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Home >> Lexus >> 2022 >> RC F Fuji Speedway Edition >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes (1 Of 2) >> Meter / Gauge System >> DTC B1507: Open in Turn Signal Circuit; DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [09/2014 - 11/2017] >> Description

DTC B1507: Open in Turn Signal Circuit; DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [09/2014 - 11/2017]: 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 Memory Note
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
  • Bulb
  • Harness or connector
  • Instrument panel junction block assembly
  • Outer mirror control ECU assembly LH*
  • Outer mirror control ECU assembly RH*
  • Combination meter assembly
DTC stored -
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
  • LED
  • Bulb
  • Harness or connector
  • Instrument panel junction block assembly
  • Outer mirror control ECU assembly LH*
  • Outer mirror control ECU assembly RH*
  • Combination meter assembly
DTC stored -
  1. *: w/ Seat Position Memory