Toyota Tacoma (2015-2018) Service Manual: Entry Interior Alarm does not Sound
DESCRIPTION
The smart key system (for Entry Function) uses the buzzer in the combination meter assembly to perform various vehicle interior warnings. When the conditions of each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer activation request signal to the combination meter assembly via CAN communication and the buzzer sounds.
CAUTION / NOTICE / HINT
NOTICE:
- The smart key system (for Entry Function) uses a multiplex communication
system (LIN communication system) and the CAN communication system. Inspect
the communication function by following How to Proceed with Troubleshooting.
Troubleshoot the smart key system (for Entry Function) after confirming
that the communication systems are functioning properly (See page
.gif)
). - Before replacing the certification ECU (smart key ECU assembly), refer
to the smart key system (for Entry Function) (See page
).
PROCEDURE
|
1. |
CHECK ENTRY DOOR LOCK OPERATION |
(a) Check that the entry functions operate normally (See page
).
OK:
Entry functions operate normally.
| OK | .gif) |
GO TO METER / GAUGE SYSTEM |
| NG | |
GO TO OTHER PROBLEM |
Driver Side Door Entry Lock Function does not Operate
DESCRIPTION
If the entry lock function does not operate for the driver door only, but the
entry unlock function operates, the request code is being transmitted properly from
the driver door. In t ...
Room Oscillator does not Recognize Key
DESCRIPTION
If code verification cannot be performed in the vehicle interior, there may be
problems with the communication between the vehicle (indoor electrical key antenna
assembly (front floor ...
Other materials:
Precaution
PRECAUTION
1. IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine ...
Terminals Of Ecu
TERMINALS OF ECU
NOTICE:
DTCs may be output when connectors are disconnected during inspection.
Therefore, be sure to clear the DTCs using the Techstream once the inspection
has been completed.
Do not apply excessive force to the f5 forward recognition camera connector.
...
Detecting Vehicle Submersion (B2277)
DESCRIPTION
This DTC is stored when a malfunction in the water submersion detection circuit
in the certification ECU (smart key ECU assembly) is detected.
HINT:
When the cable is disconnected and reconnected to the negative (-) battery terminal,
the power source mode returns to the state it w ...
