Problem Symptoms Table [08/2015 - 08/2019]
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.
PRE-COLLISION SYSTEM
| Symptom | Suspected Area | Refer To |
|---|---|---|
| "CHECK PCS SYSTEM" is displayed | Seat belt control ECU | Refer to REMOVAL [08/2015 - 08/2019] |
| "PCS TEMPORARILY NOT AVAILABLE" is displayed | System determines obstacles cannot be detected due to millimeter wave radar sensor assembly or radiator grille being dirty. If dirt is removed, normal control returns (dirt history can be checked using Data List). | Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] |
| System determines millimeter wave radar sensor assembly cannot detect obstacles due to bad weather. If weather recovers, normal control returns (bad weather history can be checked using Data List). | Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] | |
| Overheating prevention function of seat belt control ECU or millimeter wave radar sensor assembly operates. If ECU temperature drops, normal control returns. | - | |
| Pre-collision brake cancel switch circuit | Refer to Pre-Collision Brake Cancel Switch Circuit [08/2015 - 08/2019] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [08/2015 - 08/2019] | |
| Seat belt control ECU | Refer to REMOVAL [08/2015 - 08/2019] | |
| Driving support ECU | Refer to REMOVAL [08/2015 - 08/2019] | |
| Although there is possibility of collision, pre-collision control (all front collision controls) does not operate ("PCS TEMPORARILY NOT AVAILABLE" is not displayed) | Vehicle condition/environment does not match pre-collision control operation conditions (confirm control operation conditions) | Refer to SYSTEM DESCRIPTION [08/2015 - 08/2019] |
| Check installation condition of millimeter wave radar sensor assembly | Refer to INSTALLATION [08/2015 - 08/2019] | |
| Perform millimeter wave radar sensor assembly adjustment | Refer to ADJUSTMENT [08/2015 - 08/2019] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [08/2015 - 08/2019] | |
| Driving support ECU | Refer to REMOVAL [08/2015 - 08/2019] | |
| Although there is no possibility of collision, pre-collision control (all front collision controls) operates | Vehicle condition/environment matches pre-collision control operation conditions (confirm control operation conditions) | Refer to SYSTEM DESCRIPTION [08/2015 - 08/2019] |
| Check millimeter wave radar sensor assembly | Refer to INSTALLATION [08/2015 - 08/2019] | |
| Perform millimeter wave radar sensor assembly adjustment | Refer to ADJUSTMENT [08/2015 - 08/2019] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [08/2015 - 08/2019] | |
| Driving support ECU | Refer to REMOVAL [08/2015 - 08/2019] | |
| Only pre-collision seat belt does not operate | Buckle switch error (malfunction in which DTC is not output) | - |
| Seat belt control ECU | Refer to REMOVAL [08/2015 - 08/2019] | |
| Pre-collision brake cannot be canceled (pre-collision warning indicator does not illuminate) | Combination meter assembly (check if indicator blinks using Active Test) | Refer to DATA LIST / ACTIVE TEST [08/2015 - 08/2019] |
| Pre-collision brake cancel switch circuit | Refer to Pre-Collision Brake Cancel Switch Circuit [08/2015 - 08/2019] | |
| Driving support ECU | Refer to REMOVAL [08/2015 - 08/2019] |