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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE CHART

Terms Meaning
Physical address Three-digit code (shown in hexadecimal) which is given to each component comprising the AVC-LAN.
Corresponding to the function, individual symbols are specified.
Logical address Two-digit code (shown in hexadecimal) which is given to each function comprising the inner system of the AVC-LAN.
  1. GATEWAY ECU (Physical address: 1C4) 

    Logical address: 01 (Communication control)

    DIAGNOSIS ITEM CONDITION CHART

    DTC Diagnosis item Condition Countermeasure and inspected parts
    D4 (1) Regular Communication Error Component in which this code is recorded has been disconnected after engine start. Or, when this code was recorded, multi-display was disconnected.
    • Check harness for power supply system of multi-display assembly.
    • Check harness for communication system of multi-display assembly.
    • Check harness for power supply system of gateway ECU.
    • Check harness for communication system of gateway ECU.
    (1) When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
  2. RADIO AND PLAYER (Physical address: 190) 
    1. Logical address: 01 (Communication control)
      DIAGNOSIS ITEM CONDITION CHART

      DTC Diagnosis item Condition Countermeasure and inspected parts
      D6 (1) Absence of Master Component in which this code is recorded has been disconnected from system with ignition in ACC or ON. Or, when this code was recorded, multi-display assembly was disconnected.
      • Check harness for power supply system of multi-display.
      • Check harness for communication system of multi-display.
      • Check harness for power supply system of radio and player.
      • Check harness for communication system of radio and player.
      D8 (2) No Response to Connection Check Component shown by auxiliary code is or had been disconnected from system after engine is start.
      • Check harness for power supply system of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      D9 (1) Last Mode Error Component operated (sounds and/or images were provided) before engine stop is or has been disconnected with ignition switch in ACC or ON.
      • Check harness for power supply system of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      DA No Response to ON/OFF Instruction No response is identified when changing mode (audio and visual mode change). Detected when sound and picture does not change by button operation.
      • Check harness for power supply system of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      • If error occurs again, replace component shown by auxiliary code.
      DB (1) Mode Status Error Dual alarm is detected.
      • Check harness for power supply of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code
      DC (3) Transmission Error Transmission to component shown by auxiliary code has been failed. (Detecting this DTC does not necessarily mean actual failure.) If same auxiliary code is recorded in other component, check harness for power supply and communication system of all components shown by code.
      DD (4) Master Reset (Momentary Interruption) After engine was started, multi-display assembly was disconnected from system.
      • Check harness for power supply system of multi-display.
      • Check harness for communication system of multi-display.
      • Check harness for power supply system of radio and player.
      • Check harness for communication system of radio and player.
      • If this error occurs frequently, replace multi-display assembly.
      DE (4) Slave Reset (Momentary Interruption) After engine was started, slave component was disconnected from system.
      • Check harness for power supply of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      DF (5) Master Error Due to defective condition of component with a display, master function is switched to audio equipment. Error occurs in communication between sub-master (audio) and master component.
      • Check harness for power supply of multi-display assembly.
      • Check harness for communication system of multi-display assembly.
      • Check harness for communication system between multi-display assembly and sub-master component.
      E0 (1) Registration Completion Instruction Error "Registration Completion Instruction" command from master cannot be received. Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
      E1 (1) Audio processor ON error While source equipment is operating, AMP output is stopped.
      • Check harness for power supply of multi-display assembly.
      • Check harness for communication system of multi-display assembly.
      E2 ON/OFF Instruction Parameter Error Error occurs in ON/OFF controlling command from multi-display assembly. Replace multi-display assembly.
      E3 (1) Registration Request Transmission Registration Request command is output from slave component. Receiving Connection Check Instruction, Registration Request command is output from sub-master component. Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
      E4 (1) Multiple Frame Abort Multiple frame transmission is aborted. Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
      (1) Even if no failure is detected, this code may be stored depending on the battery condition or voltage for starting the engine.
      (2) This code is stored when 180 sec. has passed after the power supply connector is pulled out after engine start.
      (3) This code may be stored when the engine key is turned again 1 min. after engine start.
      (4) This code may be stored when the engine key is turned again after engine start.
      (5) When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
    2. Logical address: 61 (Cassette switch)
      DIAGNOSIS ITEM CONDITION CHART

