Toyota Tacoma (2015-2018) Service Manual: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
The main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3).
When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3
(a) Check the DLC3 (See page .gif)
).
3. INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard voltage:
11 to 14 V
- If the voltage is below 11 V, recharge or replace the battery.
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 p ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Acces ...
Other materials:
Microphone Amplifier
Components
COMPONENTS
ILLUSTRATION
*A
w/o Sliding Roof
*B
w/ Sliding Roof
*1
TELEPHONE MICROPHONE ASSEMBLY
-
-
Removal
REMOVAL
PROCEDURE
1. REMOVE ROOF HEADLINING ASSEMBLY (for Double ...
Panel Switches do not Function
PROCEDURE
1.
CHECK PANEL SWITCH
(a) Check for foreign matter around the switches that might prevent operation.
OK:
No foreign matter is found.
NG
REMOVE ANY FOREIGN MATTER FOUND
OK
...
Stereo Component Amplifier Malfunction (B15A3)
DESCRIPTION
This DTC is stored when a malfunction occurs in the stereo component amplifier
assembly.
DTC No.
DTC Detection Condition
Trouble Area
B15A3
When one of the conditions below is met:
Internal power supply malfun ...
