| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Lighting (ext) | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002WL8004X |
| Title: LIGHTING (INT): LIGHTING SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Luggage Room Light Circuit |
DESCRIPTION
The back door ECU receives a luggage compartment light information signal from the back door courtesy light switch, and illuminates the luggage compartment light.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (LUGGAGE COMPARTMENT LIGHT) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Back Door P/W / Active Test / Luggage Compartment Light.
(e) According to the display on the Techstream, check the Active Test.
Back Door P/W
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Luggage Compartment Light |
Luggage Compartment Light |
ON or OFF |
Luggage Compartment Light switch is DOOR |
OK:
Luggage Compartment light turns on/off.
|
|
2. |
READ VALUE USING TECHSTREAM (BACK DOOR COURTESY SWITCH) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Back Door P/W / Data List / Back Door Courtesy Switch.
(e) According to the display on the Techstream, read the Data List.
Back Door P/W
|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Back Door Courtesy Switch |
Back Door Courtesy Switch / ON or OFF |
ON: Back door opened OFF: Back door closed |
- |
OK:
When back door courtesy switch operation is performed, the results are the same as above.
|
|
3. |
INSPECT BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY LIGHT SWITCH) |
|
(a) Disconnect the V5 back door lock assembly connector. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
w/o Power Back Door System
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
3 (E) - 4 (S) |
Back door closed |
10 kΩ or higher |
|
Back door opened |
Below 1 Ω |
w/ Power Back Door System
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
3 (E) - 5 (S) |
Back door closed |
10 kΩ or higher |
|
Back door opened |
Below 1 Ω |
(c) Reconnect the back door lock assembly connector.
|
|
4. |
CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - BACK DOOR ECU, BODY GROUND) |
|
(a) Disconnect the V5 back door lock assembly connector. |
(b) Disconnect the V3 back door ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
w/o Power Back Door System
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V3-10 (BDCY) - V5-4 (S) |
Always |
Below 1 Ω |
|
V3-20 (CTYE) - V5-3 (E) |
Always |
Below 1 Ω |
|
V5-3 (E) - Body ground |
Always |
10 kΩ or higher |
|
V5-4 (S) - Body ground |
Always |
10 kΩ or higher |
w/ Power Back Door System
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
V3-10 (BDCY) - V5-6 (S) |
Always |
Below 1 Ω |
|
V3-20 (CTYE) - V5-3 (E) |
Always |
Below 1 Ω |
|
V5-6 (S) - Body ground |
Always |
10 kΩ or higher |
|
V5-3 (E) - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the back door ECU connector.
(e) Reconnect the back door lock assembly connector.
|
|
5. |
INSPECT FUSE (DOME) |
|
(a) Remove the DOME fuse from the engine room relay block. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
DOME fuse |
Always |
Below 1 Ω |
(c) Reinstall the DOME fuse.
|
|
6. |
INSPECT LUGGAGE COMPARTMENT ROOM LIGHT |
|
(a) Remove the luggage compartment room light assembly
|
(b) Connect the (+) lead from the battery to terminal 1 and the (-) lead to terminal 2 or 3.
(c) Check that the room light comes on.
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
Battery positive (+) →1 (B) Battery negative (-) → 3 (E) |
Luggage compartment light switch ON |
Room light comes on |
|
Luggage compartment light switch DOOR |
Room light turns off |
|
|
Luggage compartment light switch OFF |
Room light turns off |
|
|
Battery positive (+) →1 (B) Battery negative (-) → 2 (CTY) |
Luggage room light switch ON |
Room light turns off |
|
Luggage compartment light switch DOOR |
Room light comes on |
|
|
Luggage compartment light switch OFF |
Room light turns off |
(d) Reinstall the luggage compartment room light assembly.
|
|
7. |
CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT LIGHT - BATTERY, BACK DOOR ECU) |
|
(a) Disconnect the U10 luggage compartment light assembly connector. |
(b) Disconnect the V2 back door ECU connector.
(c) Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
U10-1 (B) - Body ground |
Always |
11 to 14 V |
Standard Resistance:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
U10-2 (CTY) - V2-2 (LGLP) |
Always |
Below 1 Ω |
|
U10-3 (E) - Body ground |
Always |
10 kΩ or higher |
(d) Reconnect the back door ECU connector.
(e) Reconnect the luggage compartment light assembly connector.
|
|
|