| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Lighting (ext) | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002ZS1005X |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Headlight Dimmer Switch Circuit |
DESCRIPTION
The turn signal flasher receives a turn signal light information signal from the headlight dimmer switch assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
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1. |
INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY (TURN SIGNAL SWITCH) |
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(a) Remove the headlight dimmer switch assembly
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(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
13 (TR) - 12 (EL) |
Turn signal switch right turn |
Below 1 Ω |
|
Turn signal switch left turn |
10 kΩ or higher |
|
|
15 (TL) - 12 (EL) |
Turn signal switch left turn |
Below 1 Ω |
|
Turn signal switch right turn |
10 kΩ or higher |
(c) Reinstall the headlight dimmer switch assembly.
|
|
3. |
CHECK HARNESS AND CONNECTOR ((HEADLIGHT DIMMER SWITCH - TURN SIGNAL FLASHER) |
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(a) Disconnect the H11 headlight dimmer switch assembly connector. |
(b) Disconnect the H39 turn signal flasher assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H11-13 (TR) - H39-7 (ER) |
Always |
Below 1 Ω |
|
H11-15 (TL) - H39-6 (EL) |
Always |
Below 1 Ω |
|
H11-12 (EL) - Body ground |
Always |
Below 1 Ω |
|
H11-13 (TR) - Body ground |
Always |
10 kΩ or higher |
|
H11-15 (TL) - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the turn signal flasher assembly connector.
(e) Reconnect the headlight dimmer switch assembly connector.
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