Toyota Tacoma (2015-2018) Service Manual: High Beam Main Switch
Headlight Relay
Inspection
INSPECTION
PROCEDURE
1. INSPECT HEADLIGHT RELAY
(a) Check the resistance.
(1) Using an ohmmeter, measure the resistance between the terminals.
Standard:
Tester Connec ...
Components
COMPONENTS
ILLUSTRATION
*A
for Double Cab
*B
for Access Cab
*1
AUTO HIGH BEAM SWITCH
*2
COWL SIDE TRIM ...
Other materials:
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT WHEEL
2. DRAIN DIFFERENTIAL OIL
3. SEPARATE FRONT SPEED SENSOR
(a) Remove the bolt and separate the front speed sensor.
(b) Disengage the 2 clamps.
(c) Remove the bolt and separate the speed sensor wire harness from the steering
knuckle.
4. SEPARATE TIE ...
Headlight Dimmer Switch Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) receives the following switch
information:
Light control switch position is off (DRL OFF), tail, head or AUTO (DRL).
Dimmer switch position is high, low or high flash (pass).
Front fog light switch position is on or off ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals ...
