DYNAMIC RADAR CRUISE CONTROL SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Cruise control switch cannot be turned on (Cruise control indicator light in combination meter assembly does not illuminate) | Cruise control switch circuit | |
| ECU power source circuit | ||
| Cruise main indicator light circuit | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Driving support ECU | ||
| Vehicle-to-vehicle distance cannot be changed with distance control switch | Distance control switch circuit | |
| Driving support ECU | ||
| System cannot be changed to constant speed mode | Cruise control switch circuit | |
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Combination meter assembly | ||
| System cannot be changed to vehicle-to-vehicle distance control mode | Millimeter wave radar sensor power source circuit | |
| Millimeter wave radar sensor assembly | ||
| Cruise control switch circuit | ||
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Driving support ECU | ||
| Combination meter assembly | ||
| During constant speed mode operation, system operation is canceled | Cruise control switch circuit | |
| Park/neutral position switch | ||
| Stop light switch circuit | ||
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| During vehicle-to-vehicle distance control mode operation, system operation is canceled | Millimeter wave radar sensor power source circuit | |
| Millimeter wave radar sensor assembly | ||
| Cruise control switch circuit | ||
| Park/neutral position switch | ||
| Wiper signal circuit | ||
| Stop light switch circuit | ||
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Driving support ECU | ||
| Shift lever cancel operation does not operate | Park/neutral position switch | |
| CAN communication system (for LHD with Entry and Start System) [for 1KD-FTV] | ||
| CAN communication system (for LHD without Entry and Start System) [for 1KD-FTV] | ||
| CAN communication system (for RHD with Entry and Start System) [for 1KD-FTV] | ||
| CAN communication system (for RHD without Entry and Start System) [for 1KD-FTV] | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Transmission control ECU assembly (for 1KD-FTV) | ||
| Low speed limit cancel operation does not operate | CAN communication system (for LHD with Entry and Start System) | |
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| Skid control ECU (for LHD) | ||
| Skid control ECU (for RHD) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| During vehicle-to-vehicle distance control mode, wiper cancel operation does not operate | Wiper signal circuit | |
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Driving support ECU | ||
| Even though millimeter wave radar sensor is not dirty, "CLEAN RADAR SENSOR" is displayed | Millimeter wave radar sensor radiator grille is dirty | - |
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Combination meter assembly | ||
| Driving support ECU | ||
| No information on multi-information display | CAN communication system (for LHD with Entry and Start System) | |
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Beam axis of millimeter wave radar sensor assembly cannot be adjusted | Check installation millimeter wave radar sensor assembly | |
| Millimeter wave radar sensor assembly | ||
| Driving support ECU | ||
| Alarm buzzer does not sound | Skid control buzzer circuit | |
| Millimeter wave radar sensor assembly | ||
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Driving support ECU | ||
| No brake control (when decelerating) | Vehicle stability control system | |
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Driving support ECU | ||
| Cruise control SET indicator light does not come on (SET function operates normally) | Cruise SET indicator light | |
| CAN communication system (for LHD with Entry and Start System) | ||
| CAN communication system (for LHD without Entry and Start System) | ||
| CAN communication system (for RHD with Entry and Start System) | ||
| CAN communication system (for RHD without Entry and Start System) | ||
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1KD-FTV) | ||
| Driving support ECU |