Lexus IS250 · Service Manual BODY ELECTRICAL

DIAGNOSIS DISPLAY DETAILED DESCRIPTION

Troubleshooting

HINT:
  1. This section contains a detailed description of displays within diagnostic mode.
  2. Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle.


SYSTEM CHECK

  1. System Check Mode Screen
    I100055E08

    1. Device Names and Hardware Address/*1

      HINT:
      1. Registered device names are displayed.
      2. If a device name is unknown to the system, its physical address is shown instead.
      Address No.
      		 Name
      		 Address No.
      		 Name
      110
      		 EMV
      		 120
      		 AVX
      128
      		 1DIN TV
      		 140
      		 AVN
      144
      		 G-BOOK
      		 178
      		 NAVI
      17C
      		 MONET
      		 190
      		 AUDIO H/U
      1AC
      		 CAMERA-C
      		 1B0
      		 Rr-TV
      1C0
      		 Rr-CONT
      		 19D
      		 BT-HF
      1C4
      		 PANEL
      		 1C6
      		 G/W
      1C8
      		 FM-M-LCD
      		 1D8
      		 CONT-SW
      1EC
      		 Body
      		 118
      		 EMVN
      1F1
      		 XM
      		 1F2
      		 SIRIUS
      230
      		 TV-TUNER
      		 240
      		 CD-CH2
      250
      		 DVD-CH
      		 280
      		 CAMERA
      360
      		 CD-CH1
      		 3A0
      		 MD-CH
      17D
      		 TEL
      		 440
      		 DSP-AMP
      530
      		 ETC
      		 1F6
      		 RSE
      1A0
      		 DVD-P
      		 1D6
      		 CLOCK
      238
      		 DTV
      		 480
      		 AMP

    2. Check Result/*2

      HINT:
      Result codes for all devices are displayed.
      Result
      		 Meaning
      		 Action
      OK
      		 The device did not respond with a DTC (excluding communication DTCs from the AVC-LAN).
      		 -
      EXCH
      		 The device responds with a "replace"-type DTC.
      		 Look up the DTC in "Unit Check Mode" and replace the device.
      CHEK
      		 The device responds with a "check"-type DTC.
      		 Look up the DTC in "Unit Check Mode".
      NCON
      		 The device was previously present, but does not respond in diagnostic mode.
      1. Check power supply wire harness of the device.
      2. Check the AVC-LAN of the device.
      Old
      		 The device responds with an "old"-type DTC.
      		 Look up the DTC in "Unit Check Mode".
      NRES
      		 The device responds in diagnostic mode, but gives no DTC information.
      1. Check power supply wire harness of the device.
      2. Check the AVC-LAN of the device.

    3. Code Clear/*3

      1. Present DTCs are cleared.
      2. Press the "Code CLR" switch for 3 seconds.

    4. Memory Clear/*4

      1. Present and past DTCs and registered connected device names are cleared.
      2. Press the "Memory CLR" switch for 3 seconds.

  2. Diagnosis MENU Screen
    E120070

    HINT:
    Each item is grayed out or not displayed based on the device settings.

  3. Unit Check Mode Screen
    E120071E02

    Screen Description: 
    Display
    		 Contents
    Device name/*1
    		 Target device
    Segment/*2
    		 Target device logical address
    DTC/*3
    		 DTC (Diagnostic Trouble Code)
    Timestamp/*4
    		 The time and date of past DTCs are displayed. (The year is displayed in 2-digit format.)
    Present Code/*5
    		 DTCs output at the service check are displayed.
    Past Code/*6
    		 Diagnostic memory results and recorded DTCs are displayed.
    Diagnosis Clear Switch/*7
    		 Pushing this switch for 3 seconds clears the diagnostic memory data of the target device. (Both response to diagnostic system check result and the displayed data are cleared.)

  4. LAN Monitor (Original) Screen
    I100058E04

    1. Check Result/*1

      HINT:
      Check results of all the devices are displayed.
      Result
      		 Meaning
      		 Action
      No Err (OK)
      		 There are no communication DTCs.
      		 -
      CHEK
      		 The device responds with a "check" -type DTC.
      		 Look up the DTC in "Unit Check Mode".
      NCON
      		 The device was previously present, but does not respond in diagnostic mode.
      1. Check power supply wire harness of the device.
      2. Check the AVC-LAN of the device.
      Old
      		 The device responded with an "old" -type DTC.
      		 Look up the DTC in "Unit Check Mode".
      NRES
      		 The device responds in diagnostic mode, but gives no DTC information.
      1. Check power supply wire harness of the device.
      2. Check the AVC-LAN of the device.

