Diagnosis System [08/2019 - 08/2022]

CHECK DLC3
1. Check the DLC3.
  Refer to GENERAL INFORMATION [08/2015 - ]
INSPECT BATTERY VOLTAGE
1. Measure the battery voltage.
  Standard Voltage
  
  11 to 14 V
  
  If the voltage is below 11 V, recharge or replace the battery.

SELF-DIAGNOSTIC MODE

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Main Body / Utility / Wireless Door Lock Diagnosis Mode.
Proceed to the next step in accordance with the prompts on the Techstream screen.
Check that the system has switched to self-diagnostic mode by checking the interior light output pattern.

Fig 1: Interior Light Output Pattern
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Check that the system has switched to self-diagnostic mode by checking the wireless door lock buzzer output pattern.

Fig 2: Wireless Door Lock Buzzer Output Pattern
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the diagnostic outputs when the door control transmitter assembly switch is held down. The diagnostic outputs can be checked by the interior light and wireless door lock buzzer patterns.

Fig 3: Identifying Interior Light And Wireless Door Lock Buzzer Patterns

Interior Light Output	Suspected Area
A	Normal (No malfunction)
B	Register wireless code
C	Wave interference or malfunction of a related component