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Diagnostic Trouble Code Chart

LEXUS NAVIGATION SYSTEM 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. MULTI DISPLAY (Physical address: 110) 
    1. Logical address: 01 (Communication control)
      MULTI DISPLAY LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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 sub-code is or was disconnected from system with ignition switch in ACC or ON.
      Communication with component shown by sub-code is not ensured when engine is started.
      • Check harness for power supply of component shown by sub-code.
      • Check harness for communication system of component shown by sub-code.
      D8 (2) No response to connection check Component shown by sub-code is or was disconnected from system after engine is started.
      • Check harness for power supply of component shown by sub-code.
      • Check harness for communication system of component shown by sub-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 sub-code.
      • Check harness for communication system of component shown by sub-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 sub-code.
      • Check harness for communication system of component shown by sub-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 system of component shown by sub-code.
      • Check harness for communication system of component shown by sub-code.
      DC (4) Transmission Error Transmission to component shown by sub-code has been failed.
      (This code does not necessarily mean actual failure.)
      If same sub-code is recorded in other component(s), check harness for power supply and communication system of all components shown by code.
      DE (3) Slave Reset (Momentary Interruption) After engine start, slave component has been disconnected. DB
      • Check harness for power supply system of component shown by sub-code.
      • Check harness for communication system of component shown by sub-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.
      (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 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 after engine start.
      (4) This code may be stored when the engine key is turned again 1 min. after engine start.
    2. Logical address: 21 (Switch)
      LOGICAL ADDRESS: 21 (SWITCH) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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 does 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)
      LOGICAL ADDRESS: 34 (FRONT PASSENGER MONITOR) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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. GATEWAY ECU (Physical address: 1C6) 

    Logical address: 01 (Communication control)

    GATEWAY ECU LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) PROBLEM SYMPTOM DIAGNOSTIC 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.
  3. RADIO AND PLAYER (Physical address: 190) 
    1. Logical address: 01 (Communication control)
      RADIO & PLAYER LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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 sub-code is or had been disconnected from system after engine is start.
      • Check harness for power supply system of component shown by sub-code.
      • Check harness for communication system of component shown by sub-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 sub-code.
      • Check harness for communication system of component shown by sub-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 sub-code.
      • Check harness for communication system of component shown by sub-code.
      • If error occurs again, replace component shown by sub-code.
      DB (1) Mode Status Error Dual alarm is detected.
      • Check harness for power supply of component shown by sub-code.
      • Check harness for communication system of component shown by sub-code.
      DC (3) Transmission Error Transmission to component shown by sub-code has been failed. (Detecting this DTC does not necessarily mean actual failure.) If same sub-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 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 is started, slave component was disconnected from system.
      • Check harness for power supply of component shown by sub-code.
      • Check harness for communication system of component shown by sub-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 an 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 tape player's switch)
      LOGICAL ADDRESS: 61 (CASSETTE TAPE PLAYER'S SWITCH) DIAGNOSTIC 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)
      LOGICAL ADDRESS: 63 (IN-DASH CD CHANGER) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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.
  4. NAVIGATION ECU (Physical address: 178) 

    HINT:

    1. Logical address: 01 (Communication control)
      NAVIGATION ECU LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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) Connection 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 sub-code has been failed.
      (This code does not necessarily mean actual failure.)
      If same sub-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.
      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.
      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) 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) This code may be stored when the engine key is turned 1 min. again after engine start.
      (4) This code may be stored when the engine key is turned again after engine start.
    2. Logical address: 80 (Navigation ECU)
      LOGICAL ADDRESS: 80 (NAVIGATION ECU) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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 wrong disc. Inspect disc and replace if necessary. (Visually check disc surface and wipe it with 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)
      LOGICAL ADDRESS: 80 (GPS RECEIVER) DIAGNOSTIC CHART

      DTC Diagnosis Item Condition Countermeasure & 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 in cool shaded place for a while and recheck.
      • If same code detected, replace navigation ECU.
  5. STEREO COMPONENT AMPLIFIER (Physical address: 440) 

    HINT:

    Logical address: 01 (Communication control)

    STEREO COMPONENT AMPLIFIER LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC CHART

    DTC Diagnosis Item Condition Countermeasure & 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 multi display.
    • Check harness for communication system of multi display.
    • 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 multi display.
    • Check harness for communication system of multi display.
    • 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 sub-code has been failed.
    (Detecting this DTC does not necessarily mean actual failure.)
    If same sub-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 of multi display.
    • Check harness for communication system of multi display.
    • 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 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.
  6. STEREO COMPONENT TURNER (Physical address: 1F0) 

    HINT:

    Logical address: 01 (Communication control)

    STEREO COMPONENT TURNER LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) DIAGNOSTIC CHART

    DTC Diagnosis Item Condition Countermeasure & 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 multi display.
    • Check harness for communication system multi display.
    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 stereo component tuner.
    • Check harness for communication system of stereo component tuner.
    • Check harness for power supply system of multi display.
    • Check harness for communication system multi display.
    DC (2) Transmission Error Transmission to component shown by sub-code has been failed.
    (Detecting this DTC does not necessarily mean actual failure.)
    If same sub-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 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 multi display.
    • Check harness for communication system multi display.
    • 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 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 multi display.
    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.
  7. AUDIO AND REAR A/C CONTROL SWITCH (Physical address: 1C0) 

    HINT:

    Logical address: 01 (Communication control)

    AUDIO & REAR A/C CONTROL SWITCH LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) PROBLEM SYMPTOM DIAGNOSTIC CHART

    DTC Diagnosis Item Condition Countermeasure & 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 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 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 sub-code has been failed.
    (Detecting this DTC does not necessarily mean actual failure.)
    If same sub-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 start, 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 audio and rear A/C control switch.
    • Check harness for communication system 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 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.
  8. TELEPHONE ECU (Physical address: 17C) 

    HINT:

    Logical address: 01 (Communication control)

    TELEPHONE ECU LOGICAL ADDRESS: 01 (COMMUNICATION CONTROL) PROBLEM SYMPTOM DIAGNOSTIC CHART

    DTC Diagnosis Item Condition Countermeasure & 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.
    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 recording this code, 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 telephone transceiver and speaker relay.
    • Check harness for communication system of telephone transceiver and speaker relay.
    DC (2) Transmission Error Transmission to component shown by sub-code has been failed.
    (Detecting this DTC does not necessarily mean actual failure.)
    If same sub-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 start, 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 telephone receiver and speaker relay.
    • Check harness for communication system of telephone receiver and speaker relay.
    • If this 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 purpose, 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.
    • 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.
    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 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.