| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Wiper/Washer | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002OXH007X |
| Title: WIPER / WASHER: WIPER AND WASHER SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Headlight Cleaner Switch Circuit |
DESCRIPTION
This circuit detects the conditions of the headlight cleaner switch.
- Headlight cleaner switch signal
- Headlight operating signal
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
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1. |
CHECK HEADLIGHT ASSEMBLY (LO BEAM) |
(a) Check that the headlights illuminate in LO beam.
OK:
Headlights illuminate in LO beam
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|
2. |
INSPECT HEADLIGHT CLEANER SWITCH ASSEMBLY |
|
(a) Remove the headlight cleaner switch assembly. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
5 (L) - 8 (B) |
Headlight cleaner switch OFF |
10 kΩ or higher |
|
Headlight cleaner switch ON |
Below 1 Ω |
(c) Reinstall the headlight cleaner switch assembly.
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|
3. |
CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER SWITCH ASSEMBLY - HEADLIGHT CLEANER CONTROL RELAY AND MAIN BODY ECU) |
|
(a) Disconnect the A32 headlight cleaner control relay connector. |
(b) Disconnect the H59 headlight cleaner switch assembly connector.
(c) Disconnect the DD main body ECU connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-2 (H) - H59-8 (B) |
Always |
Below 1 Ω |
|
A32-2 (H) or H59-8 (B) - Body ground |
Always |
10 kΩ or higher |
|
H59-5 (L) - DD-23 (HRLY) |
Always |
Below 1 Ω |
|
H59-5 (L) or DD-23 (HRLY) - Body ground |
Always |
10 kΩ or higher |
(e) Reconnect the headlight cleaner control relay connector.
(f) Reconnect the headlight cleaner switch assembly connector.
(g) Reconnect the main body ECU connector.
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