Entry And Start System (For Entry Function) Entry Exterior Alarm And Answer-Back Buzzer Do Not Sound

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CUSTOMIZE SETTING (WIRELESS BUZZER RESP)

CHECK WIRELESS DOOR LOCK CONTROL SYSTEM

READ VALUE USING GTS (EACH UNLOCK DETECTION SWITCH)

PERFORM ACTIVE TEST USING GTS (WIRELESS BUZZER)

CHECK WIRELESS DOOR LOCK BUZZER

CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] AND BODY GROUND)

CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - COWL SIDE JUNCTION BLOCK LH)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. The entry and start system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly (Click here).
   
2. When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
   
3. Before replacing the certification ECU (smart key ECU assembly) or main body ECU (multiplex network body ECU), refer to entry and start system (for Entry Function) (Click here).
   
4. After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
   

1. Connect the GTS to the DLC3.
   

2. Turn the engine switch on (IG).
   

3. Turn the GTS on.
   

4. Enter the following menus: Customize Setting / Wireless Door Lock.
   
   

   Wireless Door Lock

   Display	Default	Content	Setting	Relevant ECU
   Wireless Buzzer Resp	ON	Wireless buzzer response*	OFF or ON	Main body ECU (Multiplex network body ECU)

   1. *: w/ Wireless Door Lock Buzzer Answer-back Function
      

   Result

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

1. Check that the wireless door lock functions operate normally (Click here).
   

   Result

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

1. Connect the GTS to the DLC3.
   

2. Turn the engine switch on (IG).
   

3. Turn the GTS on.
   

4. Enter the following menus: Body Electrical / Main Body / Data List.
   

5. Read the Data List according to the display on the GTS.
   
   

   Entry&Start

   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 / ON or OFF	ON: Rear door RH unlocked OFF: Rear door RH locked	-
   RL-Door Lock Pos SW	Rear door LH unlock detection switch signal / ON or OFF	ON: Rear door LH unlocked OFF: Rear door LH locked	-

   OK:

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

1. Connect the GTS to the DLC3.
   

2. Turn the engine switch on (IG).
   

3. Turn the GTS on.
   

4. Enter the following menus: Body Electrical / Main Body / Active Test.
   

5. Perform Active Test according to the display on the GTS.
   
   

   Main Body

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

   Result

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

1. Disconnect the A84 wireless door lock buzzer connector.
   

2. Perform the Active Test using the GTS and sound the wireless door lock buzzer.
   
   

   Main Body

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

3. While performing the Active Test, measure the voltage between the terminals of the wireless door lock buzzer.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   A84-1 (B) - A84-2 (E)	Active Test Wireless Buzzer ON	Pulse generation (frequency: 2 kHz, high voltage: 11 to 14 V, low voltage: below 1 V)
   	Active Test Wireless Buzzer OFF	Below 1 V

   Text in Illustration

   *a	Front view of wire harness connector (to Wireless Door Lock Buzzer)

1. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH.
   

   1. for LHD: Click here
      
   2. for RHD: Click here
      

2. Disconnect the A84 wireless door lock buzzer connector.
   

3. Reconnect the 2H cowl side junction block LH connector.
   

4. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   A84-1 (B) - A-21 (BZR)	Always	Below 1 Ω
   A84-2 (E) - Body ground	Always	Below 1 Ω
   A84-1 (B) or A-21 (BZR) - Body ground	Always	10 kΩ or higher

   Result

   Result	Proceed to
   OK (for LHD)	A
   OK (for RHD)	B
   NG	C

1. Disconnect the 2H cowl side junction block LH connector.
   

2. Disconnect the A84 wireless door lock buzzer connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   A84-1 (B) - 2H-29 (BZR)	Always	Below 1 Ω
   A84-1 (B) or 2H-29 (BZR) - Body ground	Always	10 kΩ or higher

   Result

   Result	Proceed to
   OK (for LHD)	A
   OK (for RHD)	B
   NG	C