Toyota Tacoma (2015-2018) Service Manual: Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The power window control system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. 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.
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 ...
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 / (desired sy ...
Other materials:
Brake Switch "A" Signal Compare Failure (P057162)
DESCRIPTION
When the brake pedal is depressed, stop light switch assembly sends a signal
to the ECM. Upon receiving the signal, the ECM cancels the cruise control system.
DTC Code
DTC Detection Condition
Trouble Area
MIL
Note
...
4WD Control ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
4WD Control ECU Communication Stop Mode
Either condition is met:
Communication stop for "Four Wheel Drive Control" is indicated
on the "Communication Bus C ...
Automatic High Beam System (B124B)
DESCRIPTION
The main body ECU (multiplex network body ECU) determines the status of the automatic
high beam system based on the automatic high beam system signal from the forward
recognition camera.
DTC No.
Detection Item
DTC Detection Condition
Trou ...