  5. LAN Monitor (Individual) Screen
    E120072E01

    Screen Description: 
    Display
    		 Contents
    Device name/*1
    		 Target device
    Segment/*2
    		 Target logical address
    DTC/*3
    		 DTC (Diagnostic Trouble Code)
    Sub-code (device address)/*4
    		 Physical address stored with DTC (If there is no address, nothing is displayed.)
    Connection check No./*5
    		 Connection check number stored with DTC
    DTC occurrence/*6
    		 Number of times the same DTC has been recorded
    Diagnosis Clear Switch/*7
    		 Pushing this switch for 3 seconds clears the diagnostic memory data of the target device. (Both response to diagnostic system check result and the displayed data are cleared.)


DISPLAY CHECK

  1. Vehicle Signal Check Mode Screen
    I100060

    Screen Description: 
    Name
    		 Contents
    Battery
    		 Battery voltage is displayed.
    PKB
    		 Parking brake ON/OFF state is displayed.
    REV
    		 Reverse signal ON/OFF state is displayed.
    IG
    		 Engine switch ON/OFF state is displayed.
    ADIM/TCAN
    		 Brightness state DIM (with) / BRIGHT (without) is displayed.
    TAIL
    		 TAIL signal (Light control switch) ON/OFF state is displayed.
    SPEED
    		 Vehicle speed is displayed in km/h.

    HINT:
    1. Only items sending a vehicle signal will be displayed.
    2. This screen is updated once per second when input signals to the vehicle are changed.

  2. Microphone & Voice Recognition Check Screen
    E125091E01

    Screen Description: 
    Name
    		 Contents
    Microphone input level meter/*1
    		 Monitors the microphone input level every 100 ms and displays the results in 8 different levels.
    Recording switch/*2
    		 Starts recording.
    Stop switch/*3
    		 Stops recording.
    Play switch/*4
    		 Plays the recorded voice.
    Recording indicator/*5
    		 Comes on while recording.

    HINT:
    1. The microphone input function is on at all times when this screen is displayed.
    2. While recording or playing, the switches other than the stop switch cannot be pushed.
    3. When no voice is recorded, the play switch cannot be pushed.
    4. Recording will stop after 5 seconds or by pushing the stop switch.

  3. CAN Connection Check Screen
    E120075E01

    Screen Description: 
    Name
    		 Contents
    CAN Connection check result/*1
    1. For systems connected to the CAN system, the results of the CAN connection check are displayed.
    2. "NG" - The engine switch is on (ACC or IG) and the CAN communication lines are malfunctioning or the CAN bus lines are not connected.
    3. "OK" - The engine switch is on (ACC or IG) and the CAN communication lines are normal.
    4. Blank - CAN connection check is performed with the engine switch is on (ACC) or off.

    HINT:
    1. This function operates only for the systems connected to the CAN system.
    2. When the engine switch is turned off, the bus lines are disconnected, or a malfunction occurs in the bus lines while the CAN connection check result is being displayed, the problem will be reflected on the screen in real time.


NAVIGATION CHECK

  1. Navigation Check Screen
    E120076

    HINT:
    Each item is grayed out or not displayed based on the device settings.

  2. GPS Information Screen
    I102405E01

    1. Satellite information/*1
      Information from a maximum of 12 satellites is displayed on the screen. This information includes the target GPS satellite number, elevation angle, direction, and signal level.

