| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Seat | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000001YWN005X |
| Title: SEAT: REAR POWER SEAT CONTROL SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Power Source Circuit |
DESCRIPTION
Power is supplied to the fold seat control ECU through the L1 RR2 SEAT*1, L2 RR2 SEAT*1, R1 RR2 SEAT*2 and R2 RR2 SEAT*2 fuses.
*1: LH Side
*2: RH Side
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT FUSE |
|
(a) Remove the L1 RR2 SEAT, L2 RR2 SEAT, R1 RR2 SEAT and R2 RR2 SEAT fuses from the engine room relay block. |
(b) Remove the ECU-IG No. 2 fuse from the main body ECU.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
ECU-IG No. 2 fuse |
Always |
Below 1 Ω |
|
L1 RR2 SEAT fuse |
Always |
Below 1 Ω |
|
L2 RR2 SEAT fuse |
Always |
Below 1 Ω |
|
R1 RR2 SEAT fuse |
Always |
Below 1 Ω |
|
R2 RR2 SEAT fuse |
Always |
Below 1 Ω |
|
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE) |
|
(a) Disconnect the O33 and O34 or P19 and P20 ECU connectors. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
LH Side
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O33-4 (+B) - Body ground |
Always |
11 to 14 V |
|
O33-10 (+B2) - Body ground |
Always |
11 to 14 V |
|
O34-3 (IG) - Body ground |
Ignition switch off |
Below 1 V |
|
Ignition switch ON |
11 to 14 V |
RH Side
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P19-4 (+B) - Body ground |
Always |
11 to 14 V |
|
P19-4 (+B2) - Body ground |
Always |
11 to 14 V |
|
P20-3 (IG) - Body ground |
Ignition switch off |
Below 1 V |
|
Ignition switch ON |
11 to 14 V |
|
|
3. |
CHECK HARNESS AND CONNECTOR (GROUND) |
|
(a) Disconnect the O33 or P19 ECU connector. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
LH Side
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O33-8 (GND) - Body ground |
Always |
Below 1 Ω |
|
O33-9 (GND2) - Body ground |
Always |
Below 1 Ω |
RH Side
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P19-8 (GND) - Body ground |
Always |
Below 1 Ω |
|
P19-9 (GND2) - Body ground |
Always |
Below 1 Ω |
|
|
|