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:

Check Bus 5 Lines for Short Circuit
DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 15 (CA5H) and 16 (CA5L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Detection Item Trouble Area Resi ...

Installation
INSTALLATION PROCEDURE 1. INSTALL REAR SEATBACK CENTER HINGE SUB-ASSEMBLY (a) Install the rear seatback center hinge sub-assembly with the 2 bolts. Torque: 30 N·m {306 kgf·cm, 22 ft·lbf} 2. INSTALL LUGGAGE COMPARTMENT SIDE TRAY 3. INSTALL REAR SEATBACK HINGE SUB-ASSEMBLY (a) Install ...

Camera Heater
Components COMPONENTS ILLUSTRATION *1 FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY - - Removal REMOVAL PROCEDURE 1. REMOVE FORWARD RECOGNITION CAMERA Click here 2. REMOVE FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY NOT ...