    2. Receiving condition/*2

      (DENSO model): 
      Display
      		 Contents
      T
      		 The system is receiving a GPS signal, but is not using it for location.
      P
      		 The system is using the GPS signal for location.
      -
      		 The system cannot receive a GPS signal.
      (AISIN AW model): 
      Display
      		 Contents
      01H
      		 The system cannot receive a GPS signal.
      02H
      		 The system is tracing a satellite.
      03H
      		 The system is receiving a GPS signal, but is not using it for location.
      04H
      		 The system is using the GPS signal for location.
      Measurement information/*3: 
      Display
      		 Contents
      2D
      		 2-dimensional location method is being used.
      3D
      		 3-dimensional location method is being used.
      NG
      		 Location data cannot be used.
      Error
      		 Reception error has occurred.
      -
      		 Any other state.
      Position information/*4 
      Display
      		 Contents
      Position
      		 Latitude and longitude information on the current position is displayed.
      Date information/*5: 
      Display
      		 Contents
      Date
      		 The date/time information obtained from GPS signal is displayed in Greenwich mean time (GMT). The last 4 digits are displayed.

  3. Vehicle Sensors Screen
    E120077E01

    Vehicle signal: 
    Display
    		 Contents
    REV/*1
    		 REV signal ON/OFF state is displayed.
    SPD/*2
    		 SPD signal condition is displayed.
    Sensor signal: 
    Display
    		 Contents
    Gyro sensor/*3
    		 Gyro sensor output condition is displayed (when the vehicle runs straight or is stationary, the voltage is approximately 2.5 V).

    HINT:
    Signals are updated once per second only when vehicle sensor signals are changed.

  4. Microphone & Voice Recognition Check Screen
    E125119E01

    Screen Description: 
    Display
    		 Contents
    Microphone input level meter/*1
    		 Monitors the microphone input level every 100 ms and displays the results in 8 different levels.
    Recording switch/*2
    		 Starts recording.
    Stop switch/*3
    		 Starts recording.
    Play switch/*4
    		 Plays the recorded voice.
    Recording indicator/*5
    		 Comes on while recording.

    HINT:
    1. The microphone input function is on at all times when this screen is displayed.
    2. While recording or playing, the switches other than the stop switch cannot be pushed.
    3. When no voice is recorded, the play switch cannot be pushed.
    4. Recording will stop after 5 seconds or by pushing the stop switch.

  5. RDS-TMC Information Screen (Only Europe)
    E110939E01

    Frequency/*1 
    Display
    		 Contents
    Frequency
    		 The latest received frequency, at which an RDS-TMC signal is detected, is displayed.
    Date of update/*2 
    Display
    		 Contents
    Date
    		 The latest date and time of TMC signal detection are displayed. (Greenwich mean time)
    PI code/*3 
    Display
    		 Contents
    PI code
    		 Broadcast station identification code (to identify the content of the program) is displayed.
    PS name/*4 
    Display
    		 Contents
    PS name
    		 Broadcast station name is displayed.
    Provider name/*5 
    Display
    		 Contents
    Provider
    		 The name of the TMC provider (TMC information source) is displayed (max. 8 characters).
    MGS/*6 
    Display
    		 Contents
    MGS
    		 The latest radio reception area is displayed.
    The letter "N", "R", and/or "U" is displayed depending on the reception area.

    HINT:
    1. If radio wave has never been received, "-" is displayed for all the items.
    2. As for the MGS, "N" shows a domestic level, "R" shows a local level, and "U" shows a city level. If 2 or 3 levels are applicable, the letters are displayed in a line.
    3. RDS-TMC information is not updated in DTC mode.

  6. DVD Played Information Screen
    E120078E01

    Screen Description: 
    Display
    		 Contents
    Trouble code/*1
    		 Each code corresponding to the malfunctions is displayed. For details, refer to "Trouble Code Description".
    Occurrence time/*2
    1. The date (year, month, day) and time (hour, minute, second) when the trouble code was detected are displayed as a time stamp. (Greenwich mean time)
    2. The time data to be displayed are received from the GPS receiver.
    Trouble code clear switch/*3
    		 All code data being displayed are cleared by pushing this switch for 3 seconds.
    Returning switch/*4
    		 The previous page is displayed. If the current displayed page is the first page, this switch cannot be operated.
    Proceeding switch/*5
    		 The next page is displayed. If the current displayed page is the last page, this switch cannot be operated.
    Trouble Code Description: 
    Code
    		 Malfunction
    		 Countermeasure
    01
    		 Cannot be recognized
    		 Replace navigation ECU.
    03
    		 Cannot be read
    		Follow the inspection procedure for DTC 58-42 (Click here).

    HINT:
    This is a DVD player check function in the navigation ECU.

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