Pinpoint tests (cars after 08.2001) (Focus 1)

NOTE: Use a digital multimeter to make all electrical measurements.

PINPOINT TEST P: LEFT OR RIGHT POWER WINDOW DOES NOT WORK - FRONT AND REAR POWER WINDOWS

STATES	DETAILS/RESULTS/ACTIONS
P1: CHECK IGNITION VOLTAGE SUPPLIED TO THE INOPERATIVE WINDOW REGULATOR SWITCH
NOTE:Make sure the rear window switch lock is not engaged.
	1Enter the ON position.
	• Is the LED for the inoperative window switch on?
	→ Yes
	Go to P2
	→ No
	Go to P6
P2: CHECK THE OPERATION OF THE INOPERATIVE POWER WINDOW BY PRESSING THE DRIVER'S DOOR POWER WINDOW SWITCH
	1Press the driver's door window switch.
	• Does the non-working window operate properly?
	→ Yes
	Driver's Door Window Regulator. CHECK the validity of the customer complaint. All passenger window regulators, Go to P3
	→ No
	Go to P8
P3: CHECK FOR OPEN BETWEEN INOPERATIVE WINDOW REGULATOR SWITCH AND WINDOW REGULATOR MOTOR UP CIRCUIT
	1Disconnect the inoperative window motor - C735 or C736.
	2Disconnect the Inoperative Window Switch - C482 or C485.
	3Measure the resistance between: • pin 5 C485 front passenger door power window switch, circuit 31S-AJ55B (black/orange), wiring harness side, and pin 3 C735 power window motor, circuit 31S-AJ55A (black/orange), wiring harness side. • pin 5 C482 of the left rear passenger door power window switch, circuit 31S-AJ46B (black/white), wiring harness side, and pin 3 C736 of the power window motor, circuit 31S-AJ46A (black/white), wiring harness side. • pin 5 C482 of the right rear passenger door power window switch, circuit 31S-AJ46B (black/white), wiring harness side, and pin 3 C736 of the power window motor, circuit 31S-AJ46A (black/white), wiring harness side.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to P4
	→ No
	REPAIR circuit 31S-AJ55B (black/orange) or circuit 31S-AJ46B (black/white). CHECK the system for proper operation.
P4: CHECK FOR OPEN BETWEEN INOPERATIVE WINDOW REGULATOR SWITCH AND WINDOW REGULATOR MOTOR DOWN CIRCUIT
	1Measure the resistance between: • pin 2 C485 front passenger door power window switch, circuit 31S-AJ54B (black/blue), wiring harness side, and pin 4 C735 power window motor, circuit 31S-AJ54A (black/blue), wiring harness side. • pin 2 C482 of the left rear passenger door power window switch, circuit 31S-AJ63B (black/blue), wiring harness side, and pin 4 C736 of the power window motor, circuit 31S-AJ63A (black/blue), wiring harness side. • pin 2 C483 of the right rear passenger door power window switch, circuit 31S-AJ63B (black/blue), wiring harness side, and pin 4 C736 of the power window motor, circuit 31S-AJ63A (black/blue), wiring harness side.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to P5
	→ No
	REPAIR circuit 31S-AJ54B (black/blue) or circuit 31S-AJ63B (black/blue). CHECK for proper system operation.
P5: CHECK THE GROUND CIRCUIT OF THE INOPERATIVE WINDOW MOTOR
	1Measure the resistance between: • pin 8 C735 of the front passenger window lift motor, electrical circuit 31-AJ27 (black), on the wiring harness side, and ground. • pin 8 C736 of the left rear passenger window motor, electrical circuit 31-AJ31 (black), on the wiring harness side, and ground. • pin 8 C736 of the right rear passenger window lift motor, electrical circuit 31-AJ31 (black), on the wiring harness side, and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	CHECK the validity of the customer's complaint.
	→ No
	REPAIR circuit 31-AJ27 (black) or circuit 31-AJ31 (black). CHECK for proper system operation.
P6: CHECK VOLTAGE SUPPLIED TO THE INOPERATIVE WINDOW REGULATOR SWITCH
	1Enter the OFF position.
	2Disconnect the Inoperative Power Window Switch - C482, C484 or C485.
