Toyota Sienna Service Manual: Folding Motor Circuit
DESCRIPTION
The fold seat control ECU receives a switch operation signal from the fold seat switch and activates the folding motor. At this time, the Hall IC (seat cushion position sensor) detects the actuation signal. The fold seat control ECU uses signals from the Hall IC (seat cushion position sensor) to detect if an object if an object is caught or if any other abnormal condition has occurred.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FOLD SEAT CONTROL ECU
- Remove the fold seat control ECU.
- Measure the voltage according to the value(s) in the table below.
Standard voltage: LH side
RH side
2 CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - FOLDING MOTOR)
- Disconnect the connector from the fold seat control ECU.
- Disconnect the connector from the fold seat motor.
- 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
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 ...
Reclining Motor Circuit
DESCRIPTION
The fold seat control ECU receives a switch operation signal from the power
rear no. 2 seat switch and
the fold seat switch, and activates the reclining motor. At this time, the Hall
...
Other materials:
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 ...
Eject Error/ Elevator Error/ Clamp Error
DTC 44-45 Eject Error
DTC 44-51 Elevator Error
DTC 44-52 Clamp Error
DESCRIPTION
DTC No.
DTC Detecting Condition
Trouble Area
44-45
Disc cannot be ejected.
Television display assembly
44-51
Mechanical error occurs during elevator operation.
...
Fail-safe chart
1. AUTO CANCEL FUNCTION (FAIL-SAFE FUNCTION):
HINT:
If a system malfunction occurs, the applicable DTCs will
appear on the multi-information display. In some cases,
a DTC will be set due to weather or vehicle operating
conditions, this does not indicate a system malfunction.
E3 (i ...
