Lexus IS250 IS220d GSE20 ALE20 - NAVIGATION
NAVIGATION SYSTEM - DIAGNOSIS DISPLAY DETAILED DESCRIPTION
- HINT:
This section contains a detailed description of displays within diagnostic mode.
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 |
System Check Mode Screen
Device Names and Hardware Address/*1
- HINT:
Registered device names are displayed.
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 |
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. | Check power supply wire harness of the device. 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. | Check power supply wire harness of the device. Check the AVC-LAN of the device. |
Code Clear/*3
Present DTCs are cleared.
Press the "Code CLR" switch for 3 seconds.
Memory Clear/*4
Present and past DTCs and registered connected device names are cleared.
Press the "Memory CLR" switch for 3 seconds.
Diagnosis MENU Screen
- HINT:
- Each item is grayed out or not displayed based on the device settings.
Unit Check Mode Screen
| 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.) |
LAN Monitor (Original) Screen
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. | Check power supply wire harness of the device. 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. | Check power supply wire harness of the device. Check the AVC-LAN of the device. |
LAN Monitor (Individual) Screen
| 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 |
Vehicle Signal Check Mode Screen
| 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:
Only items sending a vehicle signal will be displayed.
This screen is updated once per second when input signals to the vehicle are changed.
Microphone & Voice Recognition Check Screen
| 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:
The microphone input function is on at all times when this screen is displayed.
While recording or playing, the switches other than the stop switch cannot be pushed.
When no voice is recorded, the play switch cannot be pushed.
Recording will stop after 5 seconds or by pushing the stop switch.
CAN Connection Check Screen
| Name | Contents |
| CAN Connection check result/*1 | For systems connected to the CAN system, the results of the CAN connection check are displayed. "NG" - The engine switch is on (ACC or IG) and the CAN communication lines are malfunctioning or the CAN bus lines are not connected. "OK" - The engine switch is on (ACC or IG) and the CAN communication lines are normal. Blank - CAN connection check is performed with the engine switch is on (ACC) or off. |
- HINT:
This function operates only for the systems connected to the CAN system.
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 |
Navigation Check Screen
- HINT:
- Each item is grayed out or not displayed based on the device settings.
GPS Information Screen
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.
Receiving condition/*2
| 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. |
| 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. |
| 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. |
| Display | Contents |
| Position | Latitude and longitude information on the current position is displayed. |
| Display | Contents |
| Date | The date/time information obtained from GPS signal is displayed in Greenwich mean time (GMT). The last 4 digits are displayed. |
Vehicle Sensors Screen
| Display | Contents |
| REV/*1 | REV signal ON/OFF state is displayed. |
| SPD/*2 | SPD signal condition is displayed. |
| 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.
Microphone & Voice Recognition Check Screen
| 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:
The microphone input function is on at all times when this screen is displayed.
While recording or playing, the switches other than the stop switch cannot be pushed.
When no voice is recorded, the play switch cannot be pushed.
Recording will stop after 5 seconds or by pushing the stop switch.
RDS-TMC Information Screen (Only Europe)
| Display | Contents |
| Frequency | The latest received frequency, at which an RDS-TMC signal is detected, is displayed. |
| Display | Contents |
| Date | The latest date and time of TMC signal detection are displayed. (Greenwich mean time) |
| Display | Contents |
| PI code | Broadcast station identification code (to identify the content of the program) is displayed. |
| Display | Contents |
| PS name | Broadcast station name is displayed. |
| Display | Contents |
| Provider | The name of the TMC provider (TMC information source) is displayed (max. 8 characters). |
| 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:
If radio wave has never been received, "-" is displayed for all the items.
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.
RDS-TMC information is not updated in DTC mode.
DVD Played Information Screen
| Display | Contents |
| Trouble code/*1 | Each code corresponding to the malfunctions is displayed. For details, refer to "Trouble Code Description". |
| Occurrence time/*2 | 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) 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. |
| Code | Malfunction | Countermeasure |
| 01 | Cannot be recognized | Replace navigation ECU. |
| 03 | Cannot be read | Follow the inspection procedure for DTC 58-42 . |
- HINT:
- This is a DVD player check function in the navigation ECU.
LEXUS IS250, IS220d / GSE20 ALE20