LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2021 >> Mirai Limited >> Repair and Diagnosis >> Electrical >> Gauges >> Meter / Gauge System - Diagnostic Codes (2 Of 3) >> Meter / Gauge System >> DTC B1508-19: Turn Signal/Hazard Flasher Circuit Current Above Threshold [11/2020 - 11/2021] >> Description

DTC B1508-19: Turn Signal/Hazard Flasher Circuit Current Above Threshold [11/2020 - 11/2021]: Description

When the operation signal of the turn signal switch (headlight dimmer switch assembly) is input, the combination meter assembly operates the turn signal lights on the RH and LH sides in response to switch operation. If there is a short in the turn signal light circuit, the combination meter assembly outputs B1508-19.

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 DTC Output from Priority Note
B1508-19 Turn Signal/Hazard Flasher Circuit Current Above Threshold Diagnosis Condition: 
  1. Auxiliary battery voltage is 7 V or more

Malfunction Status: 
  1. Short in turn signal light circuit
  • Front turn signal light assembly (w/ Advanced Park)
  • Front turn signal light LED (w/o Advanced Park)
  • Front multiplex network door ECU (w/ Reverse Shift-linked Mirror)
  • Outer mirror retractor
  • Side turn signal light assembly
  • Rear combination light cord
  • Rear turn signal light LED
DTC stored Combination Meter A -