WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Entry and Start System) No Answer-Back

DESCRIPTION

In some cases, wireless door lock control functions are normal but the hazard warning light answer-back function does not operate. In such cases, the hazard warning light signals output from the main body ECU may be malfunctioning.

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   READ VALUE USING INTELLIGENT TESTER (ANSWER-BACK OPERATION)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the intelligent tester on.

   4. Enter the following menus: Body / Main Body / Utility / Customize / Wireless Door Lock.

   5. Select the setting by referring to the table below.

      Table 1. Wireless Door Lock Control System

      Display	Default	Content	Setting	Relevant ECU
      Hazard Answer Back	ON	When the doors are locked by wireless operation, the hazard warning lights flash once. When the doors are unlocked by wireless operation, the hazard warning lights flash twice	ON or OFF	Main body ECU

      Table 2. Result

      Result	Proceed to
      Both items are ON.	A
      Either item is OFF	B

   
   
   • AClick here
   • B

     PERFORM CUSTOMIZE FUNCTION (Click here)

2. Click here

   CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS

   
   

   1. Check the wireless door lock control function by the electrical key transmitter.

      Table 3. Result

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

   
   
   • AClick here
   • B

     GO TO ENTRY AND START SYSTEM (FOR ENTRY FUNCTION) (Click here)

3. Click here

   READ VALUE USING INTELLIGENT TESTER (UNLOCK DETECTION SWITCH)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the intelligent tester on.

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

   5. According to the display on the intelligent tester, read the Data List.

      Table 4. Main Body

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

      OK
      The intelligent tester should display as shown in the table according to door lock operation.

   
   
   • OKClick here
   • NG

     GO TO LIGHTING SYSTEM (Click here)

4. Click here

   CHECK HAZARD WARNING LIGHT OPERATION

   
   

   1. Check that the hazard warning lights flash continuously when the telltale light assembly (hazard warning signal switch) is pressed.

      OK
      Hazard warning lights flash continuously.

   
   
   • OK

     REPLACE MAIN BODY ECU (Click here)

   • NG

     GO TO METER / GAUGE SYSTEM (Click here)