Toyota Sienna Service Manual: Front Fog Light Circuit
DESCRIPTION
The Multiplex network body ECU controls FOG 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.
2 INSPECT FOG LIGHT RELAY
- Inspect fog light relay continuity.
Standard
3 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- Measure voltage between the terminal B8-7 of the multiplex network body ECU in the instrument panel junction block assembly and body ground.
Voltage
4 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- Remove the instrument panel junction block assembly.
- Measure voltage between each of the terminals as shown in the chart below.
Voltage
REPAIR OR REPLACE HARNESS OR CONNECTOR
DRL Relay Circuit
DESCRIPTION
The Multiplex network body ECU controls the DRL No.2 relay
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
Connect the intelligent tester to DLC ...
Light Control Switch Circuit
DESCRIPTION
This circuit detects the state of the headlight dimmer switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Connect the intelligent tester to DLC3.
...
Other materials:
Automatic door locking and unlocking systems
The following functions can be set or cancelled: For instructions on
customizing, refer to
Function
Operation
Shift position linked door
locking function
Shifting the shift lever out of P locks all the
doors
Shift position linked door
unlocking function
...
Side Airbag Sensor Assembly LH Circuit Malfunction
DTC B1141/33 Side Airbag Sensor Assembly LH Circuit Malfunction
DESCRIPTION
The side airbag sensor LH circuit consists of the center airbag sensor
assembly and side airbag sensor
LH.
If the center airbag sensor assembly receives signals from the side airbag
sensor LH, it judges whether or
...
On-vehicle inspection
1. INSPECT CURTAIN SHIELD AIRBAG ASSEMBLY
(VEHICLE NOT INVOLVED IN COLLISION)
Perform a diagnostic system check.
With the curtain shield airbag assembly installed on
the vehicle, perform a visual check. If there are any
defects as mentioned below, replace the front pillar
...
