Toyota Tacoma (2015-2018) Service Manual: Check Mode Procedure
CHECK MODE PROCEDURE
1. DESCRIPTION
Check mode has a higher sensitivity to malfunctions and can detect malfunctions that cannot be detected in normal mode. Check mode can also detect all of the malfunctions that can be detected in normal mode. In check mode, DTCs are stored with 1 trip detection logic.
NOTICE:
- All DTCs and freeze frame data will be cleared if: 1) the Techstream is used to change the ECM from normal mode to check mode or vice versa; or 2) during check mode, the ignition switch is turned from ON to ACC or off.
- Before changing to check mode, make a note of the DTCs and freeze frame data.
2. CHECK MODE PROCEDURE
(a) Make sure that the following conditions are met:
(1) Battery voltage is 11 V or higher.
(2) The throttle valve is fully closed.
(3) The shift lever is in neutral.
(4) The A/C switch is off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Transmission / Utility / Check Mode.
(f) Check that the MIL flashes as shown in the illustration.
(g) Start the engine. The MIL should turn off after the engine starts.
(h) Simulate the conditions of the malfunction described by the customer.
(i) Using the Techstream, check for DTCs and freeze frame data.
Terminals Of Ecm
TERMINALS OF ECM
HINT:
The standard normal voltage between each pair of ECM terminals is shown in the
table below. The appropriate conditions for checking each pair of terminals are
also indic ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
NOTICE:
In the table below, the values listed under "Normal Condition" are reference
values. Do not depend solely on these reference values when dec ...
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 ...
System Description
SYSTEM DESCRIPTION
1. BRIEF DESCRIPTION
(a) The Controller Area Network (CAN) is a serial data communication system for
real time application. It is a vehicle multiplex communication system which has
a high communication speed and the ability to detect malfunctions.
(b) Using the CANH and C ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT SIDE AIRBAG SENSOR ASSEMBLY (for Vehicle not Involved in Collision)
(a) Perform a diagnostic system check (See page
).
2. INSPECT SIDE AIRBAG SENSOR ASSEMBLY (for Vehicle Involved in Collision and
Airbag has not Deployed)
(a) Perform a diagnostic s ...