	3Enter the ON position.
	NOTE:Shown is the passenger window power switch. 4Measure the voltage between: • pin 13 C484 driver's window lift switch, circuit 15-LH14 (green/yellow), wiring harness side, and ground. • pin 1 C485 front passenger door power window switch, circuit 15-LH31 (green/blue), harness side, and ground. • pin 1 C482 left rear passenger door window switch, circuit 15-LH36 (green/red), wiring harness side, and ground. • pin 1 C482 right rear passenger door window switch, circuit 15-LH36 (green/red), harness side and ground.
	• Is the voltage more than 10V?
	→ Yes
	Go to P7
	→ No
	Go to P14
P7: CHECK INOPERATIVE WINDOW REGULATOR SWITCH GROUND CIRCUIT
	1Enter the OFF position.
	NOTE:The driver's window power switch is shown. 2Measure the resistance between: • pin 4 C484 of the driver's window lift switch, electrical circuit 31-AJ7 (black), on the wiring harness side, and "ground". • pin 6 C485 of the front passenger door power window switch, electrical circuit 31-AJ18 (black), on the wiring harness side, and ground. • pin 6 C482 of the left rear passenger door window switch, circuit 31S-AJ32 (black/orange), wiring harness side, and ground. • pin 6 C482 of the right rear passenger door window switch, circuit 31S-AJ32 (black/orange), wiring harness side, and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	REPAIR chain 32-AJ26 (white).
	→ No
	REPAIR electrical circuit 31-AJ7 (black); or electrical circuit 31-AJ18 (black) or electrical circuit 31S-AJ32 (black/orange). Check the switching voltage to the one-touch open/close relay"
P8: CHECK VOLTAGE SUPPLIED TO THE CONNECTOR OF THE DOOR WITH THE INOPERATIVE WINDOW
	1Enter the OFF position.
	2Disconnect the Inoperative Window Door Connector - C42, C44, C45 or C46.
	3Enter the ON position.
	NOTE:Shown is the front door connector with window lift. 4Measure the voltage between: • pin 9 C42 left front door window regulator, electrical circuit 29-AJ26 (orange/yellow), wiring harness side, and ground. • pin 9 C44 right front door window regulator, electrical circuit 29-AJ27 (orange/white), wiring harness side, and ground. • pin 9 C45 left rear passenger door window regulator, electrical circuit 29-AJ13 (orange/blue), wiring harness side, and ground. • pin 9 C46 right rear passenger door window regulator, electrical circuit 29-AJ23 (orange/white), wiring harness side, and ground.
	• Check the ignition voltage supplied to the one-touch opening relay"
	→ Yes
	Go to P9
	→ No
	REPAIR electrical circuit 29-AJ26 (orange/yellow); or electrical circuit 29-AJ27 (orange/white); or circuit 29-AJ13 (orange/blue) or circuit 29-AJ23 (orange/white). Perform the driver's window switch component test.
P9: CHECK THE GROUND CIRCUIT OF THE INOPERATIVE WINDOW REGULATOR MOTOR
	1Enter the OFF position.
	2Disconnect the inoperative window motor - C734, C735 or C736.
	3Measure the resistance between: • pin 8 C734 of the driver's door window lift motor, electrical circuit 31-AJ26 (black), on the wiring harness side, and ground. • pin 8 C735 of the front passenger window lift motor, electrical circuit 31-AJ27 (black), on the wiring harness side, and ground. • pin 8 C736 of the left rear passenger window lift motor, electrical circuit 31-AJ31 (black), on the wiring harness side, and ground. • pin 8 C736 of the right rear passenger window lift motor, electrical circuit 31-AJ31 (black), on the wiring harness side, and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to P10
	→ No
	REPAIR electrical circuit 31-AJ26 (black); or electrical circuit 31-AJ27 (black); or electrical circuit 31-AJ31 (black). CHECK that the system is working properly.
P10: CHECK VOLTAGE SUPPLIED TO THE INOPERATIVE WINDOW MOTOR CONNECTOR
	1Connect the connector of the door with the inoperative window - C42, C44, C45 OR C46.
	2Enter the ON position.
