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:
Removal
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
See page EM-26
2. SECURE ENGINE (See page EM-37)
3. REMOVE GENERATOR ASSEMBLY (See page CH-17)
4. REMOVE COMPRESSOR AND MAGNETIC CLUTCH
(See page AC-227)
5. REMOVE NO. 1 ENGINE FRONT MOUNTING
BRACKET LH (See page EM-42)
6. REMOVE NO. 2 IDLER PU ...
Trailer towing tips
Your vehicle will handle differently when towing a trailer. Help to avoid
an accident, death or serious injury, keep the following in mind when
towing:
Speed limits for towing a trailer vary by state or province. Do
not
exceed the posted towing speed limit.
Toyota recommends that the ve ...
Diagnosis system
1. CHECK DLC3
(a) The vehicle's ECM uses the ISO 15765-4 for
communication. The terminal arrangement of the
DLC3 complies with SAE J1962 and matches the
ISO 15765-4 format.
HINT:
Connect the cable of the intelligent tester to the
DLC3, turn the ignition switch to the ON position
and atte ...
