| Last Modified: 11-29-2007 | 1.6 G | |
| Service Category: Vehicle Exterior | Section: Lighting (ext) | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002VED002X |
| Title: LIGHTING (EXT): HEADLIGHT DIMMER SWITCH: INSPECTION (2008 Sequoia) | ||
INSPECTION
1. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY
(a) Check the resistance of the light control switch.
|
(1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the headlight dimmer switch. |
(b) Check the resistance of the headlight dimmer switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
11 (HU) - 12 (EL) |
FLASH |
Below 1 Ω |
|
17 (HF) - 12 (EL) |
FLASH |
Below 1 Ω |
|
16 (HL) - 12 (EL) |
LOW BEAM |
Below 1 Ω |
|
11 (HU) - 12 (EL) |
HI BEAM |
Below 1 Ω |
If the result is not as specified, replace the headlight dimmer switch.
(c) Check the resistance of the turn signal switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
12 (EL) - 13 (TR) |
Right turn |
Below 1 Ω |
|
12 (EL) - 13 (TR) 12 (EL) - 15 (TL) |
Neutral |
10 kΩ or higher |
|
12 (EL) - 15 (TL) |
Left turn |
Below 1 Ω |
If the result is not as specified, replace the headlight dimmer switch.
(d) Check the resistance of the fog light switch.
(1) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
3 (LFG) - 4 (BFG) |
ON |
Below 1 Ω |
|
3 (LFG) - 4 (BFG) |
OFF |
10 kΩ or higher |
If the result is not as specified, replace the headlight dimmer switch.
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