	3Measure the voltage between: • pin 7 C734 driver's door window lift motor, electrical circuit 29-AJ26 (orange/yellow), wiring harness side, and ground. • pin 7 C735 front passenger window lift motor, circuit 29-AJ27 (orange/white), wiring harness side, and ground. • pin 7 C736 left rear passenger window motor, circuit 29-AJ31 (orange/blue), wiring harness side, and ground. • pin 7 C736 right rear passenger window motor, circuit 29-AJ31 (orange/blue), wiring harness side, and ground.
	• Is the voltage more than 10V?
	→ Yes
	Go to P11
	→ No
	REPAIR electrical circuit 29-AJ26 (orange/yellow); or circuit 29-AJ27 (orange/white) or circuit 29-AJ31 (orange/blue). CHECK that the system is operating correctly.
P11: CHECK FOR OPEN CHAIN IN THE RAISING CIRCUIT OF THE INOPERATIVE WINDOW REGULATOR MOTOR
	1Enter the OFF position.
	2Press the inoperative window motor switch to the UP position.
	3Measure the resistance between: • pin 3 C734 driver's door window lift motor, electrical circuit 31S-AJ41 (black/orange), wiring harness side, and ground. • pin 3 C735 front passenger window lift motor, circuit 31S-AJ55A (black/orange), wiring harness side, and ground. • pin 3 C736 left rear passenger window motor, electrical circuit 31S-AJ46A (black/white), wiring harness side, and ground. • pin 3 C736 right rear passenger window motor, electrical circuit 31S-AJ46A (black/white), wiring harness side, and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to P12
	→ No
	REPAIR electrical circuit 31S-AJ41 (black/orange); or electrical circuit 31S-AJ55A (black/orange) or electrical circuit 31S-AJ46A (black/white). CHECK that the system is operating correctly.
P12: CHECK FOR OPEN IN THE DOWN CIRCUIT OF THE INOPERATIVE WINDOW REGULATOR MOTOR
	1Press the inoperative window motor switch to the DOWN position.
	2Measure the resistance between: • pin 4 C734 of the driver's door window lift motor, electrical circuit 31S-AJ40 (black/blue), on the wiring harness side, and ground. • pin 4 C735 front passenger window lift motor, electrical circuit 31S-AJ54A (black/blue), wiring harness side, and ground. • pin 4 C736 left rear passenger window motor, circuit 31S-AJ63A (black/blue), wiring harness side, and ground. • pin 4 C736 right rear passenger window motor, electrical circuit 31S-AJ63A (black/blue), wiring harness side, and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to P13
	→ No
	REPAIR Electrical Circuit 31S-AJ40 (Black/Blue); or electrical circuit 31S-AJ54A (black/blue) or electrical circuit 31S-AJ63A (black/blue). CHECK that the system is operating correctly.
P13: CHECK THE VOLTAGE SUPPLIED TO THE INOPERATIVE WINDOW MOTOR
	1Enter the ON position.
	2Measure the voltage between: • pin 2 C734 driver's door window lift motor, circuit 15-AJ26A (green/yellow), wiring harness side, and ground. • pin 2 C735 front passenger window lift motor, circuit 15S-AJ27A (green/white), wiring harness side, and ground. • pin 2 C736 left rear passenger window motor, circuit 15S-AJ31A (green/blue), wiring harness side, and ground. • pin 2 C736 right rear passenger window motor, circuit 15S-AJ31A (green/blue), wiring harness side, and ground.
	• Is the voltage more than 10V?
	→ Yes
	INSTALL a new electric motor. CHECK the system for proper operation.
	→ No
	REPAIR electrical circuit 15-AJ26A (green/yellow); or electrical circuit 15S-AJ27A (green/white) or electrical circuit 15S-AJ31A (green/blue). CHECK that the system is operating correctly.
P14: CHECK VOLTAGE SUPPLIED TO THE INOPERATIVE WINDOW DOOR CONNECTOR
	1Disconnect the Inoperative Window Door Connector - C42, C44, C45 or C46.
