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 of letters that may be on the component or next to it.
Scheme 779
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 780
Scheme 781
Component testing procedure
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Starter relay circuit | 4 and 7 | Off | Open circuit |
| ACC | Open circuit | ||
| Run | Open circuit | ||
| Start | Closed circuit | ||
| Run/Start power circuit | 4 and 1 | Off | Open circuit |
| ACC | Open circuit | ||
| Run | Closed circuit | ||
| Start | Closed circuit | ||
| Run/ACC power circuit | 4 and 6 | Off | Open circuit |
| ACC | Closed circuit | ||
| Run | Closed circuit | ||
| Start | Open circuit | ||
| Key reminder circuit | 4 and 5 | Key in | Closed circuit |
| Key Out | Open circuit | ||
| Key removal inhibit circuit | 4 and 3 | 65-75 ohms |
COMPONENT TESTING PROCEDURE CHART
Scheme 782
Scheme 783
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| ACC power circuit | 6 and 3 | Off | Open circuit |
| ACC | Closed circuit | ||
| Run | Open circuit | ||
| Start | Closed circuit | ||
| Run/Start power circuit | 4 and 1 | Off | Open circuit |
| ACC | Open circuit | ||
| Run | Closed circuit | ||
| Start | Open circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 784
Scheme 785
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Switch lock | 2, C504a and 2, C504b | Unlock | Closed circuit |
| Lock | Open circuit | ||
| Left front window circuit | 2, C504a and 1, 504a | Down | Closed circuit |
| 2, C504a and 5, C504a | Up | Closed circuit | |
| 2, C504a and 7, C504a | One-Touch Up/Down | Closed circuit | |
| Right front window circuit | 2, C504a and 6, C504a | Up | Closed circuit |
| 2, C504a and 4, C504a | Down | Closed circuit | |
| 7, C504b and 8, C504a 7, C504b and 4, C504a | Rest | Closed circuit | |
| Left rear window circuit | 2, C504a and 5, C504b | Down | Closed circuit |
| 2, C504a and 1, C504b | Up | Closed circuit | |
| 7, C504b and 5, C504b 7, C504b and 1, C504b | Rest | Closed circuit | |
| Right rear window circuit | 2, C504a and 8, C504b | Up | Closed circuit |
| 2, C504a and 4, C504b | Down | Closed circuit | |
| 7, C504b and 8, C504b 7, C504b and 4, C504b | Rest | Closed circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 786
Scheme 787
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Window adjust switches | 3 and 5, 1 and 2 | Up | Closed circuit |
| 3 and 2, 6 and 5 | Down | Closed circuit | |
| 6 and 5 | Rest | Closed circuit | |
| 1 and 2 |
COMPONENT TESTING PROCEDURE CHART
Scheme 788
Scheme 789
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Switch lock | 3, C535b and 4, C535b | Lock On | Closed circuit |
| Lock Off | Open circuit | ||
| Left front window circuit | 3, C535a and 4, C535a | Up | Closed circuit |
| 3, C535a and 7, C535a | Down | Closed circuit | |
| 3, C535a and 8, C535a | One-Touch Up/Down | Closed circuit | |
| Right front window circuit | 3, C535a and 5, C535a | Up | Closed circuit |
| 3, C535a and 2, C535a | Down | Closed circuit | |
| 3, C535a and 1, C535a | One-Touch Up/Down | Closed circuit | |
| Left rear window circuit | 3, C535b and 2, C535b | Up | Closed circuit |
| 3, C535b and 1, C535b | Down | Closed circuit | |
| Right rear window circuit | 3, C535b and 8, C535b | Up | Closed circuit |
| 3, C535a and 7, C535b | Down | Closed circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 790
Scheme 791
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| One-Touch Up/Down | 4 and 6 | One-Touch Up/Down | Closed circuit |
| Neutral | Open circuit | ||
| Right front window circuit | 2 and 3 | Up | Closed circuit |
| 5 and 2 | Down | Closed circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 792
Scheme 793
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Window adjust switches | 5 and 3, 1 and 2 | Up | Closed circuit |
| 3 and 2, 6 and 5 | Down | Closed circuit | |
| 6 and 2 | Rest | Closed circuit | |
| 1 and 5 |
COMPONENT TESTING PROCEDURE CHART
Scheme 794
Scheme 795
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Horizontal circuit | 4 and 3 6 and 2 | Forward | Closed circuit |
| Closed circuit | |||
