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Home >> Toyota >> 2013 >> Prius Plug-in >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 129 (Lighting System (Diagnostic Codes & Circuit Tests) (Except Plug-In)) >> Lighting System >> DTC B2430: LED Headlight LH Circuit Malfunction; DTC B2431: LED Headlight RH Circuit Malfunction >> Description
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DTC B2430: LED Headlight LH Circuit Malfunction; DTC B2431: LED Headlight RH Circuit Malfunction: Description

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

These DTCs are stored when the low beam headlights do not illuminate, or a malfunction is detected in the communication between the headlight assembly and main body ECU (multiplex network body ECU).

DTC No. DTC Detection Condition Trouble Area
B2430 LED headlight LH circuit malfunction
  • Light control ECU LH
  • Headlight unit LH
  • Integration relay
  • Harness or connector
  • Main body ECU (multiplex network body ECU)
B2431 LED headlight RH circuit malfunction
  • Light control ECU RH
  • Headlight unit RH
  • Integration relay
  • Harness or connector
  • Main body ECU (multiplex network body ECU)