	NOTE:The B-pillar connector is shown. 2Measure the voltage between: • pin 15 C42 left front door window regulator, circuit 15-AJ26 (green/yellow) left side (circuit 15-AJ27 [green/white] right side), A-pillar side, and ground. • pin 15 C44 right front door window regulator, electrical circuit 15-AJ27 (green/white) left side (electrical circuit 15-AJ26 [green/yellow] right side), from the A-pillar side, and ground. • pin 13 C45 left rear passenger door window regulator, electrical circuit 15-AJ13 (green/blue), B-pillar side, and ground. • pin 13 C46 right rear passenger door window regulator, electrical circuit 15-AJ13 (green/blue), B-pillar side, and ground.
	• Is the voltage more than 10V?
	→ Yes
	REPAIR electrical circuit 15-AJ26 (green/yellow) door side; or electrical circuit 15-AJ27 (green/white) on the door side or electrical circuit 15-AJ31 (green/blue) on the door side. CHECK that the system is operating correctly.
	→ No
	REPAIR 15-AJ26 (Green/Yellow) A-Pillar Side Electrical Circuit; or circuit 15-AJ27 (green/white) on the A-pillar side, or circuit 15-AJ13 (green/blue) on the B-pillar side. CHECK that the system is operating correctly.

PINPOINT TEST Q: GENERAL LOCK FUNCTION DOES NOT WORK

STATES	DETAILS/RESULTS/ACTIONS
Q1: CHECK THE VOLTAGE SUPPLIED TO THE MOTOR OF THE INOPERATING DOOR WINDOW REGULATOR
	1Disconnect the inoperative window motor - C734, C735, C736 or C737.
	2Measure the voltage between: • pin 6 C734 driver's door window lift motor, electrical circuit 8-AJ42 (white/green), wiring harness side, and ground. • pin 6 C735 front passenger window lift motor, circuit 8-AJ56 (white/green), wiring harness side, and ground. • pin 6 C737 left rear passenger window motor, circuit 8-AJ65 (white/green), wiring harness side, and ground. • pin 6 C736 of the right rear passenger window motor, electrical circuit 8-AJ65 (white/green), on the wiring harness side, and ground.
	• Is the voltage more than 10V?
	→ Yes
	INSTALL a new window motor For additional information, refer to Door Window Motor in this section. CHECK that the system is operating correctly.
	→ No
	REPAIR electrical circuit 8-AJ42 (white/green); or 8-AJ56 (white/green) or 8-AJ65 (white/green). CHECK that the system is working properly.

PINPOINT TEST R: ALL POWER WINDOWS DO NOT WORK - FRONT POWER WINDOWS

STATES	DETAILS/RESULTS/ACTIONS
R1: CHECK VOLTAGE AT WINDOW SWITCHES
	1Enter the ON position.
	• Do the power window switch LEDs light up?
	→ Yes
	CHECK the validity of the customer's complaint.
	→ No
	Go to R2
R2: CHECK FOR OPEN CIRCUIT BETWEEN DRIVER DOOR WINDOW SWITCH AND GROUND"
	1Enter the OFF position.
	2Disconnect Driver's Door Power Window Switch - C488.
	3Measure the resistance between driver's door window lift switch pin 1 C488, circuit 31-AJ7 (Black), harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to R3
	→ No
	REPAIR electrical circuit 31-AJ7 (black). Check for proper system operation.
R3: CHECK VOLTAGE SUPPLIED TO DRIVER'S DOOR WINDOW REGULATOR SWITCH
	1Enter the ON position.
	2Measure the voltage between driver's door window lift switch pin 10 C488, circuit 15-AJ7 (GN/BL), harness side and ground.
	• Is the voltage more than 10V?
	→ Yes
	Check the validity of the customer's complaint.
	→ No
	REPAIR circuit 15-AJ7 (Green/Brown). Check for proper system operation.

PINPOINT TEST S: THE WINDOW REGULATOR OF THE LEFT OR RIGHT WINDOW DOES NOT WORK - FROM THE DRIVER SIDE

STATES	DETAILS/RESULTS/ACTIONS
S1: CHECK IGNITION VOLTAGE AT DRIVER DOOR WINDOW REGULATOR SWITCH
	1Enter the ON position.
	• Is the driver's door window power switch LED on?
	→ Yes
	Go to S2
	→ No
	Go to S4
S2: CHECK FOR OPEN CIRCUIT BETWEEN DRIVER WINDOW MOTOR AND GROUND"
	1Enter the OFF position.
