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:
Short in Side Squib RH Circuit
DTC B0110/43 Short in Side Squib RH Circuit
DESCRIPTION
The side squib RH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0110/43 is recorded when a short cir ...
Register transmitter id (using intelligent tester)
(a) Connect the intelligent tester to DLC3 (Procedure
"A").
(b) Turn the ignition switch to the ON position
(Procedure "B").
(c) Select the REGIST TIRE following the intelligent
tester screen (UTILITY - REGIST TIRE) (Procedure
"C").
(d) Input the IDs (ID1 t ...
Adjustment
1. VEHICLE PREPARATION FOR FOG LIGHT AIMING
Prepare the vehicle:
Ensure there is no damage or deformation to the
body around the fog lights.
Fill the fuel tank.
Make sure that the oil is filled to the specified
level.
Make sure that the coolant is fi ...
