No Answer-Back (Hazard Warning Light and Wireless Door Lock Buzzer)
DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: No Answer-Back (Hazard Warning Light and Wireless Door Lock Buzzer)
- No Answer-Back (Hazard Warning Light and Wireless Door Lock Buzzer)
DESCRIPTION
If there is no answer-back of the hazard light signal and the wireless door lock buzzer although the wireless control function is operating normally, there might be a malfunction in the hazard light signal and the wireless door lock buzzer signal which are output from the main body ECU RH (cowl side junction block RH).
NOTICE:
Troubleshooting should be started after confirming that the wireless buzzer and hazard answer back function has been switched ON through customization.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM
(a) Check whether the wireless door lock functions by operating the transmitter switch Operation Check.
HINT
When the wireless door LOCK/UNLOCK operation can be performed, it means that the wireless signal from the transmitter is properly input to the main body ECU RH (cowl side junction block RH).
Result
B -- GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START All Door Entry Lock/Unlock Functions And Wireless Functions Do Not Operate
A -- Continue to next step.
2. READ VALUE USING TECHSTREAM
(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 / Body or Master Switch / Data List.
(e) Read the Data List according to the display on the Techstream.
Body (Main Body ECU RH (Cowl Side Junction Block RH))
Master Switch (Multiplex Network Master Switch Assembly)
OK:
On the Techstream screen, ON or OFF will be displayed accordingly.
Result:
E -- GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
D -- GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
C -- GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
B -- GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table) Problem Symptoms Table
A -- Continue to next step.
3. PERFORM ACTIVE TEST USING TECHSTREAM
(a) Enter the following menus: Body Electrical / Body / Active Test.
(b) Perform the Active Test according to the display on the Techstream.
Body (Main Body ECU RH (Cowl Side Junction Block RH))
Result
C -- REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH)
B -- INSPECT WIRELESS DOOR LOCK BUZZER
A -- Continue to next step.
4. CHECK HAZARD WARNING LIGHTS
(a) Check that the hazard warning lights flash when the hazard warning signal switch is pressed.
OK:
Hazard warning lights flash continuously.
NG -- GO TO LIGHTING SYSTEM Exterior Lighting System
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (TURN SIGNAL FLASHER - MAIN BODY ECU RH)
(a) Disconnect the J30 turn signal flasher connector and J74 Main Body ECU RH connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH)
6. INSPECT WIRELESS DOOR LOCK BUZZER
(a) Check the buzzer resistance.
(1) Disconnect the A18 buzzer connector.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NOTICE:
When battery voltage is directly applied to the buzzer, the buzzer does not sound.
NG -- REPLACE WIRELESS DOOR LOCK BUZZER Removal
OK -- Continue to next step.
7. CHECK HARNESS AND CONNECTOR (WIRELESS DOOR LOCK BUZZER - MAIN BODY ECU RH)
(a) Disconnect the A18 buzzer connector and A36 ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH)