Lexus IS250 IS220d GSE20 ALE20 - PARK ASSIST / MONITORING
PARKING ASSIST MONITOR SYSTEM - PROBLEM SYMPTOMS TABLE
- HINT:
Before inspecting the suspected areas listed in the table below, check the fuses and relay.
Before inspecting the suspected areas listed in the table below, check for DTCs and repair or replace any problem parts.
Methods used to verify the cause of the problem are listed in order of probability in the suspected area column.
- NOTICE:
- The following inspection procedures of the parking assist monitor system are described on the assumption that the navigation system is normal.
- If any navigation system DTC is output, first proceed with troubleshooting of the navigation system.
| Symptom | Suspected area | See page |
| When the shift lever is in the R position, the parking assist monitor image is not displayed (Screen is not black). | 1. Television camera ECU power source circuit | |
| 2. Reverse signal circuit | ||
| 3. Television camera ECU | ||
| When the shift lever is in the R position, the parking assist monitor image is not displayed (Screen is black). | 1. Display signal circuit between television camera ECU and multi-display | |
| 2. Display signal circuit between television camera assembly and television camera ECU | ||
| 3. Television camera assembly | ||
| 4. Television camera ECU | ||
| When the shift lever is not in the R position, the parking assist monitor image is displayed. | 1. Reverse signal circuit | |
| 2. Television camera ECU | ||
| Manual assist mode screen is normal but pressing the switch to change to parallel parking assist mode does not change the screen. | 1. Navigation ECU | |
| 2. Television camera ECU | ||
| Problem with the parking assist monitor image (color, disorder of picture). | 1. Display signal circuit between television camera assembly and television camera ECU | |
| 2. Display signal circuit between television camera ECU and multi-display | ||
| 3. Television camera assembly | ||
| 4. Television camera ECU | ||
| 5. Multi-display | ||
| When parking the vehicle with "Parallel Parking Assist" mode, even if the vehicle starts to run, the screen does not change. | This may occur when reversing at very low speed. | - |
| "SYSTEM INITIALIZING" is displayed. | Correct the steering angle neutral point without fail. | |
| Projected course guidelines are not displayed. | 1. CAN communication system (for LHD) | |
| 2. CAN communication system (for RHD) | ||
| 3. Television camera ECU |
LEXUS IS250, IS220d / GSE20 ALE20