Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
HINT
- Use the table below to help determine the cause of problem symptoms If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table Check each symptom by checking the suspected areas in the order they are listed Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Pre-Collision System
PROBLEM SYMPTOMS - PRE-COLLISION SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| System operates when the possibility of collision does not exist | Millimeter wave radar sensor | MILLIMETER WAVE RADAR SENSOR |
| Distance control ECU | DISTANCE CONTROL ECU | |
| System does not operate when the possibility of collision exists | Millimeter wave radar sensor | MILLIMETER WAVE RADAR SENSOR |
| Check if inoperative conditions of the system are met | SYSTEM DESCRIPTION | |
| Distance control ECU | DISTANCE CONTROL ECU | |
| Neither normal system code nor DTC is output | Power source circuit | POWER SOURCE CIRCUIT |
| System does not operate normally even when normal system code is output and DTC s are not output | Power source circuit | POWER SOURCE CIRCUIT |