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Home >> Lexus >> 2019 >> IS 350 Base, RWD >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes (1 Of 2) >> Pre-Collision System >> DTC C1A4B: Stop Light Relay Circuit [04/2013 - 08/2015] >> Caution / Notice / Hint
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Caution / Notice / Hint

NOTE:
  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • When this DTC is output, a malfunction in the lighting system is suspected. Check if the lighting system is functioning normally.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - 10/2016]

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