Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Dtc Check / Clear

NOTICE:

• C1622 is output from the radio receiver assembly. Therefore, if C1622 is output, proceed to the Problem Symptoms Table for the relevant systems.

  Refer to navigation system*1

  Click here

  Refer to audio and visual system (for 8 Inch Display)*2

  Click here

  Refer to audio and visual system (for 12.3 Inch Display)*3

  Click here

• The radio receiver assembly outputs DTCs for the following system. When DTCs other than those in Diagnostic Trouble Code Chart for the parking assist monitor system are output, refer to Diagnostic Trouble Code Chart for the relevant systems.

  System	Proceed to
  Navigation System*1
  Audio and Visual System (for 8 Inch Display)*2
  Audio and Visual System (for 12.3 Inch Display)*3

• *1: w/ Navigation System
• *2: w/ Audio and Visual System (for 8 Inch Display)
• *3: w/ Audio and Visual System (for 12.3 Inch Display)

Diagnosis System

ECU Malfunction (C1611)

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