| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Lighting (ext) | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002T2F007X |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: WIRING DIAGRAM (2008 LX570) | ||
|
Interior Foot Light does not Illuminate |
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (DOOR COURTESY SWITCH) |
(a) Using the Techstream, read the Data List.
Main Body
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
D Door Courtesy SW |
Front door courtesy light switch LH signal/ON or OFF |
ON: Front Door LH opened OFF: Front Door LH closed |
- |
|
P Door Courtesy SW |
Front door courtesy light switch RH signal/ON or OFF |
ON: Front Door RH opened OFF: Front Door RH closed |
- |
|
RL Door Courtesy SW |
Rear door courtesy light switch LH signal/ON or OFF |
ON: Rear Door LH opened OFF: Rear Door LH closed |
- |
|
RR Door Courtesy SW |
Rear door courtesy light switch RH signal/ON or OFF |
ON: Rear Door RH opened OFF: Rear Door RH closed |
- |
Result
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG (D Door Courtesy SW) |
B |
|
NG (P Door Courtesy SW) |
C |
|
NG (RL Door Courtesy SW) |
D |
|
NG (RR Door Courtesy SW) |
E |
|
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM (FRONT INTERIOR FOOT LIGHT) |
(a) Using the Techstream, perform the Active Test.
Main Body
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Step Light Operation |
Front interior foot light illumination operation |
OFF/ON |
- |
OK:
Front interior foot light condition can be switched by Active Test.
|
|
3. |
CONFIRM LIGHT POSITION |
(a) Check the malfunctioning interior foot light.
Result
|
Result |
Proceed to |
|---|---|
|
Front interior foot light LH |
A |
|
Front interior foot light RH |
B |
|
Rear interior foot light LH |
C |
|
Rear interior foot light RH |
D |
|
All does not light illuminate |
E |
|
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT INTERIOR FOOT LIGHT LH - BATTERY) |
(a) Disconnect the E81 light connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E81-2 - Body ground |
Always |
11 to 14 V |
|
|
5. |
INSPECT NO. 1 INTERIOR ILLUMINATION LIGHT LH (FRONT INTERIOR FOOT LIGHT LH) |
(a) Remove the front interior foot light LH
.
(b) Apply battery voltage to the front interior foot light and check the light condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1 |
Interior illumination light comes on |
|
|
6. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT INTERIOR FOOT LIGHT LH) |
(a) Disconnect the E3 ECU connector.
(b) Disconnect the E81 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E3-11 (FSPT) - E81-1 |
Always |
Below 1 Ω |
|
E81-1 - Body ground |
Always |
10 kΩ or higher |
|
|
7. |
CHECK HARNESS AND CONNECTOR (FRONT INTERIOR FOOT LIGHT RH - BATTERY) |
(a) Disconnect the E88 light connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E88-2 - Body ground |
Always |
11 to 14 V |
|
|
8. |
INSPECT NO. 1 INTERIOR ILLUMINATION LIGHT RH (FRONT INTERIOR FOOT RH) |
(a) Remove the front interior foot light RH
.
(b) Apply battery voltage to the front interior foot light and check the light condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1 |
Interior illumination light comes on |
|
|
9. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT INTERIOR FOOT LIGHT RH) |
(a) Disconnect the E3 ECU connector.
(b) Disconnect the E88 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E3-11 (FSPT) - E88-1 |
Always |
Below 1 Ω |
|
E88-1 - Body ground |
Always |
10 kΩ or higher |
|
|
10. |
CHECK HARNESS AND CONNECTOR (REAR INTERIOR FOOT LIGHT LH - BATTERY) |
(a) Disconnect the c32 light connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
c32-2 - Body ground |
Always |
11 to 14 V |
|
|
11. |
INSPECT INTERIOR ILLUMINATION LIGHT LH (REAR INTERIOR FOOT LIGHT LH) |
(a) Remove the rear interior foot light LH
.
(b) Apply battery voltage to the rear interior foot light and check the light condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1 |
Interior illumination light comes on |
|
|
12. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR INTERIOR ILLUMINATION LIGHT LH) |
(a) Disconnect the E3 ECU connector.
(b) Disconnect the c32 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E3-11 (FSPT) - c32-1 |
Always |
Below 1 Ω |
|
c32-1 - Body ground |
Always |
10 kΩ or higher |
|
|
13. |
CHECK HARNESS AND CONNECTOR (REAR INTERIOR FOOT LIGHT RH - BATTERY) |
(a) Remove the c44 ECU connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
c44-2 - Body ground |
Always |
11 to 14 V |
|
|
14. |
INSPECT INTERIOR ILLUMINATION LIGHT RH (REAR INTERIOR FOOT LIGHT RH) |
(a) Remove the rear interior foot light RH
.
(b) Apply battery voltage to the rear interior foot light and check the light condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 2 Battery negative (-) → Terminal 1 |
Interior illumination light comes on |
|
|
15. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR INTERIOR FOOT LIGHT RH) |
(a) Disconnect the E3 ECU connector.
(b) Disconnect the c32 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
E3-11 (FSPT) - c44-1 |
Always |
Below 1 Ω |
|
c44-1 - Body ground |
Always |
10 kΩ or higher |
|
|
16. |
INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH |
|
(a) Remove the front door courtesy light switch LH
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
pushed |
10 kΩ or higher |
|
|
17. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU AND BODY GROUND) |
|
(a) Disconnect the K2 switch connector. |
(b) Disconnect the E1 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
K2-1 - E1-24 (DCTY) |
Always |
Below 1 Ω |
|
K2-1 - Body ground |
Always |
10 kΩ or higher |
|
|
18. |
INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH |
|
(a) Remove the front door courtesy light switch RH
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
pushed |
10 kΩ or higher |
|
|
19. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU AND BODY GROUND) |
(a) Disconnect the L1 switch connector.
(b) Disconnect the E2 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L1-1 - E2-21 (PCTY) |
Always |
Below 1 Ω |
|
L1-1 - Body ground |
Always |
10 kΩ or higher |
|
|
20. |
INSPECT REAR DOOR COURTESY LIGHT SWITCH LH |
|
(a) Remove the rear door courtesy light switch LH
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
pushed |
10 kΩ or higher |
|
|
21. |
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH LH - MAIN BODY ECU AND BODY GROUND) |
(a) Disconnect the K3 switch connector.
(b) Disconnect the 2C ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
K3-1 - 2C-2 (LCTY) |
Always |
Below 1 Ω |
|
K3-1 - Body ground |
Always |
10 kΩ or higher |
|
|
22. |
INSPECT REAR DOOR COURTESY LIGHT SWITCH RH |
|
(a) Remove the rear door courtesy light switch RH
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - Body ground |
Not pushed |
Below 1 Ω |
|
pushed |
10 kΩ or higher |
|
|
23. |
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU AND BODY GROUND) |
(a) Disconnect the L2 switch connector.
(b) Disconnect the E2 ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L2-1 - E2-7 (RCTY) |
Always |
Below 1 Ω |
|
L2-1 - Body ground |
Always |
10 kΩ or higher |
|
|
|