Toyota Sienna Service Manual: Taillight Relay Circuit
DESCRIPTION
The Multiplex network body ECU controls TAIL relay when signal is received from headlight dimmer switch assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
- Connect the intelligent tester to DLC3.
- Turn the ignition switch ON and push the intelligent tester main switch ON.
- Select the item below in the ACTIVE TEST and then check that the relay operates.
BODY NO.1:
2 INSPECT TAIL LIGHT RELAY
- Inspect tail light relay continuity.
Resistance
3 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- Measure voltage between the terminal 1A-1 and body ground.
Resistance
4 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- Measure voltage between the each of terminals as shown in the chart below
Voltage
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
Parking Brake Switch Circuit
DESCRIPTION
The Multiplex network body ECU receives parking brake switch signal.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DL ...
Other materials:
Installation
1. INSTALL AIR FUEL RATIO SENSOR (for Bank 2
Sensor 1)
(a) Using SST, install the sensor to the exhaust
manifold LH.
SST 09224-00010
Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use
with SST
44 N*m (449 kgf*cm, 32 ft.*lbf) for use
without SST
HINT:
Use a torque wrench with a fulcrum ...
Lock Switch Circuit
DESCRIPTION
Each of the left and right seats has lock switches that detect the lock
condition of the seat legs to the floor
when the seat is in the original or folded-down state. If any of the lock
switches detect an unlock condition,
the 3rd SEAT indicator on the combination meter will come ...
Inspection
1. INSPECT BRAKE CYLINDER AND PISTON
(a) Check the brake cylinder bore and rear disc brake
piston for rust or scoring.
2. INSPECT PAD LINING THICKNESS
(a) Using a ruler, measure the pad lining thickness.
Standard thickness:
11.0mm (0.433 in.)
Minimum thickness:
1.0 mm (0.039 in.)
3. INS ...
