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Home >> Lexus >> 2015 >> IS 250 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes (1 Of 2) >> Meter / Gauge System >> DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [09/2020 - ] >> Description

DTC B1508: Short in Turn Signal / Hazard Flasher Circuit [09/2020 - ]: Description

This DTC is stored when the combination meter assembly detects a 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 in that circuit will not blink.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory
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
  • Headlight assembly
    • Headlight ECU sub-assembly
    • Headlight unit assembly
    • Headlight cord*1
    • Front turn signal light bulb*1
  • Outer mirror control ECU assembly*2
  • Outer rear view mirror assembly
    • Outer mirror actuator assembly
    • Side turn signal light assembly
  • Rear combination light assembly
    • Rear combination light lens and body
    • Rear turn signal light bulb
  • Windshield wiper switch assembly
  • Hazard warning signal switch (Air conditioning control assembly)
  • Harness or connector
  • Combination meter assembly
DTC stored
  1. *1: for Bulb Type Turn Signal Light
  2. *2: w/ Seat Position Memory