Entry Exterior Alarm and Answer-back Buzzer do not Sound [10/2018 - 07/2022]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Customize Setting / Wireless Door Lock.

   Wireless Door Lock 

   Tester Display	Description	Default	Setting	ECU
   Wireless Buzzer Resp	Wireless buzzer response	ON	0:OFF, 1:ON	Main body ECU (multiplex network body ECU)

   Result

   Result	Proceed to
   "ON" is displayed	A
   "OFF" is displayed	B

Result: 

B 

PERFORM CUSTOMIZE SETTING. Refer to  CUSTOMIZE PARAMETERS [10/2018 - 07/2022] 

Result: 

A 

See step  2

1. Check that the function operates normally.

   Refer to OPERATION CHECK [10/2018 - 07/2022]

   Result

   Result	Proceed to
   Wireless door lock function operates normally	A
   Wireless door lock function does not operate normally	B

Result: 

B 

GO TO PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2018 - 08/2021]  , or refer to  PROBLEM SYMPTOMS TABLE [08/2021 - 07/2022] 

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Data List.
5. Read the Data List according to the display on the Techstream.

   Body Electrical > Main Body > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   FR Door Lock Pos	Front door RH unlock detection switch signal	UNLOCK or LOCK	UNLOCK: Front door RH unlocked LOCK: Front door RH locked	-
   FL Door Lock Pos	Front door LH unlock detection switch signal	UNLOCK or LOCK	UNLOCK: Front door LH unlocked LOCK: Front door LH locked	-
   RR-Door Lock Pos SW	Rear door RH unlock detection switch signal	OFF or ON	OFF: Rear door RH locked ON: Rear door RH unlocked	-
   RL-Door Lock Pos SW	Rear door LH unlock detection switch signal	OFF or ON	OFF: Rear door LH locked ON: Rear door LH unlocked	-

   Body Electrical > Main Body > Data List 

   Tester Display
   FR Door Lock Pos
   FL Door Lock Pos
   RR-Door Lock Pos SW
   RL-Door Lock Pos SW

   OK

   The Techstream display changes correctly in response to the lock/unlock operation.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit). Refer to  Door Unlock Detection Switch Circuit [10/2018 - 07/2022] 

Result: 

OK 

See 8step  4

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Active Test.
5. Perform Active Test according to the display on the Techstream.

   Body Electrical > Main Body > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Wireless Buzzer	Wireless door lock buzzer	OFF/ON	-

   Body Electrical > Main Body > Active Test 

   Tester Display
   Wireless Buzzer

   Result

   Result	Proceed to
   Wireless door lock buzzer does not sound	A
   Wireless door lock buzzer sounds	B

Result: 

A 

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (NO ANSWER-BACK). Refer to  No Answer-Back [10/2018 - 07/2022] 

Result: 

B 

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [10/2018 - 07/2022]