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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 B2796: No Communication in Immobiliser System; DTC B2798: Communication Malfunction No. 2 [02/2019 - ] >> Description

DTC B2796: No Communication in Immobiliser System; DTC B2798: Communication Malfunction No. 2 [02/2019 - ]: Description

WARNING: This page is about a different variant/trim than selected.

This DTC is stored when a door control transmitter assembly is inserted into the ignition key cylinder but no communication occurs between the door control transmitter assembly and transponder key ECU assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B2796 No Communication in Immobiliser System The key ID code cannot be transmitted to the transponder key ECU assembly (1 trip detection logic*).
  • Wire harness or connector
  • Door control transmitter assembly
DTC Output Confirmation Operation: 
  1. Insert the door control transmitter assembly into the ignition key cylinder.
B2798 Communication Malfunction No. 2 Key ID code identification cannot be completed within the specified time (1 trip detection logic*).
  • Wire harness or connector
  • Door control transmitter assembly
DTC Output Confirmation Operation: 
  1. Insert the door control transmitter assembly into the ignition key cylinder.
  1. *: Only output while a malfunction is present.
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
B2796 -
B2798 -