	2Disconnect Driver's Door Window Motor - C782.
	3Measure the resistance between driver's power window motor C782 pin 1, circuit 33-AJ26 (Yellow), harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to S3
	→ No
	CHECK the system for proper operation. Check for open circuit between the one-touch open/close relay and the driver's window switch
S3: CHECK VOLTAGE SUPPLIED TO DRIVER'S DOOR WINDOW MOTOR
	1Enter the ON position.
	2Press the driver's door window switch to the CLOSE position.
	3Measure the voltage between driver's door window lift motor C782 pin 2, circuit 32-AJ26 (White), harness side and ground.
	• REPAIR chain 32-AJ17 (white/purple).
	→ Yes
	Install a new driver's window motor. For more information, refer to the Door Window Motor in this section.. Check the voltage in the passenger window motor close circuit
	→ No
	CHECK the system is working properly. Check the system is working properly.
S4: CHECK CIRCUIT BETWEEN DRIVER DOOR WINDOW SWITCH AND GROUND FOR OPEN
	1Enter the OFF position.
	2Disconnect Driver's Door Power Window Switch - C488.
	3Measure the resistance between driver's door window lift switch pin 1 C488, circuit 31-AJ7 (Black), harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to S5
	→ No
	REPAIR electrical circuit 31-AJ7 (black). Check for proper system operation.
S5: CHECK VOLTAGE SUPPLIED TO DRIVER'S DOOR WINDOW REGULATOR SWITCH
	1Enter the ON position.
	2Measure the voltage between driver's door window lift switch pin 10 C488, circuit 15-AJ7 (GN/BL), harness side and ground.
	• Is the voltage more than 10V?
	→ Yes
	CHECK the validity of the customer's complaint.
	→ No
	REPAIR circuit 15-AJ7 (Green/Brown). CHECK system for proper operation.

PINPOINT TEST T: LEFT OR RIGHT WINDOW WINDOW DOES NOT WORK - PASSENGER SIDE

STATES	DETAILS/RESULTS/ACTIONS
T1: CHECK VOLTAGE AT PASSENGER DOOR WINDOW REGULATOR SWITCH
	1Enter the ON position.
	• Is the passenger door window power switch LED on?
	→ Yes
	Go to T2
	→ No
	Go to T5
T2: CHECK PASSENGER DOOR WINDOW REGULATOR SWITCH GROUND CIRCUIT
	1Enter the OFF position.
	2Disconnect the Passenger Door Window Switch - C489.
	3Measure the resistance between passenger power window switch C489 pin 3, circuit 32-AJ18 (WH/PUP), harness side and ground; and between pin 6 C489 of the passenger door window lift switch, circuit 33-AJ18 (yellow/purple), wiring harness side, and ground.
	• Is the resistance less than 5 ohms in all cases?
	→ Yes
	Go to T3
	→ No
	Repair circuit 32-AJ18 (white/purple) or circuit 33-AJ18 (yellow/purple). CHECK the system for proper operation.
T3: CHECK FOR OPEN CIRCUIT BETWEEN PASSENGER DOOR WINDOW SWITCH AND MOTOR
	1Disconnect the Passenger Door Window Motor - C783.
	2Measure the resistance between passenger power window switch C489 pin 1, circuit 33-AJ17 (YE/PUP), harness side and passenger power window motor C783 pin 1, circuit 33-AJ17 (YE/PUP), harness side.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to T4
	→ No
	CHECK the system is working correctly. The one-touch opening function does not work
T4: CHECK FOR OPEN CIRCUIT BETWEEN PASSENGER DOOR WINDOW SWITCH AND MOTOR
	1Measure the resistance between passenger power window switch C489 pin 7, circuit 32-AJ17 (WH/PUP), harness side and passenger power window motor C783 pin 2, circuit 32-AJ17 (WH/PUP), harness side.
	• CHECK the validity of the customer's complaint.
	→ Yes
	INSTALL a new window motor For additional information, refer to Door Window Motor in this section. CHECK that the system is operating correctly.
	→ No
	CHECK the system for proper operation. REPAIR chain 33-AJ17 (yellow/purple).
