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Home >> Lexus >> 2018 >> GS 450h Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System (Diagnostic Codes & Symptom Tests) >> Meter / Gauge System >> DTC B1507: Open in Turn Signal Circuit; DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [10/2015 - ] >> Description

DTC B1507: Open in Turn Signal Circuit; DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [10/2015 - ]: Description

These DTCs are stored when the combination meter assembly detects an open in a turn signal light circuit, or a short in a turn signal light circuit or the hazard warning light circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1507 Open in Turn Signal Circuit When IG voltage is 9.5 V or more and the following condition is detected:
  • Open in turn signal light circuit
  • LED*1
  • Bulb*2
  • Harness or connector
  • Outer mirror control ECU assembly
  • Headlight ECU assembly
  • Headlight unit
  • Combination meter assembly
B1508 Short in Turn Signal / Hazard Flasher Circuit When IG voltage is 9.5 V or more and the following condition is detected:
  • Short in turn signal light circuit or hazard warning light circuit

() *1: for Triple Beam Headlight*2: for Single Beam Headlight