Component Testing — Lincoln Town Car III рестайлинг (2003-2011)

Introduction

Component testing procedures are provided to determine whether a component is good or bad.

Testing information for each component includes a schematic, a view of the terminal locations and step-by-step test procedures. Terminal locations are identified by numbers or letters that may be on the component or next to it.

Scheme 2

Scheme 2: Introduction

The component connector MUST BE REMOVED before testing. To test a single circuit within the component, select that circuit under the column "Circuit to test". If you wish to test the complete component, perform all tests.

Connect the tester to the terminals shown in the second column and operate the component as shown in the third column.

Scheme 3

Scheme 3: Schematic

Scheme 4

Scheme 4: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions
Autolamp circuit	4 and 7 (C205a)	Autolamps	Closed circuit
		Off	Open circuit
		Parking lamps
		Headlamps
Parking lights circuit	5 and 7 (C205a)	Autolamps	Open circuit
		Off	Open circuit
		Parking lamps	Closed circuit
		Headlamps	Open circuit
Headlamp circuit	10 and 7 (C205a)	Autolamps	Open circuit
		Off
		Parking lamps
		Headlamps	Closed circuit
Interior lamps circuit	5 and 4 (C205b)	Interior lamps	Closed circuit
Interior lamps circuit	5 and 4 (C205b)	Off	Open circuit
Illumination dimmer resistor	6 and 4 (C205b)	Rotate knob clockwise	Ohmmeter will show smoothly increasing resistance
Fog lamps circuit	6 and 7 (C205a)	Fog lamps	Closed circuit
Fog lamps circuit	6 and 7 (C205a)	Off	Open circuit

MAIN LIGHT SWITCH - COMPONENT TESTING

Scheme 5

Scheme 5: Schematic

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions
Run power circuit	8 and 7	Lock	Open circuit
		Accessory	Open circuit
		Run	Closed circuit
		Start	Open circuit
Run/Start power circuit	9 and 1	Lock	Open circuit
		Accessory	Open circuit
		Run	Closed circuit
		Start	Closed circuit
Run/Acc power circuit	9 and 5	Lock	Open circuit
		Accessory	Closed circuit
		Run	Closed circuit
		Start	Open circuit
Start power circuit	9 and 10	Lock	Open circuit
		Accessory
		Run
		Start	Closed circuit
Key in ignition	8 and 3	Lock	Closed circuit
		Accessory
		Run
		Start

IGNITION SWITCH - COMPONENT TESTING

Scheme 6

Scheme 6: Terminals

Scheme 7

Scheme 7: Schematic

Scheme 8

Scheme 8: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Washer switch circuit	2 and 5	Washer switch depressed	Closed circuit
Wiper switch circuit	6 and 5	Off	Open circuit
		High	Closed circuit
		Low	Closed circuit
	1 and 5	Off	Closed circuit
		High	Open circuit
		Low	Open circuit
	4 and 5	Off	Open circuit
		High	Closed circuit
		Low	Closed circuit
Intermittent wiper circuit	6 and 5	Interval 1	Open circuit
		Interval 2
		Interval 3
		Interval 4	Closed circuit
		Interval 5	Closed circuit
	3 and 5	Interval 1	Open circuit
		Interval 2	Closed circuit
		Interval 3
		Interval 4
		Interval 5	Open circuit
	4 and 5	Interval 1	Closed circuit
		Interval 2	Closed circuit
		Interval 3	Open circuit
		Interval 4
		Interval 5

MULTIFUNCTION SWITCH, WIPER/WASHER PORTION - COMPONENT TESTING

Scheme 9

Scheme 9: Schematic

Scheme 10

Scheme 10: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
High beam	9 and 10	High beam	Closed circuit
		Flash-to-pass	Open circuit
		Low beam	Open circuit
Low beam/ Flash-to-pass	11 and 10	High beam	Open circuit
		Flash-to-pass	Closed circuit
		Low beam	Open circuit
Low beam/ Flash-to-pass	9 and 1	Left turn	Closed circuit
Low beam/ Flash-to-pass	9 and 1	Off	Open circuit
Low beam/Flash-to-pass	9 and 3	Right turn	Closed circuit
Low beam/Flash-to-pass	9 and 3	Off	Open circuit

