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:
Reassembly
1. INSTALL FRONT DRIVE SHAFT BEARING
(a) Using SST and a press, install a new front drive
shaft bearing.
SST 09710-30021 (09710-03141), 09527-10011
NOTICE:
Bearing should be completely installed.
2. INSTALL FRONT DRIVE SHAFT RH HOLE SNAP RING
(a) Using a snap ring expander, install a ...
Identification of noise source
1. Radio Description
Radio frequency band
Radio broadcasts use the radio frequency bands
shown in the table below
Service area
The service areas of AM and FM broadcasts are
vastly different. Sometimes an AM broadcast
can be received very clearly but an FM st ...
Power slide door control switch
INSPECTION
1. INSPECT POWER SLIDE DOOR CONTROL SWITCH
Inspect the resistance of the switch for LH / RH.
Resistance
If the result is not as specified, replace the switch.
Apply battery voltage and check the illuminates.
Standard
If the result is not as specified, replace the ...
