| Last Modified: 11-27-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Lighting (ext) | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000002T2Q007X |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: WIRING DIAGRAM (2008 LX570) | ||
|
Inside Handle Light does not Illuminate |
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this symptom.
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (DOOR COURTESY LIGHT 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 (INSIDE HANDLE ILLUMINATION LIGHT) |
(a) Using the Techstream, perform the Active Test.
Body No. 4
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Inside Handle Illumination |
Inside handle illumination light operation |
OFF/ON |
- |
OK:
Inside handle illumination light condition is switched by Active Test.
|
|
3. |
CONFIRM LIGHT POSITION |
(a) Check the malfunctioning Inside handle illumination light.
Result
|
Result |
Proceed to |
|---|---|
|
Front door inside handle illumination light LH |
A |
|
Front door inside handle illumination light RH |
B |
|
Rear door inside handle illumination light LH |
C |
|
Rear door inside handle illumination light RH |
D |
|
All does not light illuminate |
E |
|
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT LH - BATTERY) |
|
(a) Disconnect the I21 light connector. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I21-1 (+B) - Body ground |
Always |
11 to 14 V |
|
|
5. |
INSPECT FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT LH |
(a) Remove the front door inside handle illumination light LH
.
(b) Apply battery voltage to the inside handle illumination light and check the illumination condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 1 (+B) Battery negative (-) → Terminal 2 (GND) |
Inside handle illumination light on |
|
|
6. |
CHECK HARNESS AND CONNECTOR (NO. 2 MAIN BODY ECU - FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT LH) |
(a) Disconnect the L33 ECU connector.
(b) Disconnect the I21 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I21-2 (GND) - L33-6 (LSPT) |
Always |
Below 1 Ω |
|
I21-2 (GND) - Body ground |
Always |
10 kΩ or higher |
|
|
7. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT RH - BATTERY) |
|
(a) Disconnect the I20 light connector. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I20-1 (+B) - Body ground |
Always |
11 to 14 V |
|
|
8. |
INSPECT FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT RH |
(a) Remove the front door inside handle illumination light RH
.
(b) Apply battery voltage to the inside handle illumination light and check the illumination condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 1 (+B) Battery negative (-) → Terminal 2 (GND) |
Inside handle illumination light on |
|
|
9. |
CHECK HARNESS AND CONNECTOR (NO. 2 MAIN BODY ECU - FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT RH) |
(a) Disconnect the L33 ECU connector.
(b) Disconnect the I20 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I20-2 (GND) - L33-6 (LSPT) |
Always |
Below 1 Ω |
|
I20-2 (GND) - Body ground |
Always |
10 kΩ or higher |
|
|
10. |
CHECK HARNESS AND CONNECTOR (REAR DOOR INSIDE HANDLE ILLUMINATION LIGHT LH - BATTERY) |
|
(a) Disconnect the J18 light connector. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J18-1 (+B) - Body ground |
Always |
11 to 14 V |
|
|
11. |
INSPECT REAR DOOR INSIDE HANDLE ILLUMINATION LIGHT LH |
(a) Remove the rear door inside handle illumination light LH
.
(b) Apply battery voltage to the inside handle illumination light and check the illumination condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 1 (+B) Battery negative (-) → Terminal 2 (GND) |
Inside handle illumination light on |
|
|
12. |
CHECK HARNESS AND CONNECTOR (NO. 2 MAIN BODY ECU - REAR DOOR INSIDE HANDLE ILLUMINATION LIGHT LH) |
(a) Disconnect the L33 ECU connector.
(b) Disconnect the J18 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J18-2 (GND) - L33-6 (LSPT) |
Always |
Below 1 Ω |
|
J18-2 (GND) - Body ground |
Always |
10 kΩ or higher |
|
|
13. |
CHECK HARNESS AND CONNECTOR (REAR DOOR INSIDE HANDLE ILLUMINATION LIGHT RH - BATTERY) |
|
(a) Disconnect the J16 light connector. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J16-1 (+B) - Body ground |
Always |
11 to 14 V |
|
|
14. |
INSPECT REAR DOOR INSIDE HANDLE ILLUMINATION LIGHT RH |
(a) Remove the rear door inside handle illumination light RH
.
(b) Apply battery voltage to the inside handle illumination light and check the illumination condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 1 (+B) Battery negative (-) → Terminal 2 (GND) |
Inside handle illumination light on |
|
|
15. |
CHECK WIRE HARNESS AND CONNECTOR (NO. 2 MAIN BODY ECU - REAR DOOR INSIDE HANDLE ILLUMINATION LIGHT RH) |
(a) Disconnect the L33 ECU connector.
(b) Disconnect the J16 light connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J16-2 (GND) - L33-6 (LSPT) |
Always |
Below 1 Ω |
|
J16-2 (GND) - Body ground |
Always |
10 kΩ or higher |
|
|
33. |
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 |
|
|
34. |
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 |
|
|
35. |
INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH |
(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 |
|
|
36. |
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 |
|
|
37. |
INSPECT REAR 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 |
|
|
38. |
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 |
|
|
39. |
INSPECT REAR DOOR COURTESY LIGHT SWITCH RH |
(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 |
|
|
40. |
HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH RH - MAIN BODY ECU AND BODY GROUND) HARNESS AND CONNECTOR |
(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 |
|
|
|