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DTC B1507-18: Turn Signal Light Circuit Current Below Threshold [09/2023 - ]: Description

This DTC is stored when the combination meter assembly detects an open in a front turn signal light circuit or rear turn signal light circuit.

HINT: 

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority
B1507-18 Turn Signal Light Circuit Current Below Threshold Diagnosis Condition: 
  1. Auxiliary battery voltage is 10 V or more

Malfunction Status: 
  • Open in front turn signal light circuit
  • Open in rear turn signal light circuit
  • Headlight assembly
  • Rear combination light assembly*A
  • Harness or connector
  • Combination meter assembly
Combination Meter A
  1. *A: Refer to the following tables to identify rear combination light assembly component names.
    Component
    Rear turn signal light LED