Problem Symptoms Table [02/2017 - 09/2019]
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.
- The pre-collision system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.
PRE-COLLISION SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| "Pre-Collision System Unavailable" is displayed | Perform millimeter wave radar sensor assembly adjustment*1 | Refer to ADJUSTMENT [02/2017 - 08/2020] |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Combination meter assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| "Pre-Collision System Unavailable Clean Sensor" is displayed | Foreign matter attached to millimeter wave radar sensor assembly | - |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Combination meter assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| "Front Camera Unavailable" is displayed | Forward recognition camera | Refer to REMOVAL [02/2017 - 08/2020] |
| Combination meter assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| "Front Camera Vision Blocked. Clean and Demist Windshield" is displayed | Foreign matter attached to forward recognition camera or area of windshield in front of forward recognition camera | - |
| Forward recognition camera | Refer to REMOVAL [02/2017 - 08/2020] | |
| Combination meter assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Although there is possibility of collision, Pre-collision controls (all controls) do not operate ("Pre-collision System Unavailable" is not displayed) | Check if pre-collision system is canceled | - |
| Vehicle condition/environment does not match the pre-collision system operation conditions (Confirm control operation conditions). | Refer to SYSTEM DESCRIPTION [02/2017 - 05/2018] , or refer to SYSTEM DESCRIPTION [05/2018 - 08/2020] | |
| Check installation condition of millimeter wave radar sensor assembly | Refer to INSTALLATION [02/2017 - 08/2020] | |
| Perform millimeter wave radar sensor assembly adjustment | Refer to ADJUSTMENT [02/2017 - 08/2020] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Check installation condition of forward recognition camera | Refer to INSTALLATION [02/2017 - 08/2020] | |
| Perform forward recognition camera adjustment | Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [02/2017 - 08/2020] | |
| Forward recognition camera | Refer to REMOVAL [02/2017 - 08/2020] | |
| Although there is no possibility of collision, pre-collision controls (all controls) operate | Vehicle condition/environment does not match the pre-collision system operation conditions (Confirm control operation conditions). | Refer to SYSTEM DESCRIPTION [02/2017 - 05/2018] , or refer to SYSTEM DESCRIPTION [05/2018 - 08/2020] |
| Check installation condition of millimeter wave radar sensor assembly | Refer to INSTALLATION [02/2017 - 08/2020] | |
| Perform millimeter wave radar sensor assembly adjustment | Refer to ADJUSTMENT [02/2017 - 08/2020] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Check installation condition of forward recognition camera | Refer to INSTALLATION [02/2017 - 08/2020] | |
| Perform forward recognition camera adjustment | Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [02/2017 - 08/2020] | |
| Forward recognition camera | Refer to REMOVAL [02/2017 - 08/2020] | |
| Pre-collision system does not operate | Check if pre-collision system is canceled | - |
| ECU power source circuit | Refer to ECU Power Source Circuit [02/2017 - 08/2020] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Pre-collision system cannot be canceled (PCS warning light does not illuminate) | Combination meter assembly (check if indicator illuminates using Active Test) | Refer to DATA LIST / ACTIVE TEST [02/2017 - 08/2020] |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Check steering pad switch assembly condition | Refer to OPERATION CHECK [02/2017 - 08/2020] | |
| Combination meter assembly | Refer to REMOVAL [02/2017 - 08/2020] | |
| Pre-collision system warning timing cannot be changed (warning timing setting screen not displayed on multi-information display) | Millimeter wave radar sensor assembly | Refer to REMOVAL [02/2017 - 08/2020] |
| Combination meter assembly | Refer to REMOVAL [02/2017 - 08/2020] |
*1: If error code 7 is output during beam axis alignment, clear the DTCs and perform beam axis alignment again.