MULTIFUNCTION SWITCH, LAMP PORTION - COMPONENT TESTING

Scheme 11

Scheme 11: Schematic

Scheme 12

Scheme 12: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Turn signal	1 and 2 (C202c)	Left turn, Hazard off	Closed circuit
	1 (C202c) and 2 (C202a)
	4 and 5 (C202c)
	4 (C202c) and 2 (C202a)	Right turn, Hazard off	Closed circuit
	1 and 5 (C202c)
	1 and 3 (C202c)
Stoplamps	9 and 10 (C202c)	Turn signal switch in neutral, Hazard off	Closed circuit
	4 (C202c) and 2 (C202a)
	4 and 5 (C202c)
Hazard	6 and 10 (C202c)	Hazard on, Turn signal switch in neutral	Closed circuit
	1 and 2 (C202c)
	1 (C202c) and 2 (C202a)
	1 and 5 (C202c)
	1 and 3 (C202c)

MULTIFUNCTION SWITCH, LAMP PORTION - COMPONENT TESTING

Scheme 13

Scheme 13: Schematic

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Power and Ground Checks before any other tests	8 (504b) and 3 (C504a)	All eight window switches (at rest)	Open circuit
	8 (504b) and 4 (C504a)
	8 (504b) and 1 (C504a)
	8 (504b) and 2 (C504a)
	8 (504b) and 7 (C504a)
	8 (504b) and 8 (C504a)
	8 (504b) and 5 (C504a)
	5 (504b) and 3 (C504a)	All eight window switches (at rest)	Closed circuit
	5 (504b) and 4 (C504a)
	5 (504b) and 1 (C504a)
	5 (504b) and 2 (C504a)
	5 (504b) and 7 (C504a)
	5 (504b) and 8 (C504a)
Left front window circuit	8 (504b) and 5 (C504a)	Up	Closed circuit
Right front window circuit	8 (504b) and 8 (C504a)	Down	Closed circuit
	5 (504b) and 7 (C504a)	Down
	8 (504b) and 7 (C504a)	Up
	5 (504b) and 8 (C504a)	Up
Left rear window circuit	8 (504b) and 1 (C504a)	Down	Closed circuit
	5 (504b) and 2 (C504a)	Down
	8 (504b) and 2 (C504a)	Up
	5 (504b) and 1 (C504a)	Up
Right rear window circuit	8 (504b) and 4 (C504a)	Down	Closed circuit
	5 (504b) and 3 (C504a)	Down
	8 (504b) and 3 (C504a)	Up
	5 (504b) and 4 (C504a)	Up

MASTER WINDOW ADJUST SWITCH - COMPONENT TESTING

Scheme 14

Scheme 14: Terminals

Scheme 15

Scheme 15: Schematic

Scheme 16

Scheme 16: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Up switch circuit	4 and 2	Up	Closed
Up switch circuit	5 and 6	Up	Closed
Down switch circuit	4 and 6	Down	Close
Down switch circuit	3 and 2	Down	Close

WINDOW ADJUST SWITCH, PASSENGER SIDE - COMPONENT TESTING

Scheme 17

Scheme 17: Schematic

Scheme 18

Scheme 18: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Up switch circuit	4 and 2	Up	Closed
Up switch circuit	5 and 6	Up	Closed
Down switch circuit	4 and 6	Down	Closed
Down switch circuit	3 and 2	Down	Closed

WINDOW ADJUST SWITCH, LEFT REAR - COMPONENT TESTING

Scheme 19

Scheme 19: Schematic

Scheme 20

Scheme 20: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Up switch circuit	4 and 2	Up	Closed
Up switch circuit	5 and 6	Up	Closed
Down switch circuit	4 and 6	Down	Closed
Down switch circuit	3 and 2	Down	Closed

WINDOW ADJUST SWITCH, RIGHT REAR - COMPONENT TESTING

Scheme 21

Scheme 21: Schematic

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Power and Ground Checks before any other tests	11 and 1, 2, 3, 4, 5, 8, 9, 10	Rest	Open circuit
Power and Ground Checks before any other tests	7 and 1, 2, 3, 4, 5, 8, 9, 10	Rest	Closed circuit
Front height circuit	11 and 1	Up	Closed circuit
	7 and 8	Up	Closed circuit
	11 and 8	Down	Closed circuit
	7 and 1	Down	Closed circuit
Rear height circuit	11 and 4	Up	Closed circuit
	7 and 5	Up	Closed circuit
	11 and 5	Down	Closed circuit
	7 and 4	Down	Closed circuit
Forward/rearward circuit	11 and 9	Rearward	Closed circuit
	7 and 10	Rearward	Closed circuit
	11 and 10	Forward	Closed circuit
	7 and 9	Forward	Closed circuit
Backrest circuit	11 and 3	Rearward	Closed circuit
	7 and 2	Rearward	Closed circuit
	11 and 2	Forward	Closed circuit
	7 and 3	Forward	Closed circuit

