Toyota Tacoma (2015-2018) Service Manual: Data List / Active Test
DATA LIST / ACTIVE TEST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
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 may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
DATA LIST
(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 / Central Gateway / Data List.
(e) According to the display on the Techstream, read the Data List.
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
|---|---|---|---|
|
IG2 SW |
Ignition switch ON signal (IG2 terminal) |
OFF or ON |
OFF: Ignition switch ACC or off ON: Ignition switch ON |
|
IG1 SW |
Ignition switch ON signal (IG1 terminal) |
OFF or ON |
OFF: Ignition switch ACC or off ON: Ignition switch ON |
|
ACC SW |
Ignition switch ACC signal (ACC terminal) |
OFF or ON |
OFF: Ignition switch off ON: Ignition switch ACC or ON |
|
+B Voltage |
Battery voltage (BATT terminal) |
Over 8 V or Under 8 V |
Over 8 V: Battery voltage 8 V or higher Under 8 V: Battery voltage below 8 V |
|
Number of DTC |
Number of DTCs |
0 to 255 |
0: Normal |
Dtc Combination Table
DTC COMBINATION TABLE
HOW TO INTERPRET COMMUNICATION DTCS (DTCS THAT START WITH U)
(a) If a CAN communication error cannot be reproduced, determine the suspected
malfunctioning part using the DTCs ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Central Gateway ECU (Network Gateway ECU)
DTC Code
Detection Item
See page
B1003
ECU Malfunction
...
Other materials:
Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter
DESCRIPTION
for Audio Function:
The radio and display receiver assembly receives a vehicle speed signal
from the combination meter assembly and sends the signal to radio and display
receiver assembly.
for Automatic Sound Levelizer (ASL):
This circuit is necessary fo ...
Front Speed Sensor RH Malfunction (C1401,C1402)
DESCRIPTION
The speed sensor detects wheel speed and sends the appropriate signals to the
skid control ECU (brake actuator assembly). These signals are used for brake control.
The speed sensor rotors have rows of alternating N and S magnetic poles and their
magnetic fields change when the roto ...
Theft Deterrent System Communication Line High Fixation (B279A,B279A12)
DESCRIPTION
If the communication line (EFIO-IMI) to the transponder key ECU assembly is stuck
high (e.g. shorted to +B), the ECM stores this DTC.
DTC No.
DTC Detection Condition
Trouble Area
DTC Output Confirmation Operation
B279A*1
...
