| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Theft Deterrent/Keyless Entry | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000001PR2016X |
| Title: THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Engine Hood Courtesy Switch Circuit |
DESCRIPTION
The engine hood courtesy switch is installed together with the hood lock. This switch turns off when the engine hood is opened and turns on when the engine hood is closed.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM |
(a) Connect a Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream main switch on.
(d) Select the item below in the Data List and read the display on the Techstream.
Main Body
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Hood Courtesy Switch |
Engine hood courtesy switch signal ON/OFF |
ON: Engine hood is OPEN OFF: Engine hood is CLOSED |
- |
OK:
The indicator on the Techstream switches between ON and OFF in accordance with the engine hood courtesy switch status.
|
|
3. |
INSPECT ENGINE HOOD COURTESY SWITCH |
(a) Disconnect the A35 engine hood courtesy switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
1 - 2 |
LOCK position |
Below 1 Ω |
|
UNLOCK position |
10 kΩ or higher |
|
|
4. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ENGINE HOOD COURTESY SWITCH) |
|
(a) Disconnect the HJ4 main body ECU connector. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H4-16 (HCTY) - A35-1 |
Always |
Below 1 Ω |
|
A35-2 - Body ground |
Always |
Below 1 Ω |
|
H4-16 (HCTY) or A35-1 - Body ground |
Always |
10 kΩ or higher |
|
|
|