CRUISE CONTROL SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
-
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 main switch cannot be turned on. | Cruise control switch circuit | |
| Cruise main indicator light circuit | ||
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| Vehicle speed setting cannot be performed (the cruise main indicator light on the combination meter illuminates when the main switch is turned on, but turns off when SET function is operating). | Cruise control switch circuit | |
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| Vehicle speed setting cannot be performed (the cruise main indicator light on the combination meter illuminates when the main switch is turned on, and remains illuminated when SET function is operating). | Stop light switch circuit | |
| Vehicle speed sensor circuit | ||
| Cruise control switch circuit | ||
| Transmission range sensor circuit (for U660F) | ||
| Transmission range sensor circuit (for U760E) | ||
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| The cruise control is canceled while it is operating. | Stop light switch circuit | |
| Transmission range sensor circuit (for U660F) | ||
| Transmission range sensor circuit (for U760E) | ||
| Cruise control switch circuit | ||
| Vehicle speed sensor circuit | ||
| Park/neutral position switch (for U660F) | ||
| Park/neutral position switch (for U760E) | ||
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| Pulling back on the control main switch does not cancel the cruise control. (The cruise main indicator light remains on.) | Cruise control switch circuit | |
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| Pulling back on the control main switch does not cancel the cruise control. (The cruise main indicator light goes off.) | ECM (for 2GR-FE) | |
| ECM (for 1AR-FE) | ||
| The cruise control is not canceled when vehicle speed drops below the low speed limit. (The cruise main indicator light remains on.) | Vehicle speed sensor circuit | |
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| The cruise control is not canceled when vehicle speed drops below the low speed limit. (The Cruise main indicator light goes off.) | ECM (for 2GR-FE) | |
| ECM (for 1AR-FE) | ||
| Depressing the brake pedal does not cancel the cruise control. (The cruise main indicator light remains on.) | Stop light switch circuit | |
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| Depressing the brake pedal does not cancel the cruise control. (The cruise main indicator light goes off.) | ECM (for 2GR-FE) | |
| ECM (for 1AR-FE) | ||
| Moving the shift lever does not cancel the cruise control. (The cruise main indicator light remains on.) | Transmission range sensor circuit (for U660F) | |
| Transmission range sensor circuit (for U760E) | ||
| Park/neutral position switch (for U660F) | ||
| Park/neutral position switch (for U760E) | ||
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| Moving the shift lever does not cancel the cruise control. (The cruise main indicator light goes off.) | ECM (for 2GR-FE) | |
| ECM (for 1AR-FE) | ||
| Operating the transmission shift switch does not cancel the cruise control. (The cruise main indicator light remains on.)* | Transmission range sensor circuit (for U660F) | |
| Shift paddle switch circuit | ||
| ECM (for 2GR-FE) | ||
| Operating the transmission shift switch does not cancel the cruise control. (The cruise main indicator light goes off.)* | ECM (for 2GR-FE) | |
| Hunting (Speed is not constant.) | Vehicle speed sensor circuit | |
| SFI system (2GR-FE) | ||
| SFI system (1AR-FE) | ||
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| The cruise main indicator light remains blinking. | TC and CG terminal circuit | |
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) | ||
| The "SET" indicator does not comes on (SET function operates normally) | Combination meter assembly | |
| ECM (for 2GR-FE) | ||
| ECM (for 1AR-FE) |
-
*: w/ Shift Paddle Switch