Toyota Tacoma (2015-2018) Service Manual: Check Mode Procedure
CHECK MODE PROCEDURE
1. DESCRIPTION
(a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are detected with 1 trip detection logic.
2. CHECK MODE PROCEDURE
(a) Make sure that the following conditions are met:
(1) Battery positive voltage 11 V or higher.
(2) Throttle valve fully closed.
(3) Shift lever in P or N.
(4) Air conditioning off.
(b) Turn the ignition switch off.
(c) Connect the Techstream to the DLC3.
(d) Turn the ignition switch to ON.
(e) Turn the Techstream on.
(f) Enter the following menus: Powertrain / Transmission / Utility / Check Mode.
(g) Change the ECM to check mode. Make sure the MIL flashes as shown in the illustration.
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 entering check mode, make notes of the DTCs and freeze frame data.
(h) Start the engine. The MIL should turn off after the engine starts.
(i) Perform Monitor Drive Pattern for the ECT test (See page
.gif)
).
(Or, simulate the conditions of the malfunction described by the customer.)
(j) After simulating the malfunction conditions, use the Techstream to check the DTC and freeze frame data.
Terminals Of Ecm
TERMINALS OF ECM
1. ECM
HINT:
The standard voltage between each pair of ECM terminals is shown in the table
below. In the table, first follow the information under "Condition". Look u ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) When troubleshooting OBD II (On-Board Diagnostics) vehicles, an OBD II scan
tool (complying with SAE J1978) must be connected to the DLC3 (Data Link Connector
...
Other materials:
Transponder Chip Malfunction (B2793,B2794,B2797,B2798)
DESCRIPTION
DTC B2793 is stored when a malfunction is found in the key during key
code registration or a key code is not registered normally. Replace the
key if key code registration cannot be performed normally and this DTC is
output.
DTC B2794 is stored when a key with an i ...
No Sound can be Heard from Speakers
PROCEDURE
1.
CHECK AUDIO SETTINGS
(a) In sound output setting mode, set volume, fader and balance to the initial
values and check that the sound is normal.
OK:
Audio system returns to normal.
HINT:
Sound quality adjustment measures vary according to the type ...
Adjustment
ADJUSTMENT
CAUTION / NOTICE / HINT
HINT:
Use the same procedures for both the LH and RH sides.
The procedure described below is for the LH side.
Centering bolts are used to mount the door hinge to the vehicle body
and door. The door cannot be adjusted with the centering bolts ...
