PRE-CRASH SAFETY SYSTEM FAIL-SAFE CHART
Tech Tips
The pre-crash safety system fail-safe function and details are indicated in the table below.
| Cause | Warning Message | Fail-safe Operation | Conditions to Return to Normal Condition |
|---|---|---|---|
| A malfunction exists in part of pre-crash system | "CHECK PCS SYSTEM " to "PCS TEMPORARILY NOT AVAILABLE" | Depending on malfunction part, pre-crash seat belt or brake assist system may stop operating*2 | Repair malfunctioning part |
| Radiator grille or millimeter wave radar sensor is dirty | "PCS TEMPORARILY NOT AVAILABLE" | Depending on dirty part, pre-crash seat belt or brake assist system may stop operating*2 | Clean radiator grille or millimeter wave radar sensor |
| Pre-crash sensor cannot detect objects because of bad weather, such as snow | "PCS TEMPORARILY NOT AVAILABLE" | Depending on dirty part, pre-crash seat belt or brake assist system may stop operating*2 | Sensor can detect objects |
| Overheating prevention function of seat belt control ECU operates*1 | "PCS TEMPORARILY NOT AVAILABLE" | Pre-crash seat belt may stop operating | Temperature of seat belt goes down, and seat belt control ECU becomes operative |
*1: The overheating prevention function operates when the seat belt control ECU detects a rise in seat belt temperature because of excessive seat belt operation.
*2: The pre-crash seat belts operate only with sudden braking.