Problem Symptoms Table [09/2014 - 10/2015]
HINT:
- Use the table below to help determine the cause of the problem symptom. 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.
DYNAMIC RADAR CRUISE CONTROL SYSTEM
| Symptom | Suspected Area | Reference |
|---|---|---|
| Main switch cannot be turned on (Cruise control indicator light combination meter does not illuminate) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit [09/2014 - 10/2015] |
| Cruise main indicator light circuit | Refer to Cruise Main Indicator Light Circuit [09/2014 - 10/2015] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Combination meter assembly | Refer to REMOVAL [09/2014 - ] | |
| Power management control ECU | Refer to REMOVAL [09/2014 - ] | |
| Vehicle speed setting cannot be done (Cruise control indicator light on combination meter illuminates when main switch is turned on, but turns off when operating SET function) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit [09/2014 - 10/2015] |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Vehicle speed setting cannot be done (Cruise control indicator light on combination meter illuminates when main switch is turned on and remains illuminated when operating SET function) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit [09/2014 - 10/2015] |
| Stop light switch circuit | Refer to DTC C1A05: Stop Light Switch Circuit [09/2014 - 10/2015] | |
| Shift lever position sensor | Refer to REMOVAL [09/2014 - ] | |
| Transmission control switch circuit | Refer to Transmission Control Switch Circuit [09/2014 - ] | |
| Shift paddle switch circuit | Refer to Shift Paddle Switch Circuit [09/2014 - ] | |
| Integration control and panel assembly | Refer to REMOVAL [09/2014 - ] | |
| Combination meter assembly | Refer to REMOVAL [09/2014 - ] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| While vehicle is driven with cruise control, set control is cancel (Cruise control indicator light remains illuminated) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit [09/2014 - 10/2015] |
| Skid control ECU assembly | Refer to REMOVAL [09/2014 - ] | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Stop light switch circuit | Refer to DTC C1A05: Stop Light Switch Circuit [09/2014 - 10/2015] | |
| CRUISE main indicator light circuit | Refer to Cruise Main Indicator Light Circuit [09/2014 - 10/2015] | |
| Shift lever position sensor | Refer to REMOVAL [09/2014 - ] | |
| Integration control and panel assembly | Refer to REMOVAL [09/2014 - ] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Hunting (Speed is not constant) | Skid control ECU assembly | Refer to REMOVAL [09/2014 - ] |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Speedometer malfunction | Refer to Speedometer Malfunction [09/2014 - 10/2015] | |
| Millimeter wave radar sensor power source circuit | Refer to Millimeter Wave Radar Sensor Power Source Circuit [09/2014 - 10/2015] | |
| Driving support ECU power source circuit | Refer to ECU Power Source Circuit [09/2014 - 10/2015] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [09/2014 - 10/2015] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Vehicle speed setting cannot be canceled (When Coast, Acceleration, Resume, Set speed change and control switch are operated) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit [09/2014 - 10/2015] |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Erroneous detection or lost sight of vehicle in front | Clean radar sensor with soft cloth, etc. | - |
| Improper aiming of sensor beam axis | - | |
| Warning buzzer does not sound | Warning buzzer | Refer to DTC C1A4A: Skid Control Buzzer Circuit [09/2014 - 10/2015] |
| Electronically controlled brake system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] | |
| Millimeter wave radar sensor power source circuit | Refer to Millimeter Wave Radar Sensor Power Source Circuit [09/2014 - 10/2015] | |
| Driving support ECU power source circuit | Refer to ECU Power Source Circuit [09/2014 - 10/2015] | |
| Millimeter wave radar sensor assembly | Refer to REMOVAL [09/2014 - 10/2015] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Set distance cannot be changed | Distance control switch circuit | Refer to Distance Control Switch Circuit [09/2014 - 10/2015] |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| No display | Meter / gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| No brake control (when decelerating) | Electronically controlled brake system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] |
| Driving support ECU power source circuit | Refer to ECU Power Source Circuit [09/2014 - 10/2015] | |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - 10/2015] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Constant speed control mode cannot be turned on | Cruise control switch circuit | Refer to Cruise Control Switch Circuit [09/2014 - 10/2015] |
| Meter / gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] | |
| Vehicle speed cannot be canceled with wiper HI | Windshield wiper switch assembly | Refer to REMOVAL [09/2014 - 10/2015] |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Unable to adjust beam axis of millimeter wave radar sensor | Check for DTC C1A10 | Refer to DTC C1A10: Front Radar Sensor [09/2014 - 10/2015] |
| Check position, distance and angle of reflector | - | |
| Check installation of millimeter wave radar sensor assembly | - | |
| Millimeter wave radar sensor assembly | Refer to Millimeter Wave Radar Sensor Power Source Circuit [09/2014 - 10/2015] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| System cannot change between constant speed control mode and vehicle-to-vehicle distance control mode | Cruise control switch circuit | Refer to Cruise Control Switch Circuit [09/2014 - 10/2015] |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Cruise control SET indicator light does not come on (SET function operates normally) | Cruise SET indicator light circuit | Refer to Cruise SET Indicator Light Circuit [09/2014 - 10/2015] |
| Power management control ECU | Refer to REMOVAL [09/2014 - ] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Shift lever cancel operation does not operate | Shift lever position sensor | Refer to REMOVAL [09/2014 - ] |
| Power management control ECU | Refer to REMOVAL [09/2014 - ] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] | |
| Problem with headup display (w/ Headup Display) | Meter / gauge system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ] |
| Combination meter mirror ECU | Refer to REMOVAL [09/2014 - ] | |
| Combination meter assembly | Refer to REMOVAL [09/2014 - ] | |
| Driving support ECU | Refer to REMOVAL [09/2014 - 10/2015] |