| Last Modified: 11-27-2007 | 1.6 G | |
| Service Category: Vehicle Interior | Section: Meter/Gauge/Display | |
| Model Year: 2008 | Model: LX570 | Doc ID: RM000003E36000X |
| Title: METER / GAUGE / DISPLAY: LIGHT CONTROL RHEOSTAT: INSPECTION (2008 LX570) | ||
INSPECTION
1. INSPECT LIGHT CONTROL RHEOSTAT
(a) Inspect the light control rheostat.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
6 (TC) - 5 (T) |
TAIL cancel switch off → on |
10 kΩ or higher → Below 1 Ω |
|
5 (T) - 1 (E) |
Always |
10 kΩ +/-20% |
|
7 (TR) - 1 (E) |
Light control rheostat fully turned right → fully turned left |
10 kΩ +/-20% → Below 100 Ω |
(b) Inspect the ODO/TRIP switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
4 (A/B) - 1 (E) |
ODO/TRIP switch on (Pushed) |
Below 100 Ω |
|
ODO/TRIP switch off (Not pushed) |
1 MΩ or higher |
(c) Apply battery voltage to the connector and check the LED illumination condition.
OK:
|
Measurement Condition |
Specified Condition |
|---|---|
|
Battery positive (+) → Terminal 2 (ILL+) Battery negative (-) → Terminal 3 (ILL-) |
Light illuminates |
If the result is not as specified, replace the rheostat.
|
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