LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2022 >> RAV4 LE, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 49 (Wireless Door Lock Control System (HV, W/ Smart Key) - Diagnostic Codes & Symptom Tests) >> WIRELESS DOOR LOCK CONTROL SYSTEM (for HV Model, with Smart Key System) >> DTC B1242: Wireless Door Lock Tuner Circuit Malfunction [11/2018 - 02/2019] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
  • If the certification ECU (smart key ECU assembly) is replaced, refer to the Smart Key System (for start function).

    Refer to REGISTRATION [11/2018 - 10/2019]

  • When replacing or inspecting the door control receiver and wire harness, do not change the position or length of the wire harness. If the wire harness is too close to the door control receiver, entry and start function and wireless control function performance may be affected.
  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.
  • This DTC is not stored within 10 seconds of the power switch being turned from on (IG) to off.
  • When replacing the door control receiver, read the transmitter IDs (tire pressure warning system) stored in the old ECU using the Techstream and write them down before removal.
  • It is necessary to perform initialization after registration of the transmitter IDs into the door control receiver if the door control receiver has been replaced.