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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2004 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE

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. PHYSICAL ADDRESS: 110 MULTI DISPLAY (EMV) 
    1. Logical address: 01 (Communication control)
      DIAGNOSTIC TROUBLE CODE - PHYSICAL ADDRESS: 110 MULTI DISPLAY (EMV) LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL)

      DTC Diagnosis item diagnosis content Countermeasure and inspected parts
      21 ROM Error Abnormal condition of ROM is detected. Replace multi-display assembly.
      22 RAM Error Abnormal condition of RAM is detected. Replace multi-display assembly.
      D5 *1 Registered component disconnected Component shown by auxiliary code is or was disconnected from system with ignition switch in ACC or ON.
      Communication with component shown by auxiliary code is not ensured when engine is started.
      • Check harness for power supply of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      D8 *2 No response to connection check Component shown by auxiliary code is or was disconnected from system after engine is started.
      • Check harness for power supply of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      D9 *1 Last Mode Error Component operated (sound and/or image was provided) before engine stop is or was disconnected with ignition switch in ACC or ON.
      • Check harness for power supply of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      DB *1 Mode Status Error Dual alarm is detected.
      • Check harness for power supply system of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      DC *4 Transmission Error Transmission to component shown by auxiliary code has been failed. (This code does not always indicate actual failure.) If same auxiliary code is recorded in order component(s), check harness for power supply and communication system of all components shown by code.
      DE *3 Slave Reset (Momentary Interruption) After the engine start, slave component has been disconnected.
      • Check harness for power supply system of component shown by auxiliary code.
      • Check harness for communication system of component shown by auxiliary code.
      E2 ON/OFF Instruction Parameter Error Error is detected in ON/OFF control command from multi-display assembly. Replace multi-display assembly.
      E3 *1 Registration Request Transmission
      • Registration Request command is output from slave component.
      • By reception of connection check instruction, Registration Request command is output from sub-master component.
      		 Since this DTC is provided for engineering, it may be detected when no actual failure exists.
      HINT:
      *1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
      *2: It is stored when 180 sec. have passed after the power supply connector is pulled out after the engine start.
      *3: It may be stored when the engine key is turned again after the engine start.
      *4: It may be stored when the engine key is turned 1 min. again after the engine start.
    2. Logical address: 21 (Switch)
      DIAGNOSTIC TROUBLE CODE PHYSICAL ADDRESS: 110 MULTI DISPLAY (EMV) LOGICAL ADDRESS: 21 (SWITCH)

      DTC Diagnosis item diagnosis content Countermeasure and inspected parts
      10 Panel Switch Error Error in panel switch input part is detected. (Error in switch control part, or internal communication error with switch control part is detected.)
      • Inspect all switches on panel switch test screen in display check mode. If any of them do not function, replace multi-display assembly.
      • If all switches function without problem, observe them for a while.
      11 Touch Switch Error Error in touch switch sensor is detected. (Light level of LED is detected to be less than a fixed value.)
      • Inspect all touch switches on touch switch test screen in display check mode. If any of lines does not react, replace multi-display assembly.
      • If all of vertical and horizontal lines react normally, observe them for a while.
    3. Logical address: 34 (Front passenger monitor)
    DIAGNOSTIC TROUBLE CODE PHYSICAL ADDRESS: 110 MULTI DISPLAY (EMV) LOGICAL ADDRESS: 34 (FRONT PASSENGER MONITOR)

    DTC Diagnosis item diagnosis content Countermeasure and inspected parts
    10 Error in Picture Circuit Error in power supply system for picture circuit (abnormal voltage) is detected. Replace multi-display assembly.
    11 Back-light Error (No current) Decline in power output from inverter circuit for back-light. Replace multi-display assembly.
    12 Back-light Error (Excess current) Excess power output from inverter circuit for back-light. Replace multi-display assembly.
  2. PHYSICAL ADDRESS: 1C6 GATEWAY ECU (G/W-ECU) 

    Logical address: 01 (Communication control)

    DIAGNOSTIC TROUBLE CODE PHYSICAL ADDRESS: 1C6 GATEWAY ECU (G/W-ECU) - LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL)

    DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
    D4 *1 Regular Communication Error Component in which this code is recorded has been disconnected after the 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.
    HINT:
    *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.
  3. PHYSICAL ADDRESS: 190 RADIO RECEIVER (AUDIO H/U) 
    1. Logical address: 01 (Communication control)
      PHYSICAL ADDRESS: 190 RADIO RECEIVER (AUDIO H/U) LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC TROUBLE CODE

      DTC Diagnosis item Diagnosis content 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 receiver.
      • Check harness for communication system of radio receiver.
      D8 *2 No Response to Connection Check Component shown by auxiliary code is or had been disconnected from system after engine is start.
      D9
      • 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). Detect when sound and picture do 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 always indicate actual failure.) If same auxiliary code is recorded in order component, check harness for power supply and communication system of all components shown by code.
      DD *4 Master Reset (Momentary Interruption) After engine is started, multi-display assembly was disconnected from the 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 receiver.
      • Check harness for communication system of radio receiver.
      • If this error occurs frequently, replace multi- display assembly.
      DE *4 Slave Reset (Momentary Interruption) After engine is started, slave component was disconnected from the 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.
      HINT:
      *1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
      *2: It is stored when 180 sec. have passed after the power supply connector is pulled out after engine start.
      *3: It may be stored when the engine key is turned 1 min. again after the engine start.
      *4: It may be stored when the engine key is turned again after the engine start.
      *5: When 210 sec. have 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)
    PHYSICAL ADDRESS: 190 RADIO RECEIVER (AUDIO H/U) LOGICAL ADDRESS: 61 (CASSETTE) DIAGNOSTIC TROUBLE CODE

    DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
    40 Mechanical of Media Error Malfunction due to mechanical failure is identified.
    Or cassette tape is cut or entangled.
    • Inspect cassette tape.
    • Replace radio receiver.
  4. PHYSICAL ADDRESS: 178 NAVIGATION ECU (NAVI-ECU) 
    1. Logical address: 01 (Communication control)
      PHYSICAL ADDRESS: 178 NAVIGATION ECU (NAVI-ECU) LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC TROUBLE CODE

      DTC Diagnosis item Diagnosis content 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 navigation ECU.
      • Check harness for communication system of navigation ECU.
      D7 *2 Communication Check Error Component in which this code is recorded has been disconnected from system after engine start. Or, when this code was recorded, multi-display assembly was disconnected.
      D6
      • Check harness for power supply system of multi-display.
      • Check harness for communication system of multi-display.
      • Check harness for power supply system of navigation ECU.
      • Check harness for communication system of navigation ECU.
      DC *3 Transmission Error Transmission to component shown by auxiliary code has been failed. (This code does not always indicate actual failure.) If a same auxiliary code is recorded in other component(s), check harness for power supply and communication system of all components shown by code.
      DD *4 Master Reset (Momentary Interruption) Component that is to be master has been disconnected after engine start.
      • Check harness for power supply system of multi-display assembly.
      • Check harness for communication system of multi-display assembly.
      • If error occurs frequently, replace multi-display assembly.
      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.
      E2 ON/OFF Instruction Parameter Error Error is detected in ON/OFF control command from multi-display assembly. Replace multi-display assembly.
      E3 *1 Registration Request Transmission
      • Registration Request command is output from slave component.
      • Registration Request command is output from sub-master component.
      		 Since this DTC is provided for engineering, it may be detected when no actual failure exists.
      HINT:
      *1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
      *2: 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.
      *3: It may be stored when the engine key is turned 1 min. again after engine start.
      *4: It may be stored when the engine key is turned again after engine start.
    2. Logical address: 58 (Navigation ECU)
      PHYSICAL ADDRESS: 178 NAVIGATION ECU (NAVI-ECU) LOGICAL ADDRESS: 58 (NAVIGATION ECU) DIAGNOSTIC TROUBLE CODE

      DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
      10 Gyro Error Error in gyro sensor is detected.
      (Abnormal value in voltage output from sensor is detected for more than specified time.)      		 Replace navigation ECU.
      42 Map Disc Error Data cannot be read for a certain time due to scratches or dirt on disc surface or insertion of disc. Inspect disc and replace if necessary. (Visually check disc surface and wipe it with a soft cloth.)
      43 Vehicle Signal Error Input error of vehicle signal is detected. (When no vehicle signal has been input for a certain time.)
      • Inspect wire harness.
      • If wire harness is normal, replace navigation ECU.
      44 Player Error Malfunction of player continues for a certain length of time.
      • Check if disc can be inserted/taken out or not. If not, replace navigation ECU.
      • If it can be inserted/taken out and this code is output, replace navigation ECU.
    3. Logical address: 80 (GPS receiver)
    PHYSICAL ADDRESS: 178 NAVIGATION ECU (NAVI-ECU) LOGICAL ADDRESS: 80 (GPS RECEIVER) DIAGNOSTIC TROUBLE CODE

    DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
    11 GPS Receiver Error Operation error of GPS receiver is detected. At an outdoor site with a clear view, operate to display GPS data. If GPS mark is not properly displayed after 15 min. or more, replace navigation ECU.
    40 GPS Antenna Error Open condition of GPS antenna is detected. (Open circuit, connection failure of connectors, etc.) Inspect antenna and replace if necessary.
    41 Power Supply Error of GPS Antenna Abnormal voltage of GPS antenna cable or short circuit is detected.
    • Inspect GPS antenna and replace if necessary. (When no continuity is identified between connector's core and sealed part, GPS antenna is normal.)
    • If GPS antenna is normal, replace navigation ECU.
    45 Player Temp. Too High Readout cannot be done because temperature around player's pickup (reading part) is too high.
    • With ignition switch OFF, leave vehicle in cool shaded place for a while and recheck.
    • If same code detected, replace navigation ECU.
  5. PHYSICAL ADDRESS: 440 STEREO COMPONENT AMPLIFIER (DSP AMP) 

    Logical address: 01 (Communication control)

    PHYSICAL ADDRESS: 440 STEREO COMPONENT AMPLIFIER (DSP AMP) LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC TROUBLE CODE

    DTC Diagnosis item diagnosis content 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 receiver.
    • Check harness for communication system of radio receiver.
    • 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 recording this code, multi-display assembly was disconnected.
    • Check harness for power supply of radio receiver.
    • Check harness for communication system of radio receiver.
    • 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 always indicate actual failure.) If same auxiliary code is recorded in order component, check harness for power supply and communication system of all components shown by code.
    DD *3 Master Reset (Momentary Interruption) After engine is started, multi-display assembly was disconnected from system.
    • Check harness for power supply of radio receiver.
    • Check harness for communication system of radio receiver.
    • 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.
    HINT:
    *1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for starting an engine.
    *2: It may be stored when the engine key is turned 1 min. again after engine start.
    *3: It may be stored when the engine key is turned again after engine start.
    *4: When 210 sec. have passed after pulling out the power supply connector of the master component with the ignition switch in ACC or ON, this code is stored.
  6. PHYSICAL ADDRESS: 250 DVD AUTO CHANGER (DVD-CH) 
    1. Logical address: 01 (Communication control)
      PHYSICAL ADDRESS: 250 DVD AUTO CHANGER (DVD-CH) LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL)

      DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
      21 ROM Error Abnormal condition of ROM is detected. Replace DVD auto changer.
      22 RAM Error Abnormal condition of ROM is detected. Replace DVD auto changer.
      D6 *2 Absence of Master Component in which this code is recorded is or was disconnected from system after engine start. Or, when recording this code, 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 DVD auto changer
      • Check harness for communication system DVD auto changer
      D7 *5 Connection check Error Component in which this code is recorded is or was disconnected from system after engine start. Or, when recording this code, multi-display assembly was disconnected.
      • Check harness for power supply of multi-display.
      • Check harness for communication system of multi-display.
      • Check harness for power supply of DVD auto changer.
      • Check harness for communication system of DVD auto changer.
      DC *2 Transmission Error Transmission to component shown by auxiliary code has been failed.
      (Detecting this DTC does not always indicate actual failure.)      		 If a same auxiliary code is recorded in order component, check harness for power supply and communication system of all components shown by code.
      DD *3 Master Reset (Momentary Interruption) After the engine starts, multi-display assembly was disconnected from system.
      • Check harness for power supply system of multi-display.
      • Check harness for communication system multi-display.
      • Check harness for power supply system of DVD auto changer.
      • Check harness for communication system DVD auto changer.
      • 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, it may be detected when no actual failure exists.
      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, it may be stored depending on the battery condition or voltage for starting an engine.
      *2: It may be stored when the engine key is turned 1 min. again after engine start.
      *3: It may be stored when the engine key is turned again after engine start.
      *4: It 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: 45 (DVD Changer)
    PHYSICAL ADDRESS: 250 DVD AUTO CHANGER (DVD-CH) LOGICAL ADDRESS: 45 (DVD CHANGER)

    DTC Diagnosis item Diagnosis content Countermeasure and inspected parts
    44 DVD Error Error is detected in DVD auto changer. Replace DVD auto changer.
    45 EJECT Error Disc cannot be ejected.
    • Check whether foreign matters enter inspection.
    • Replace DVD auto changer.
    46 Disc Crack A crack and dirt are in a disc.
    • Inspect disc.
    • Replace disc.
    • Head cleaning.
    47 DVD High Temp High temperature is detected in DVD auto changer. Do not stop the operation for a period of time.
    48 DVD Excess Current Excess current is applied to DVD auto changer. Replace DVD auto changer.
    50 A Malfunction in insertion/ejection Operation malfunction in insertion/ejection. Replace DVD auto changer.
    51 A Malfunction in switching disc Operation malfunction in switching disc. Replace DVD auto changer.
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