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Home >> Toyota >> 2004 >> Matrix Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 599 (Engine Immobilizer System - Diagnosis) >> Diagnostic Trouble Code Chart

Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE INDEX

DTC No. Detection Item Trouble Area
B2780  Key Unlock Warning Switch Malfunction
  • Key unlock warning switch
B2793  Transponder Chip Malfunction
  • Key
B2794  Unmatched Encryption Code
  • Key
  • Transponder key amplifier
B2795  Unmatched key code
  • Key
  • Unregistered key inserted before
B2796  No communication in immobiliser system
  • Key
  • Transponder key amplifier (w/Coil)
  • Wire harness
  • Transponder key ECU
B2797  Communication malfunction No. 1
  • Key
  • Wire harness
  • Transponder key amplifier (w/Coil)
  • Transponder key ECU
B2798  Communication malfunction No. 2
  • Key
  • Transponder key amplifier (w/Coil)
  • Wire harness
  • Transponder key ECU
B2799  Engine immobiliser system
  • Wire harness
  • Transponder key ECU
  • ECM
Fig 1: Engine Immobiliser System DTC Notification Diagram
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