T5: CHECK PASSENGER DOOR WINDOW REGULATOR SWITCH GROUND CIRCUIT
	1Enter the OFF position.
	2Disconnect the Passenger Door Window Switch - C489.
	3Measure the resistance between passenger power window switch C489 pin 4, circuit 31-LH31 (Black), harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to T6
	→ No
	REPAIR chain 31-LH31 (black). CHECK the correct operation of the system.
T6: CHECK VOLTAGE AT PASSENGER DOOR WINDOW REGULATOR SWITCH
	1Enter the ON position.
	2Measure the voltage between passenger power window switch C489 pin 2, circuit 15-AJ18 (GN/WH), harness side and ground.
	• Is the voltage more than 10V?
	→ Yes
	CHECK the validity of the customer's complaint.
	→ No
	REPAIR circuit 15-AJ18 (Green/White). CHECK system for proper operation.

PINPOINT TEST U: DE-ICING SYSTEM NOT WORKING.

STATES	DETAILS/RESULTS/ACTIONS
U1: CHECK REAR WINDOW HEATING CIRCUIT OPERATION
	1Enter the ON position.
	2Press the rear window defroster switch.
	• Is the rear window defroster electrical circuit functioning properly?
	→ Yes
	Go to U2
	→ No
	Go to U3
U2: CHECK WINDSHIELD HEATING CIRCUIT OPERATION
	1Enter the START position.
	2Enter the ON position.
	3With the engine running, press the windshield defroster switch.
	• Is the windshield heating circuit functioning properly?
	→ Yes
	CHECK the validity of the customer's complaint.
	→ No
	Go to U6
U3: CHECK THE OPERATION OF THE HEATED OUTSIDE MIRRORS
	1Press the rear window defroster switch.
	• Are the heated outside mirrors functioning properly?
	→ Yes
	Go to U4
	→ No
	Go to U10
U4: CHECK REAR WINDOW DEHEATER CIRCUIT VOLTAGE
	1Enter the OFF position.
	2Disconnect Rear Window Defogger - C949 or C950.
	3Enter the ON position.
	4Measure the voltage between: • 3-door, 5-door and wagon - pin 1 C949 heated rear window, electrical circuit 15S-HB19 (green/blue), wiring harness side, and ground. • 4-door version - pin 1 C950 heated rear window, electrical circuit 15S-HB19 (green/blue), on the wiring harness side, and ground.
	• Is the voltage more than 10V?
	→ Yes
	Go to U5
	→ No
	REPAIR chain 15S-HB19 (green/blue). CHECK system operation for proper operation.
U5: CHECK HEATED REAR GLASS GROUND CIRCUIT
	1Enter the OFF position.
	2Disconnect Rear Window Defogger - C951.
	3Measure the resistance between: • 3-door version, 5-door version and "station wagon" - electrical grounding circuit for rear window with heating and "mass". • 4-door version - pin 1 C951 heated rear window, electrical circuit 31-HB19 (black), on the wiring harness side, and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	INSTALL a new heated rear window. CHECK that the system is working properly.
	→ No
	3-Door, 5-Door, and Wagon REPAIR heated rear window ground circuit. CHECK for proper system operation. 4-Door: REPAIR 31-HB19 (Black) circuit. CHECK for proper system operation.
U6: CHECK THE OPERATION OF THE WINDSHIELD HEATING RELAY
	1Press the windshield heating switch.
	• Does the relay click?
	→ Yes
	Go to U7
	→ No
	Go to U14
U7: CHECK VOLTAGE SUPPLIED TO WINDSHIELD HEATING GRILLE WIRES
	1Enter the OFF position.
	2Disconnect Heated Windscreen - C634.
	3Enter the START position.
	4Enter the ON position.
	5Measure the voltage between: • pin 2 C634 of the left wire of the heated windshield grille, electrical circuit 64S-HB12 (blue), from the wiring harness side, and ground. • pin 1 C634 of the right wire of the heated windshield grille, electrical circuit 64S-HB25 (blue/red), on the wiring harness side, and "ground".
	• Is the voltage greater than 10 V in all cases?
	→ Yes
	Go to U8
	→ No
	Go to U17
U8: CHECK WINDSHIELD HEATER GRILLE WIRE GROUND CIRCUIT
	1Enter the OFF position.
