| Last Modified: 11-27-2007 | 1.6 G | |
| Service Category: Vehicle Interior | Section: Lighting (int) | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000003A04002X |
| Title: LIGHTING (INT): ROOM LIGHT (for Front): ON-VEHICLE INSPECTION (2008 LX570) | ||
ON-VEHICLE INSPECTION
1. CHECK MAP LIGHT ASSEMBLY (ROOM LIGHT)
(a) Remove the map light with the connector connected.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
R7-3 (RLSW) - R7-16 (GND9) |
Rear spot light RH switch off |
Below 1 V |
|
Rear spot light RH switch on |
11 to 14 V |
|
|
R7-4 (RRSW) - R7-16 (GND9) |
Rear spot light LH switch off |
Below 1 V |
|
Rear spot light LH switch on |
11 to 14 V |
|
|
R12-18 (RILL) - R7-17 (GND9) |
Rear dome light off |
11 to 14 V |
|
Rear dome light on |
Below 1 V |
|
|
R7-11 (ILLB) - R7-16 (GND9) |
Always |
11 to 14 V |
|
R7-6 (+B) - R7-16 (GND9) |
Always |
11 to 14 V |
|
R7-27 (DOME) - R7-16 (GND9) |
Always |
11 to 14 V |
|
R12-7 (RLMP) - R7-16 (GND9) |
Always |
11 to 14 V |
|
R12-8 (RRMP) - R7-16 (GND9) |
Always |
11 to 14 V |
|
R12-11 (ILL+) - R7-16 (GND9) |
Engine switch on (ACC) |
11 to 14 V |
|
R12-13 (ILL-) - R7-16 (GND9) |
Headlight dimmer switch off |
Below 1 V |
|
Headlight dimmer switch TAIL |
11 to 14 V |
|
|
R12-14 (RRVT) - R7-16 (GND9) |
Back door closed |
Below 1 V |
|
Back door open |
11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
R7-16 (GND9) - Body ground |
Always |
Below 1 Ω |
If the result is not as specified, replace the map light.
|
|