Toyota Sienna Service Manual: Power Source Circuit
DESCRIPTION
Power is supplied to the fold seat control ECU through the L-RR2 SEAT and R-RR2 SEAT fuses.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (L-RR2 SEAT, R-RR2 SEAT)
- Remove the fuses from the R/B No. 3.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 CHECK HARNESS AND CONNECTOR (POWER SOURCE)
- Remove the fold seat control ECU.
- Disconnect the connectors from the fold seat control ECU.
- Measure the voltage according to the value(s) in the table below.
Standard voltage: LH side
RH side
3 CHECK HARNESS AND CONNECTOR (GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance: LH side
RH side
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Indicator Circuit
DESCRIPTION
This system has two indicator lights. One of the indicator lights is built
into the fold seat switch. This
indicator light receives power from the fold seat control ECU. It comes on or ...
Fold Seat Switch Circuit
DESCRIPTION
When the fold seat switch is operated, a switch operation signal is sent to
the fold seat control ECU. The
ECU receives switch operation signals from each switch and activates the fold ...
Other materials:
On-vehicle inspection
1. INSPECT SIDE AIRBAG SENSOR (VEHICLE NOT
INVOLVED IN COLLISION)
Perform a diagnostic system check.
2. INSPECT SIDE AIRBAG SENSOR (VEHICLE
INVOLVED IN COLLISION AND AIRBAG HAS NOT
DEPLOYED)
Perform a diagnostic system check.
When the center pillar of the vehicle or its a ...
Repair
1. INSTALL HEADLIGHT PROTECTOR RETAINER UPPER
HINT:
If the installation area of the headlight assembly is
damaged, use the supply bracket for low-cost repair.
Ensure that the headlight assembly is not damaged.
Cut off the part shaded in the illustration and sand
smoo ...
Terminals of ECU
1. RADIO RECEIVER (10 SPEAKER SYSTEM)
*1: with Rear Seat Entertainment System
2. RADIO RECEIVER (6 SPEAKER SYSTEM)
*1: with Rear Seat Entertainment System
*2: without Rear Seat Entertainment System
3. STEREO COMPONENT AMPLIFIER
4. TELEVISION DISPLAY ASSEMBLY ...
