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Home >> Toyota >> 2020 >> RAV4 XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 161 (Immobiliser System (HV, W/O Smart Key) - Diagnostic Codes & Symptom Tests) >> IMMOBILISER SYSTEM (for HV Model without Smart Key System) >> DTC B2784: Antenna Coil Open / Short [02/2019 - ] >> Description

DTC B2784: Antenna Coil Open / Short [02/2019 - ]: Description

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When an open or short circuit is detected in the antenna coil built into the transponder key coil, the transponder key ECU assembly stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B2784 Antenna Coil Open / Short The antenna coil in the transponder key coil is open/shorted.
  • Wire harness or connector
  • Transponder key coil
  • Transponder key ECU assembly
DTC Output Confirmation Operation: 
  1. Insert the door control transmitter assembly into the ignition key cylinder.
VEHICLE CONDITION AND FAIL-SAFE OPERATION WHEN MALFUNCTION DETECTED

Vehicle Condition when Malfunction Detected Fail-safe Operation when Malfunction Detected
Hybrid control system cannot be started -
RELATED DATA LIST AND ACTIVE TEST

DTC No. Data List and Active Test
B2784 Antenna Coil Status