Problem Symptoms Table [09/2015 - ]
HINT:
If the normal codes for the pre-collision system and CAN communication system are output but the following problem symptoms are present, perform the malfunction diagnosis by following the "Suspected Area" procedures below.
PRE-COLLISION SYSTEM
| Symptom | Suspected Area | See page |
|---|---|---|
| "Check PCS System" is displayed | Seat belt control ECU | Refer to REMOVAL [09/2015 - ] |
| Combination meter assembly | Refer to REMOVAL [09/2015 - ] | |
| "PCS not available now" is displayed | System determines obstacles cannot be detected due to front millimeter wave radar sensor or radiator grille being dirty. If dirt is removed, normal control returns. (Dirt history can be checked using Data List.) | - |
| System determines wave radar sensor cannot detect obstacles due to bad weather. If weather recovers, normal control returns. (Bad weather history can be checked using Data List.) | - | |
| Overheating protection fail-safe of seat belt control ECU operates. If ECU temperature drops, normal control returns. | - | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [09/2015 - ] | |
| Seat belt control ECU | Refer to REMOVAL [09/2015 - ] | |
| Driving support ECU assembly | Refer to REMOVAL [09/2015 - ] | |
| Although there is possibility of collision, pre-collision control (all front collision controls) do not operate ("PCS not available now" is not displayed) | Vehicle condition/Environment does not match pre-collision control operation conditions (Confirm control operation conditions) | - |
| Check installation condition of millimeter wave radar sensor assembly | - | |
| Perform millimeter wave radar sensor assembly adjustment | Refer to ADJUSTMENT [09/2015 - ] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [09/2015 - ] | |
| Driving support ECU assembly | Refer to REMOVAL [09/2015 - ] | |
| Although there is no possibility of collision, pre-collision control (all front collision controls) operates | Check installation condition of millimeter wave radar sensor assembly | Refer to INSTALLATION [09/2015 - ] |
| Perform millimeter wave radar sensor assembly adjustment | Refer to ADJUSTMENT [09/2015 - ] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [09/2015 - ] | |
| Driving support ECU assembly | Refer to REMOVAL [09/2015 - ] | |
| 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 [09/2015 - ] | |
| Pre-collision brake cannot be canceled (pre-collision warning indicator does not blink) | Combination meter (check if indicator blinks using Active Test) | - |
| Inspect pre-collision brake cancel switch | Refer to INSPECTION [09/2015 - ] | |
| Inspect VSC off switch | - | |
| Wire harness between pre-collision brake cancel switch and driving support ECU assembly | - | |
| Driving support ECU assembly | Refer to REMOVAL [09/2015 - ] |