Toyota Sienna Service Manual: Fold Lock Switch Circuit
DESCRIPTION
Each of the left and right seats has a fold lock switch that detects the lock condition of the seat legs and floor when the seat is in the stowed state. If the fold lock switch detects an unlock condition, the 3rd SEAT indicator on the combination meter will come on.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FOLD SEAT CONTROL ECU
- Remove the fold seat control ECU with connectors still connected.
- 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 - FOLD LOCK SWITCH)
- Disconnect the connectors from the fold seat control ECU.
- Disconnect the connector from the fold lock switch.
- Measure the resistance according to the value(s) in the table below.
Standard resistance LH side
RH side
3 CHECK HARNESS AND CONNECTOR (FOLD LOCK SWITCH - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance LH side
RH side
4 INSPECT FOLD LOCK SWITCH
- Measure the resistance according to the value(s) in the table below.
Standard resistance LH side
RH side
REPLACE FOLD SEAT CONTROL ECU
Rear Power Seat Switch Circuit
DESCRIPTION
When the power rear no. 2 seat switch is operated, a recline signal is sent
to the fold seat control ECU.
The ECU activates the reclining motor based on the signal from the power rea ...
Seat memory switch
COMPONENTS
...
Other materials:
Crankshaft Position Sensor
DESCRIPTION
The Crankshaft Position (CKP) sensor system consists of a CKP sensor plate
and a pickup coil. The
sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is
made of an iron core and a
magnet.
The sensor plate rotates as each tooth passes through the pi ...
Pressing Power Switch does not Turn on System
INSPECTION PROCEDURE
1 CHECK CABIN
Check that conditions in the cabin are not likely to cause
condensation.
HINT:
This problem occurs when the cabin is humid and the
temperature rapidly changes. This condition may
produce condensation, resulting in a short circuit.
OK:
Condensation ...
Back Door ECU Communication Stop
DTC B1287 Back Door ECU Communication Stop
DESCRIPTION
DTC B1287 is output when communication between the power back door ECU and
the multiplex network
gateway ECU stops for more than 10 seconds.
DTC No.
DTC Detection Condition
Trouble Area
B1287
Back d ...
