Toyota Tacoma (2015-2018) Service Manual: Operation Check
OPERATION CHECK
1. CHECK REMOTE CONTROL MIRROR FUNCTION
(a) Turn the ignition switch to ON.
(b) With L on the mirror select switch selected, check that the outer rear view mirror assembly LH surface moves up, down, left and right normally.
(c) With R on the mirror select switch selected, check that the outer rear view mirror assembly RH surface moves up, down, left and right normally.
2. CHECK MIRROR HEATER FUNCTION
(a) Turn the ignition switch to ON.
(b) Check that pressing the mirror heater switch illuminates the indicator and warms the mirror surfaces.
(c) Check that after approximately 15 minutes, the indicator light turns off and the mirror heater deactivates.
HINT:
There is a timer extension function which can operate the mirror heater system for up to an additional 45 minutes.
System Diagram
SYSTEM DIAGRAM
...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are lis ...
Other materials:
Four-wheel drive system
Use the front-wheel drive control switch to select the following transfer modes.
H2 (high speed position, two-wheel
drive)
Use this for normal driving on dry hard-surfaced roads.
This position gives greater economy, quietest ride and least wear.
H4 (high speed position, four-wheel
drive) ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms.
If multiple suspected areas are listed, the potential causes of the symptoms
are listed in order of probability in the "Suspected Area" column of the
table. Check each sy ...
Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to
detect with the Techstream when the ECM is in check mode. In check mode, the ECM
uses 1 trip detection logic, which is more sensitive to malfunctions than normal
mode (default) ...
