DESCRIPTION
The smart key system uses the wireless door lock buzzer to perform various vehicle exterior warnings. When the conditions for each warning are met, the certification ECU (smart key ECU assembly) sends a buzzer request signal to the main body ECU (driver side junction block assembly) via CAN communication. The wireless door lock assembly sounds the buzzer according to the signal from the main body ECU.
CAUTION / NOTICE / HINT
NOTICE:
The smart key system (for entry function) uses a multiplex communication system
(LIN communication system) and CAN communication system. Inspect the communication
function by following How to Proceed with Troubleshooting (See page
). Troubleshoot the smart key system (for entry
function) after confirming that the communication system is functioning properly.
PROCEDURE
1. |
READ VALUE USING TECHSTREAM (ANSWER-BACK BUZZER FUNCTION) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Main Body (Main Body ECU (Driver Side Junction Block Assembly))
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Wireless Buzzer Resp |
Answer-back buzzer operation / ON or OFF |
Customization status displayed |
- |
Result |
Proceed to |
---|---|
Customize setting is ON. |
A |
Customize setting is OFF. |
B |
B | ![]() |
PERFORM CUSTOMIZE SETTING (Proceed to Customize Parameters) |
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Enter the following menus: Body Electrical / Main Body / Active Test.
(b) Perform the Active Test according to the display on the Techstream.
Main Body (Main Body ECU (Driver Side Junction Block Assembly))
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Wireless Buzzer |
Turns the wireless door lock buzzer |
ON/OFF |
- |
OK:
Wireless door lock buzzer sounds.
OK | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
NG | ![]() |
GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (Proceed to No Answer-Back) |
Precaution
PRECAUTION
1. PRECAUTION FOR DISCONNECTING THE BATTERY CABLE
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following systems after the cable is reconnected:
System
See Procedure
...
Precaution
PRECAUTION
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following systems after the cable is reconnected.
System Name
See Procedure
Back Door Closer System
...
Cursor or Map Rotates when Vehicle Stopped
PROCEDURE
1.
CHECK CONDITION
(a) Check with the customer if the vehicle has been turned by a turntable.
OK:
Vehicle has not been turned by a turntable.
HINT:
If the vehicle is turned on a turntable with ...