Toyota Sienna Service Manual: Headlight dimmer switch
COMPONENTS
REMOVAL
1. REMOVE STEERING COLUMN LOWER COVER
2. REMOVE STEERING COLUMN UPPER COVER
3. REMOVE HEADLIGHT DIMMER SWITCH ASSEMBLY
- Disconnect the connector.
- Release the claw fitting and remove the headlight dimmer switch assembly.
INSPECTION
1. HEADLIGHT DIMMER SWITCH ASSEMBLY
- Inspect light control switch resistance.
- Check that there is resistance between the terminals at each switch position as shown in the chart.
Resistance
- Inspect light control switch resistance.
- Check that there is resistance between the terminals at each switch position as shown in the chart.
Resistance
- Inspect light control switch resistance.
- Check that there is resistance between the terminals at each switch position as shown in the chart.
Resistance
- Inspect light control switch resistance.
- Check that there is resistance between the terminals at each switch position as shown in the chart.
Resistance
INSTALLATION
1. INSTALL HEADLIGHT DIMMER SWITCH ASSEMBLY
2. INSTALL STEERING COLUMN UPPER COVER
3. INSTALL STEERING COLUMN LOWER COVER
Vanity light
ON-VEHICLE INSPECTION
1. LH VISOR ASSEMBLY
Inspect vanity light resistance.
check that the resistance exists between the
terminal 1 and the terminal 2 when the light is
oper ...
Turn signal light switch
ON-VEHICLE INSPECTION
1. INSPECT TURN SIGNAL FLASHER CIRCUIT
Measure voltage between the terminals as shown in
the chart below.
Voltage
Connect the connector to turn the si ...
Other materials:
Blower Motor Circuit
DESCRIPTION
The blower motor is operated by signals from the A/C amplifier. Blower motor
speed signals are
transmitted by changes in the Duty Ratio.
Duty Ratio
The duty ratio is the ratio of the period of continuity in one cycle. For
example, if A is the period of
continuity in one cycl ...
In the vicinity of the steering wheel
Safety switch
Power windows
Exterior mirror operation
Central locking system
Unlocking
Locking
Seating comfort features
Memory function
Lights
Front fog lights
Light switch
Lights off
Daytime running lights
Parking lights
Automatic headlight control
Adaptive light functions ...
Engine Control System Malfunction
DTC C1201/51 Engine Control System Malfunction
DESCRIPTION
If trouble occurs the engine control system, the ECM transmits the
abnormality to the skid control ECU.
The skid control ECU set this DTC and the skid control ECU prohibits TRAC and
VSC control.
INSPECTION PROCEDURE
1 CHECK ENGIN ...