	2Measure the resistance between the heated windshield ground circuits and ground.
	• Is the resistance less than 5 ohms in all cases?
	→ Yes
	Go to U9
	→ No
	REPAIR the heated windshield ground circuit. CHECK for proper system operation.
U9: CHECK WINDSHIELD HEATING GRILLE WIRES
	1Measure the resistance between: • pin 2 C634 of the wire of the heated windshield grille (left element), from the element side, and "ground" • pin 1 C634 of the windshield heating grille wire (right element), from the element side, and ground.
	• Is the resistance greater than 10,000 ohms?
	→ Yes
	INSTALL the new windshield. CHECK the system for proper operation.
	→ No
	CHECK the validity of the customer's complaint.
U10: PRESS THE REAR WINDOW DEHEATER SWITCH.
	1Press the rear window defroster switch.
	• Check fuse F7 (40 A)
	→ Yes
	Go to U11
	→ No
	Go to U18
U11: CHECK VOLTAGE SUPPLIED TO CENTRAL JUNCTION BOX (CJB) FUSE 49 (25A)
	1Enter the OFF position.
	2Disconnect Fuse 49 (25A).
	3Measure the voltage between the input of fuse 49 (25A) and ground.
	• Is the voltage more than 10V?
	→ Yes
	Go to U12
	→ No
	REPAIR the central junction box. CHECK the system for proper operation.
U12: CHECK REAR WINDOW HEATED CIRCUIT VOLTAGE
	1Disconnect Rear Window Defogger - C949.
	2Enter the ON position.
	3Measure the voltage between: • 3-door, 5-door and wagon - pin 1 C949 rear window heater, electrical circuit 15S-HB19 (green/blue), on the wiring harness side, and ground. • 4-door version - pin 1 C950 rear window heating, electrical circuit 15S-HB19 (green/blue), on the wiring harness side, and ground.
	• Is the voltage more than 10V?
	→ Yes
	Go to U13
	→ No
	REPAIR chain 15S-HB19 (green/blue). CHECK system operation for proper operation.
U13: CHECK HEATED REAR GLASS GROUND CIRCUIT
	1Enter the OFF position.
	2Disconnect Rear Window Defogger - C951.
	3Measure the resistance between: • 3-door version, 5-door version and "station wagon" - electrical grounding circuit for rear window with heating and "mass". • 4-door version - pin 1 C951 rear window heating, electrical circuit 31-HB19 (black), on the wiring harness side, and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	INSTALL a new heated rear window. CHECK that the system is working properly.
	→ No
	3-Door, 5-Door, and Wagon: REPAIR heated rear window ground circuit. CHECK for proper system operation. 4-Door: REPAIR 31-HB19 (Black) circuit. CHECK for proper system operation.
U14: CHECK VOLTAGE SUPPLIED TO WINDSHIELD HEATING RELAY
	1Enter the OFF position.
	2Disconnect the Heated Windshield Relay - C1003.
	3Enter the START position.
	4Enter the ON position.
	5Measure the voltage between pin 1 of the heated windshield relay C1003, circuit 64 - HB7 (BU/RED), wiring harness side and ground.
	• Is the voltage more than 10V?
	→ Yes
	Go to U15
	→ No
	REPAIR electrical circuit 64-HB7 (blue/red). CHECK for proper system operation.
U15: CHECK FOR OPEN CIRCUIT BETWEEN COMMON ELECTRONIC MODULE (GEM) AND GROUND"
	1Enter the OFF position.
	2Disconnect GEM - C104..
	3Press the windshield heating switch.
	4Measure the resistance between GEM module C104 pin 13, circuit 31S-HB9 (black/white), wiring harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to U16
	→ No
	Go to U20
U16: CHECK FOR OPEN CIRCUIT BETWEEN WINDSHIELD HEATER RELAY AND GEM MODULE
	1Disconnect GEM - C103..
	2Measure the resistance between pin 2 of the heated windshield relay C1003, circuit 31S-HB7 (BK/BU), harness side and pin 23 of the GEM module C103, circuit 31S-HB7A (BK/BU), harness side.