      DTC Diagnosis item Condition Countermeasure and inspected parts
      40 Mechanical error of Media Malfunction due to mechanical failure is identified. Or cassette tape is cut or entangled.
      • Inspect cassette tape.
      • Replace radio and player.
    3. Logical address: 63 (In-dash CD changer)
      DIAGNOSIS ITEM CONDITION CHART

      DTC Diagnosis item Condition Countermeasure and inspected parts
      42 No Disc Readout Disc cannot be read. Inspect CD.
      44 CD Error Error is detected in CD player. Replace radio and player.
      45 EJECT Error Disc cannot be ejected. Replace radio and player.
      47 CD High Temp. High temperature is detected in CD changer. Replace radio and player.
      48 CD Excess Current Excess current is applied to CD changer. Replace radio and player.
  3. STEREO COMPONENT AMPLIFIER (Physical address: 440) 

    Logical address: 01 (Communication control)

    DIAGNOSIS ITEM CONDITION CHART

    DTC Diagnosis item Condition Countermeasure and inspected parts
    D6 (1) Absence of Master Component in which this code is recorded has been disconnected from system with ignition in ACC or ON. Or, when this code was recorded, multi-display assembly was disconnected.
    • Check harness for power supply of radio and player.
    • Check harness for communication system of radio and player.
    • Check harness for power supply of stereo component amplifier.
    • Check harness for communication system of stereo component amplifier.
    D7 Communication Check Error Component in which this code is recorded is or was disconnected from system after engine start. Or, when this code was recorded, multi-display assembly was disconnected.
    • Check harness for power supply of radio and player.
    • Check harness for communication system of radio and player.
    • Check harness for power supply of stereo component amplifier.
    • Check harness for communication system of stereo component amplifier.
    DC (2) Transmission Error Transmission to component shown by auxiliary code has been failed. (Detecting this DTC does not necessarily mean actual failure.) If same auxiliary code is recorded in other component, check harness for power supply and communication system of all components shown by code.
    DD (3) Master Reset (Momentary Interruption) After engine was started, multi-display assembly was disconnected from system.
    • Check harness for power supply of radio and player.
    • Check harness for communication system of radio and player.
    • Check harness for power supply of stereo component amplifier.
    • Check harness for communication system of stereo component amplifier.
    • If this error occurs frequently, replace multi-display assembly.
    DF (4) Master Error Due to defective condition of component with a display, master function is switched to audio equipment. Error occurs in communication between sub-master (audio) and master component.
    • Check harness for power supply of multi-display assembly.
    • Check harness for communication system of multi-display assembly.
    • Check harness for communication system between multi-display assembly and sub-master component.
    E0 (1) Registration Completion Instruction Error "Registration Completion Instruction" command from master cannot be received. Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
    E1 (1) Audio processor ON error While source equipment is operating, AMP output is stopped.
    • Check harness for power supply of multi-display assembly.
    • Check harness for communication system of multi-display assembly.
    E2 ON/OFF Instruction Parameter Error Error occurs in ON/OFF controlling command from multi-display assembly. Replace multi-display assembly.
    E3 (1) Registration Request Transmission
    • Registration Request command is output from slave component.
    • Registration Connection Check Instruction, Registration Request command is output from sub-master component.
    		 Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
    (1) Even if no failure is detected, this code may be stored depending on the battery condition or voltage for starting an engine.
    (2) This code be stored when the engine key is turned again 1 min. after engine start.
    (3) This code may be stored when the engine key is turned again after engine start.
    (4) When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
  4. STEREO COMPONENT TURNER (Physical address: 1FO) 

    Logical address: 01 (Communication control)

