| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VKGH |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - ] |
| Title: LIGHTING (EXT): HEADLIGHT DIMMER SWITCH: INSPECTION; 2016 - 2020 MY Sienna [12/2015 - ] | ||
INSPECTION
PROCEDURE
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. |
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(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 |
|---|---|---|
|
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 |
Text in Illustration
|
*a |
Component without harness connected (Headlight Dimmer Switch Assembly) |
If the result is not as specified, replace the headlight dimmer switch.
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