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.
| Symptom | Suspected Area | See page |
|---|---|---|
| The cruise control system cannot be turned on using the cruise control main switch (ON/OFF). | Cruise control switch circuit | |
| Cruise main indicator light circuit | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Vehicle speed cannot be set (the cruise control indicator illuminates when the cruise control system is turned on using the cruise control main switch (ON/OFF), but the cruise control indicator goes out when the cruise control main switch is pushed to -/SET). | Cruise control switch circuit | |
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Vehicle speed cannot be set (the cruise control indicator illuminates when the cruise control system is turned on using the cruise control main switch (ON/OFF), and it remains illuminated when the cruise control main switch is pushed to -/SET). | Stop light switch circuit | |
| Vehicle speed sensor circuit | ||
| Cruise control switch circuit | ||
| for 1UR-FE: Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| for 1VD-FTV: Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| for 1VD-FTV (w/DPF): Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| Transmission control switch circuit (for AC60F Automatic Transmission) | ||
| Transmission control switch circuit (for AE80F Automatic Transmission) | ||
| Clutch switch circuit (for Manual Transmission) | ||
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Vehicle speed control by the cruise control system is automatically canceled after it has started. | Stop light switch circuit | |
| for 1UR-FE: Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| for 1VD-FTV: Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| for 1VD-FTV (w/DPF): Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| Transmission control switch circuit (for AC60F) | ||
| Transmission control switch circuit (for AE80F) | ||
| Clutch switch circuit (for Manual Transmission) | ||
| Cruise control switch circuit | ||
| Vehicle speed sensor circuit | ||
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Pulling back on the cruise control main switch does not cancel vehicle speed control by the cruise control system. (The cruise control SET indicator remains illuminated.) | Cruise control switch circuit | |
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Pulling back on the cruise control main switch does not cancel vehicle speed control by the cruise control system. (The cruise control SET indicator goes out.) | ECM (for 1GR-FE) | |
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Vehicle speed control by the cruise control system is not canceled when vehicle speed drops below the low speed limit. (The cruise control SET indicator remains illuminated.) | Vehicle speed sensor circuit (w/ Vehicle Stability Control System) | |
| Vehicle speed sensor circuit (w/o Vehicle Stability Control System) | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Vehicle speed control by the cruise control system is not canceled when vehicle speed drops below the low speed limit. (The cruise control SET indicator goes out.) | ECM (for 1GR-FE) | |
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Depressing the brake pedal does not cancel vehicle speed control by the cruise control system. (The cruise control SET indicator remains illuminated.) | Stop light switch circuit | |
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Depressing the brake pedal does not cancel vehicle speed control by the cruise control system. (The cruise control SET indicator goes out.) | ECM (for 1GR-FE) | |
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Moving the shift lever does not cancel vehicle speed control by the cruise control system. (The cruise control SET indicator remains illuminated.) | Stop light switch circuit | |
| for 1UR-FE: Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| for 1VD-FTV: Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| for 1VD-FTV (w/DPF): Transmission control switch circuit (for AB60F Automatic Transmission) | ||
| Transmission control switch circuit (for AC60F) | ||
| Transmission control switch circuit (for AE80F) | ||
| Clutch switch circuit (for Manual Transmission) | ||
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Moving the shift lever does not cancel vehicle speed control by the cruise control system. (The cruise control SET indicator goes out.) | ECM (for 1GR-FE) | |
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Hunting (Speed is not constant.) | Vehicle speed sensor circuit (w/ Vehicle Stability Control System) | |
| Vehicle speed sensor circuit (w/o Vehicle Stability Control System) | ||
| SFI system (for 1GR-FE) | ||
| ECD system (for 1VD-FTV (w/ DPF)) | ||
| ECD system (for 1VD-FTV) | ||
| SFI system (for 1UR-FE) | ||
| SFI system (for 3UR-FE) | ||
| The cruise control SET indicator does not illuminate. (Vehicle speed can be set) | Cruise SET indicator light circuit | |
| Combination meter assembly | ||
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) | ||
| ECM (for 1UR-FE) | ||
| ECM (for 3UR-FE) | ||
| Cannot cancel by clutch operation (for Manual Transmission) | Clutch switch circuit | |
| ECM (for 1GR-FE) | ||
| ECM (for 1VD-FTV) |