    DIAGNOSIS ITEM CONDITION CHART

    DTC Diagnosis item Condition Countermeasure and inspected parts
    D6 (1) Absence of Master Component in which this code is recorded has been disconnected from system with ignition in ACC or ON. Or, when this code was recorded, multi-display assembly was disconnected.
    • Check harness for power supply of stereo component tuner.
    • Check harness for communication system of stereo component tuner.
    • Check harness for power supply system of radio and player.
    • Check harness for communication system radio and player.
    D7 Communication Check Error Component in which this code is recorded is or was disconnected from system after engine start. Or, when this code was recorded, multi-display assembly was disconnected.
    • Check harness for power supply of stereo component tuner.
    • Check harness for communication system of stereo component tuner.
    • Check harness for power supply system of radio and player.
    • Check harness for communication system radio and player.
    DC (2) Transmission Error Transmission to component shown by auxiliary code has been failed.
    (Detecting this DTC does not necessarily mean actual failure.)    		 If same auxiliary code is recorded in other component, check harness for power supply and communication system of all components shown by code.
    DD (3) Master Reset (Momentary Interruption) After engine start multi-display assembly was disconnected from system.
    • Check harness for power supply system of stereo component tuner.
    • Check harness for communication system of stereo component tuner.
    • Check harness for power supply system of radio and player.
    • Check harness for communication system radio and player.
    • If this error occurs frequently, replace multi-display assembly.
    PF (4) Master Error Due to defective condition of component with a display, master function is switched to audio equipment.
    Error occurs in communication between sub-master (audio) and master component.
    • Check harness for power supply of multi-display assembly.
    • Check harness for communication system of multi-display assembly.
    • Check harness for communication system between multi-display assembly and radio and player.
    E0 (1) Registration Completion Instruction Error "Registration Completion Instruction" command from master cannot be received. Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
    E2 ON/OFF Instruction Parameter Error Error occurs in ON/OFF controlling command from radio and player. Replace radio and player.
    E3 (1) Registration Request Transmission
    • Registration Request command is output from slave component.
    • Receiving Connection Check Instruction, Registration Request command is output from sub-master component.
    		 Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
    (1) Even if no failure is detected, this code may be stored depending on the battery condition or voltage for starting an engine.
    (2) This code may be stored when the engine key is turned again 1 min. after engine start.
    (3) This code may be stored when the engine key is turned again after engine start.
    (4) When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
  5. AUDIO AND A/C CONTROL SWITCH (Physical address: 1CO) 

    Logical address: 01 (Communication control)

    DIAGNOSIS ITEM CONDITION CHART

    DTC Diagnosis item Condition Countermeasure and inspected parts
    D6 (1) Absence of Master Component in which this code is recorded has been disconnected from system with ignition in ACC or ON. Or, when this code was recorded, multi-display assembly was disconnected.
    • Check harness for power supply system of multi-display.
    • Check harness for communication system multi-display.
    • Check harness for power supply system of audio and rear A/C control switch.
    • Check harness for communication system audio and rear A/C control switch.
    D7 (2) Communication Check Error Component in which this code is recorded is or was disconnected from system after engine start. Or, when this code was recorded, multi-display assembly was disconnected.
    • Check harness for power supply system of multi-display.
    • Check harness for communication system of multi-display.
    • Check harness for power supply system of audio and rear A/C control switch.
    • Check harness for communication system audio and rear A/C control switch
    DC (2) Transmission Error Transmission to component shown by auxiliary code has been failed.
    (Detecting this DTC does not necessarily mean actual failure.)    		 If same auxiliary code is recorded in other component, check harness for power supply and communication system of all components shown by code.
    DD (3) Master Reset (Momentary Interruption) After engine start, multi-display assembly was disconnected from system.
    • Check harness for power supply system of multi-display.
    • Check harness for communication system of multi-display.
    • Check harness for power supply system of audio and rear A/C control switch.
    • Check harness for communication system of audio and rear A/C control switch
    • If this error occurs frequently, replace multi-display assembly.
    DF (4) Master Error Due to defective condition of component with a display, master function is switched to audio equipment.
    Error occurs in communication between sub-master (audio) and master component.
    • Check harness for power supply of multi-display assembly.
    • Check harness for communication system of multi-display assembly.
    • Check harness for communication system between multi-display assembly and radio and player.
    E0 (1) Registration Completion Instruction Error "Registration Completion Instruction" command from master cannot be received. Since this DTC is provided for engineering, it may be detected when no actual failure exists.
    E3 (1) Registration Request Transmission
    • Registration Request command is output from slave component.
    • Receiving Connection Check Instruction, Registration Request command is output from sub-master component.
    		 Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
    E4 (1) Multiple Frame Abort Multiple frame transmission is aborted. Since this DTC is provided for engineering purpose, it may be detected when no actual failure exists.
    (1) Even if no failure is detected, this code may be stored depending on the battery condition or voltage for starting an engine.
    (2) This code may be stored when the engine key is turned again 1. minafter engine start.
    (3) This code may be stored when the engine key is turned again after engine start.
    (4) When 210 sec. has passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
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