	• Is the resistance less than 5 ohms?
	→ Yes
	INSTALL a new heated windshield relay. CHECK the system for proper operation.
	→ No
	REPAIR chain 31S-HB7 (black/blue). CHECK for proper system operation.
U17: CHECK FOR OPEN CIRCUIT BETWEEN WINDSHIELD HEATER RELAY AND WINDSHIELD HEATER GRILLE WIRES
	1Enter the OFF position.
	2Disconnect the Heated Windshield Relay - C1003.
	3Measure the resistance between: • pin 5 C1003 left wire grille - windshield heating relay, electrical circuit 64S-HB1 (blue/red), from the wiring harness side, and pin 2 C634 left wire grille heating windshield, electrical circuit 64S-HB12 (blue), from the wiring harness side. • pin 5 C1003 right wire grille - heated windshield relay, circuit 64S-HB1 (blue/red), wiring harness side, and pin 1 C634 right wire grille - heated windshield relay, circuit 64S-HB25 (blue/red), wiring harness side.
	• Is the resistance less than 5 ohms in all cases?
	→ Yes
	INSTALL a new heated windshield relay. CHECK the system for proper operation.
	→ No
	REPAIR circuit 64S-HB1 (blue/red), circuit 64S-HB12 (blue), or circuit 64S-HB25 (blue/red). CHECK for proper system operation.
U18: CHECK FOR OPEN CIRCUIT BETWEEN REAR WINDOW DEHEATER RELAY AND GENERAL ELECTRONIC MODULE (GEM)
	1Enter the OFF position.
	2Disconnect Rear Window Defogger Relay - C1025.
	3Disconnect GEM - C105..
	4Measure the resistance between rear window defogger relay (CJB) pin 2 C1025, harness side, and central timer module pin 15 C105, circuit 31S-HB20 (BK/GN), harness side.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to U19
	→ No
	REPAIR the central junction box. Check that the system is working properly.
U19: CHECK FOR OPEN CIRCUIT BETWEEN GEM MODULE AND GROUND"
	1Disconnect GEM - C104..
	2Press the rear window defroster switch
	3Measure the resistance between GEM module C104 pin 20, circuit 31S-HB22 (Black/Green), wiring harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	INSTALL a new rear window defroster relay. Check that the system is operating correctly.
	→ No
	Go to U22
U20: CHECK FOR OPEN CIRCUIT BETWEEN GEM MODULE AND HEATER CONTROL MODULE
	1Enter the OFF position.
	2Disconnect the Heater Control Module - C380.
	3Measure the resistance between GEM C104 pin 13, circuit 13S-HB9 (BK/WH), harness side and Heater Control Module C380 pin 5, circuit 31S-HB9 (BK/WH), harness side.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to U21
	→ No
	REPAIR electrical circuit 31S-HB9 (black/white). Check for proper system operation.
U21: CHECK HEATER CONTROL MODULE GROUND CIRCUIT
	1Measure the resistance between heater control module C380 pin 12, circuit 91-FA13 (Black/Orange) harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	INSTALL a new heater control module. Check that the system is operating correctly.
	→ No
	REPAIR circuit 91-FA13 (black/orange). Check for proper system operation.
U22: CHECK FOR OPEN CIRCUIT BETWEEN GEM MODULE AND HEATER CONTROL MODULE
	1Disconnect the Heater Control Module - C380..
	2Measure the resistance between GEM pin 20 C104, circuit 31S-HB22 (BK/GN), harness side and Heater Control Module pin 3 C380, circuit 31S-HB22 (BK/GN), harness side.
	• Is the resistance less than 5 ohms?
	→ Yes
	Go to U23
	→ No
	REPAIR electrical circuit 31S-HB22 (black/green). Check for proper system operation.
U23: CHECK FOR OPEN CIRCUIT BETWEEN HEATER CONTROL MODULE AND GROUND"
	1Measure the resistance between heater control module C380 pin 12, circuit 91-FA13 (Bk/Orange), wiring harness side and ground.
	• Is the resistance less than 5 ohms?
	→ Yes
	INSTALL a new heater control module. Check that the system is operating correctly.
	→ No
	REPAIR circuit 91-FA13 (black/orange). Check for proper system operation.