| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Exterior | Section: Sliding Roof/Convertible | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM0000030NW004X |
| Title: SLIDING ROOF / CONVERTIBLE: SLIDING ROOF SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Sliding Roof ECU Power Source Circuit |
DESCRIPTION
If the sliding function and tilt function do not operate, there may be a malfunction in the sliding roof ECU power source circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (IGNITION SWITCH SIGNAL) |
(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 / Sliding Roof / Data List.
(e) According to the display on the Techstream, read the Data List.
Sliding Roof
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Ignition (Direct Signal) |
Ignition switch signal/ON or OFF |
ON: Ignition switch ON OFF: Ignition switch off |
- |
|
Ignition (MPX) |
Ignition switch signal (MPX signal)/ON or OFF |
ON: Ignition switch ON OFF: Ignition switch off |
- |
OK:
The Techstream displays as shown in the table according to the operation of each switch.
|
|
2. |
INSPECT FUSE (S/ROOF, ECU-IG No. 1) |
|
(a) Remove the S/ROOF and ECU-IG No. 1 fuses from the main body ECU. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
S/ROOF fuse |
Always |
Below 1 Ω |
|
ECU-IG No. 1 fuse |
Always |
Below 1 Ω |
|
|
3. |
CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU - BATTERY AND BODY GROUND) |
|
(a) Disconnect the U3 ECU connector. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage :
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
U3-9 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
|
Ignition switch off |
Below 1 V |
|
|
U3-10 (B) - Body ground |
Always |
11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
U3-8 (E) - Body ground |
Always |
Below 1 Ω |
|
|
|