| 4 and 6 3 and 2 | Rearward | Closed circuit | |
| Closed circuit | |||
| Front Height circuit | 4 and 1 8 and 2 | Up | Closed circuit |
| Closed circuit | |||
| 4 and 8 1 and 2 | Down | Closed circuit | |
| Closed circuit | |||
| Rear Height circuit | 4 and 5 7 and 2 | Up | Closed circuit |
| Closed circuit | |||
| 4 and 7 5 and 2 | Down | Closed circuit | |
| Closed circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 796
Scheme 797
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Horizontal circuit | 5 and 4 9 and 3 | Forward | Closed circuit |
| Closed circuit | |||
| 5 and 9 4 and 3 | Rearward | Closed circuit | |
| Closed circuit | |||
| Front Height circuit | 5 and 2 6 and 3 | Up | Closed circuit |
| Closed circuit | |||
| 5 and 6 2 and 3 | Down | Closed circuit | |
| Closed circuit | |||
| Rear Height circuit | 5 and 1 12 and 3 | Up | Closed circuit |
| Closed circuit | |||
| 5 and 12 1 and 3 | Down | Closed circuit | |
| Closed circuit | |||
| Backrest circuit | 5 and 8 11 and 3 | Rearward | Closed circuit |
| Closed circuit | |||
| 5 and 11 8 and 3 | Forward | Closed circuit | |
| Closed circuit | |||
| Lumbar circuit | 5 and 7 10 and 3 | Out | Closed circuit |
| Closed circuit | |||
| 5 and 10 7 and 3 | In | Closed circuit | |
| Closed circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 798
Scheme 799
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Lock/unlock circuit | 3 and 4 | Rest | Open circuit |
| Lock | Open circuit | ||
| Unlock | Closed circuit | ||
| 1 and 4 | Rest | Open circuit | |
| Lock | Closed circuit | ||
| Unlock | Open circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 800
Scheme 801
| 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 | 1 and 6 3 and 5 | Up | Closed circuit |
| Down | 1 and 5 3 and 6 | Down | Closed circuit |
| Left | 1 and 8 3 and 6 | Left | Closed circuit |
| Right | 1 and 6 3 and 8 | Right | Closed circuit |
| Right mirror | Selector switch right | ||
| Up | 1 and 6 3 and 2 | Up | Closed circuit |
| Down | 1 and 2 3 and 6 | Down | Closed circuit |
| Left | 1 and 7 3 and 6 | Left | Closed circuit |
| Right | 1 and 6 3 and 7 | Right | Closed circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 802
Scheme 803
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Tilt | 2 and 6 | Tilt open (push) | Closed circuit |
| 2 and 6 | Tilt close (pull) | Closed circuit | |
| Open | 2 and 4 | Tilt open (push) | Closed circuit |
| 2 and 4 | Slide open (push) | Closed circuit | |
| Close | 2 and 3 | Tilt close (pull) | Closed circuit |
| 2 and 3 | Slide close (pull) | Closed circuit |
COMPONENT TESTING PROCEDURE CHART
Scheme 804
Scheme 805
Component testing procedure (no voltage applied)
| Circuit to test | Connect ohmmeter to terminals | A good relay will indicate |
|---|---|---|
| Coil | 1 and 2 | 66 - 106 Ohms |
| Contact | 3 and 4 | Closed circuit |
| 3 and 5 | Open circuit | |
| Coil - Contact | 1 and 3 | Open circuit |
| 1 and 4 | Open circuit | |
| 1 and 5 | Open circuit |
COMPONENT TESTING PROCEDURE CHART (NO VOLTAGE APPLIED)
Component testing procedure (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.
Scheme 806
Scheme 807
| Circuit to test | Connect ohmmeter to terminals | A good relay will indicate |
|---|---|---|
| Coil | 1 and 2 | 87 - 216 Ohms |
| Contact | 3 and 5 | Open circuit |
| Coil - Contact | 2 and 3 | Open circuit |
| 2 and 5 | Open circuit |
COMPONENT TESTING PROCEDURE CHART (NO VOLTAGE APPLIED)
Disconnect the ohmmeter and connect pins 3 and 1 to 12V DC power and pin 2 to ground. Measure voltage between pins 5 and 2: If the voltage is 12V, the relay is okay. If not, replace the relay.
Scheme 808
Scheme 809
| Circuit to test | Connect ohmmeter to terminals | A good relay will indicate |
|---|---|---|
| Coil | 1 and 2 | 46 - 79 Ohms |
| Contact | 3 and 5 | Open circuit |
| Coil - Contact | 2 and 3 | Open circuit |
| 2 and 5 | Open circuit |
COMPONENT TESTING PROCEDURE CHART (NO VOLTAGE APPLIED)
Disconnect the ohmmeter and connect pins 3 and 1 to 12V DC power and pin 2 to ground. Measure voltage between pins 5 and 2. If the voltage is 12V, the relay is okay. If not, replace the relay.