the belt minder is disabled. 9. After confirmation, the deactivation/activation procedure is complete. SECTION 413-
09: Warning Devices 2003 Mustang Workshop Manual Klj . 1 ba
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REMOVAL AND INSTALLATION
Switch —
Door Ajar
Removal and Installation
For additional information, refer to Section 501 - 14A .
SECTION 413-
09: Warning Devices 2003 Mustang Workshop Manual Klj . 1 ba
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8. If the draw is found to be excessive, pull fuses from the battery/central junction box one at a
time and note the current drop. Do not reinstall the fuses until you are finished testing.
9. Check the wiring schematic in the wiring diagram for any circuits that run from the battery without passing through the battery/central junction box. Disconnect these circuits if the draw is
still excessive.
Battery— Electronic Drains Which Shut Off When the Battery Cable is Disconnected
1. Repeat the steps of the battery drain testing.
2. Make sure all doors are closed and accessories are off. Without starting the engine, turn the ignition switch to RUN for a moment and then OFF. Wait a few minutes for the illuminated entry
lamps to turn off if equipped.
3. Connect the ammeter and read the amperage draw.
The current reading (current drain) should be less than 50 mA (0.05 amp). If the current drain exceeds
50 mA (0.05 amp) after a few minutes, and if this drain did not show in previous tests, the drain is most
likely caused by an inoperative electronic component. As in previous tests, remove the fuses from the
battery/central junction box one at a time to locate the problem circuit.
Generator On- Vehicle Tests
CAUTION: To prevent damage to the generator, do not make jumper wire connections
except as directed.
CAUTION: Do not allow any metal object to come in contact with the housing and the
internal diode cooling fins with key on or off. A short circuit will result and burn out the diodes.
NOTE: Battery posts and cable clamps must be clean and tight for accurate meter indications.
NOTE: Refer to the Battery Tester Procedure Manual for complete directions for testing the charging
system.
1. Turn off all lamps and electrical components.
2. Place the vehicle in transmission range NEUTRAL and apply the parking brake.
3. Carry out the Load Test and No- Load Test according to the following component tests:
Generator On- Vehicle Tests— Load Test
1. Switch the battery tester to the ammeter function.
2. Connect the positive and negative leads of the battery tester to the corresponding battery terminals.
3. Connect the current probe to the generator B+ output terminal, circuit 38 (BK/OG). Klj . 12 ba
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GENERAL PROCEDURES
Battery Disconnect
WARNING: Batteries normally produce explosive gases which can cause personal injury.
Therefore, do not allow flames, sparks or lighted substances to come near the battery, always
shield your face and protect your eyes. Always provide ventilation. Failure to follow these
instructions may result in personal injury.
WARNING: To avoid accidental deployment and possible injury, the backup power supply
must be depleted before repairing or installing any front or side air bag supplemental restraint
system (SRS) components and before repairing, installing, adjusting or striking components
near the front or side air bag sensors, such as doors, instrument panel, console, door latches,
strikers, seats and hood latches. Failure to follow these procedures may result in personal
injury.
Refer to the appropriate vehicle shop manual to determine location of the front air bag sensors.
To deplete the backup power supply energy, disconnect the battery ground cable and wait at
least one minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped).
Failure to follow these instructions may result in personal injury.
WARNING: When lifting a battery, excessive pressure on the end walls could cause acid
to spew through the vent caps, resulting in personal injury. Lift with a battery carrier or with
your hands on opposite corners. Failure to follow these instructions may result in personal
injury.
WARNING: Keep out of the reach of children. Batteries contain sulfuric acid. Avoid
contact with skin, eyes or clothing. Also, shield your eyes when working near the battery to
protect against possible splashing of the acid solution. In case of acid contact with the skin or
eyes, flush immediately with water for a minimum of 15 minutes and get prompt medical
attention. If acid is swallowed, call a physician immediately. Failure to follow these instructions
may result in personal injury.
1. NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms
may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven to
relearn its strategy.
Disconnect the battery ground cable.
2. Disconnect the positive battery cable.
3. To install, reverse the removal procedure.
SECTION 414-
01: Battery, Mounting and Cables 2003 Mustang Workshop Manual Klj . 1 ba
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