Toyota Tacoma 2015-2018 Service Manual: Entry Interior Alarm does not Sound

Toyota Tacoma 2015-2018 Service Manual / Door Lock / Smart Key System(for Entry Function) / 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 ).
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: ).

OK:

Entry functions operate normally.

GO TO METER / GAUGE SYSTEM

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:

Parts Location
PARTS LOCATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ...

Cellular Phone Registration Failure, Phone Directory Transfer Failure
PROCEDURE 1. CHECK OPERATION (a) Place the cellular phone close to the navigation receiver assembly. (b) Check if the cellular phone can be registered. OK: The cellular phone can be registered. OK NORMAL OPERATION ...

System Diagram
SYSTEM DIAGRAM 1. OVERALL CAN BUS DIAGRAM (a) The CAN communication system is composed of 4 buses. CAN Main Bus Line Terminating Resistor CAN Branch Line * Gateway Function Equipped ECU ...