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Home >> Lexus >> 2017 >> RC 350 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes & Symptom Tests (1 Of 2) >> Meter / Gauge System >> DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [11/2017 - 10/2018] >> Description

DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [11/2017 - 10/2018]: Description

This DTC is stored when the combination meter assembly detects an short in a turn signal light circuit.

HINT: 

If there is a short in a turn signal light circuit, all of the turn signal lights on the side with the short circuit will not blink.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
B1508 Short in Turn Signal / Hazard Flasher Circuit Diagnosis Condition: 
  1. Battery voltage is 7 V or more

Malfunction Status: 

  1. Short in turn signal light circuit
  • Clearance light assembly*1
  • Headlight cord*2
  • Front turn signal light bulb*2
  • Outer mirror control ECU assembly*3
  • Side turn signal light assembly
  • Outer mirror actuator assembly
  • Air conditioning control assembly
  • Headlight control ECU sub-assembly*1
  • Windshield wiper switch assembly
  • Rear turn signal light bulb
  • Rear combination light socket and wire sub-assembly
  • Harness or connector
  • Combination meter assembly
DTC stored -
  1. *1: for Triple Beam Headlight
  2. *2: for Single Beam Headlight
  3. *3: w/ Seat Position Memory System