SEAT ADJUST SWITCH, DRIVER SIDE FRONT - WITHOUT MEMORY - COMPONENT TESTING

Scheme 22

Scheme 22: Terminals

Scheme 23

Scheme 23: Schematic

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Front height circuit	4 and 3	Up	Closed circuit
Front height circuit	4 and 5	Down	Closed circuit
Rear height circuit	4 and 12	Up	Closed circuit
Rear height circuit	4 and 6	Down	Closed circuit
Forward/rearward circuit	4 and 2	Forward	Closed circuit
Forward/rearward circuit	4 and 1	Rearward	Closed circuit
Backrest circuit	4 and 14	Forward	Closed circuit
Backrest circuit	4 and 16	Rearward	Closed circuit

SEAT ADJUST SWITCH, DRIVER SIDE FRONT - WITH MEMORY - COMPONENT TESTING

Scheme 24

Scheme 24: Terminals

Scheme 25

Scheme 25: Schematic

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Power and Ground Checks before any other tests	11 and 1, 2, 3, 4, 5, 8, 9, 10	Rest	Open circuit
Power and Ground Checks before any other tests	7 and 1, 2, 3, 4, 5, 8, 9, 10	Rest	Closed circuit
Front height circuit	11 and 1	Up	Closed circuit
	7 and 8	Up	Closed circuit
	11 and 8	Down	Closed circuit
	7 and 1	Down	Closed circuit
Rear height circuit	11 and 4	Up	Closed circuit
	7 and 5	Up	Closed circuit
	11 and 5	Down	Closed circuit
	7 and 4	Down	Closed circuit
Forward/rearward circuit	11 and 9	Rearward	Closed circuit
	7 and 10	Rearward	Closed circuit
	11 and 10	Forward	Closed circuit
	7 and 9	Forward	Closed circuit
Backrest circuit	11 and 3	Rearward	Closed circuit
	7 and 2	Rearward	Closed circuit
	11 and 2	Forward	Closed circuit
	7 and 3	Forward	Closed circuit

SEAT ADJUST SWITCH, PASSENGER SIDE FRONT - COMPONENT TESTING

Scheme 26

Scheme 26: Terminals

Scheme 27

Scheme 27: Schematic

Scheme 28

Scheme 28: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Lumbar circuit	2 and 1	In	Open circuit
	2 and 1	Out	Closed circuit
	2 and 7	In	Closed circuit
	2 and 7	Out	Open circuit
	3 and 1	In	Closed circuit
	3 and 1	Out	Open circuit
	6 and 7	In	Open circuit
	6 and 7	Out	Closed circuit

LUMBAR ADJUST SWITCH, LEFT FRONT - COMPONENT TESTING

Scheme 29

Scheme 29: Schematic

Scheme 30

Scheme 30: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Lumbar circuit	2 and 1	In	Open circuit
	2 and 1	Out	Closed circuit
	2 and 7	In	Closed circuit
	2 and 7	Out	Open circuit
	3 and 1	In	Closed circuit
	3 and 1	Out	Open circuit
	6 and 7	In	Open circuit
	6 and 7	Out	Closed circuit

LUMBAR ADJUST SWITCH, RIGHT FRONT - COMPONENT TESTING

Scheme 31

Scheme 31: Schematic

Scheme 32

Scheme 32: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Heater circuit	1 and 6	High	Closed circuit
	1 and 6	Low	Open circuit
	1 and 2	High	Open circuit
	1 and 2	Low	Closed circuit

SEAT HEATER SWITCH, DRIVER SIDE - COMPONENT TESTING

Scheme 33

Scheme 33: Schematic

Scheme 34

Scheme 34: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Heater circuit	1 and 6	High	Closed circuit
	1 and 6	Low	Open circuit
	1 and 2	High	Open circuit
	1 and 2	Low	Closed circuit

