Toyota Sienna Service Manual: Headlight dimmer relay
ON-VEHICLE INSPECTION
1. HEADLIGHT DAY DIM LIGHT RELAY
- Inspect relay resistance.
Resistance
Daytime running light relay
ON-VEHICLE INSPECTION
1. RUNNING LIGHT RELAY
Inspect relay resistance.
Resistance
...
Taillight relay
ON-VEHICLE INSPECTION
1. TAIL LIGHT RELAY
Inspect relay resistance.
Resistance
...
Other materials:
Canceling the power back door system (vehicles with power
back door)
Turn the main switch off to disable
the power back door system.
Off
On*
*: The orange line at the top of the
switch indicates that the power
back door system is on.
Luggage compartment light
The luggage compartment light turns on
when the back door is opened with the
luggage ...
Diagnosis system
1. CHECK DLC3
The vehicle uses ISO 15765-4 communication
protocol.
The terminal arrangement of the DLC3 complies
with SAE 1962 and matched the ISO 15765-4
format.
If the result is not as specified, the DLC3 may have
a malfunction. Repair or replace the harness and
connecto ...
On-vehicle inspection
HINT:
The type of ignition switch on this model differs according to
the specifications of the vehicle. For the expressions used in
this section, refer to the "EXPRESSIONS OF IGNITION
SWITCH" precaution (See page ES-1).
1. CHECK AIR FUEL RATIO COMPENSATION SYSTEM
(a) Connect the inte ...