WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Entry and Start System) PROBLEM SYMPTOMS TABLE

If a normal system code is displayed during the DTC check, but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.

Tech Tips


  • The following is the troubleshooting procedure for the wireless door lock control of a vehicle with the smart entry and start system.

  • For the troubleshooting procedure for the wireless door lock control of a vehicle with the smart entry and start system, refer to the wireless door lock control system (w/ Smart Entry and Start System).

  • Inspect the fuse and relay before investigating the suspected areas shown in the table below.

  • Use the table below to help determine the cause of a problem. The likely causes of the problem are indicated in descending order. Check each suspected area in order. Repair or replace faulty parts or perform adjustments as necessary.

WIRELESS DOOR LOCK CONTROL SYSTEM:
Symptom Suspected Area See page
Only wireless control function is inoperative Door control transmitter

Click here

Transmitter battery -
Main body ECU -
Door control receiver -
Unlock warning switch

Click here

Wire harness or connector -
Answer-back function does not operate normally. Lighting system

Click here

Wire harness or connector -
Main body ECU -
Wire harness or connector -
Wireless door lock buzzer*

Click here

The automatic lock function does not operate normally Perform the operation check

Click here

Wire harness or connector -
Unlock warning switch circuit -
Door courtesy switch circuit

Click here

If the symptoms still occur after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument Panel junction block) -
The illuminated entry function only does not operate Perform the operation check

Click here

Wire harness or connector -
Lighting system

Click here

If the symptoms still occur after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument Panel junction block) -
The answer back function does not operate (Hazard warning light) Perform the operation check

Click here

Wire harness or connector -
Turn signal flasher assembly

Click here

If the symptoms still occur after the above areas have been inspected and proved to be normal, replace the main body ECU (Instrument Panel junction block) -

Tech Tips

*: for RHD