SEAT HEATER SWITCH, PASSENGER SIDE - COMPONENT TESTING

Scheme 35

Scheme 35: Schematic

Scheme 36

Scheme 36: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Lock Switch Circuit	4 and 2	Lock	Closed circuit
Lock Switch Circuit	4 and 2	Unlock	Open circuit
Unlock Switch Circuit	4 and 6	Lock	Open circuit
Unlock Switch Circuit	4 and 6	Unlock	Closed circuit

DOOR LOCK SWITCH, DRIVER SIDE - COMPONENT TESTING

Scheme 37

Scheme 37: Schematic

Scheme 38

Scheme 38: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Lock Switch Circuit	4 and 2	Lock	Closed circuit
Lock Switch Circuit	4 and 2	Unlock	Open circuit
Unlock Switch Circuit	4 and 6	Lock	Open circuit
Unlock Switch Circuit	4 and 6	Unlock	Closed circuit

DOOR LOCK SWITCH, PASSENGER SIDE - COMPONENT TESTING

Scheme 39

Scheme 39: Schematic

Scheme 40

Scheme 40: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Left mirror		Selector switch left
Up	4 and 6	Up	Closed circuit
Up	8 and 7	Up	Closed circuit
Down	4 and 7	Down	Closed circuit
6 and 8	4 and 7	Down	Closed circuit
Left	4 and 1	Left	Closed circuit
8 and 7	4 and 1	Left	Closed circuit
Right	4 and 7	Right	Closed circuit
1 and 8	4 and 7	Right	Closed circuit
Right mirror		Selector switch right
Up	4 and 5	Up	Closed circuit
Up	8 and 7	Up	Closed circuit
Down	4 and 7	Down	Closed circuit
8 and 5	4 and 7	Down	Closed circuit
Left	4 and 2	Left	Closed circuit
8 and 7	4 and 2	Left	Closed circuit
Right	4 and 7	Right	Closed circuit
2 and 8	4 and 7	Right	Closed circuit

EXTERIOR REAR VIEW MIRROR SWITCH - COMPONENT TESTING

Scheme 41

Scheme 41: Schematic

Scheme 42

Scheme 42: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Forward	2 and 7	Forward	Closed circuit
Forward	1 and 6	Forward	Closed circuit
Rearward	2 and 1	Rearward	Closed circuit
Rearward	3 and 7	Rearward	Closed circuit

ADJUSTABLE PEDAL SWITCH - COMPONENT TESTING

Scheme 43

Scheme 43: Schematic

Scheme 44

Scheme 44: Terminals

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Open	3 and 4	Open	Closed circuit
Close	1 and 4	Close	Closed circuit

ROOF OPENING PANEL SWITCH - COMPONENT TESTING

Scheme 45

Scheme 45: Schematic

Scheme 46

Scheme 46: Terminals

Circuit to test	Connect ohmmeter to terminals	A good relay will indicate
Coil	85 and 86	46 - 90
Contact	30 and 87a	Closed circuit
Contact	30 and 87	Open circuit
Coil - Contact	86 and 30	Open circuit
	86 and 87a	Open circuit
	86 and 87	Open circuit

RELAY - MINI ISO - COMPONENT TESTING (NO VOLTAGE APPLIED)

Disconnect the ohmmeter and connect pins 30 and 85 to 12V DC power and pin 86 to ground. Measure voltage between pins 87 and 86. If the voltage is 12V, continue with the test. If not, replace the relay. Disconnect power from pin 85 and measure voltage between pins 87a and 86. If the voltage is 12V, the relay is okay. If not, replace the relay.

Scheme 47

Scheme 47: Schematic

Scheme 48

Scheme 48: Terminals

Circuit to test	Connect ohmmeter to terminals	A good relay will indicate
Coil	1 and 2	63 - 120 ohms
Contact	3 and 4	Closed circuit
Contact	3 and 5	Open circuit
Coil - Contact	1 and 3	Open circuit
	1 and 4	Open circuit
	1 and 5	Open circuit

RELAY - MICRO ISO - COMPONENT TESTING (NO VOLTAGE APPLIED)

Disconnect the ohmmeter and connect pins 2 and 3 to 12V DC power and pin 1 to ground. Measure voltage between pins 5 and 1. If the voltage is 12V, continue with the test. If not, replace the relay. Disconnect power from pin 2 and measure voltage between pins 4 and 1. If the voltage is 12V, the relay is okay. If not, replace the relay.

Component Testing Lincoln Town Car III рестайлинг