CRUISE CONTROL SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Main switch cannot be turned ON (Cruise control indicator on combination meter does not illuminate) | Cruise control switch circuit | |
| Cruise main indicator light circuit | ||
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| SET not occurring or CANCEL occurring (DTC is not output) | Cruise control switch circuit | |
| Combination meter assembly | ||
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Actual vehicle speed deviates above or below the set speed | Brake actuator assembly | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Gear shifting occurs frequently between 6th and O/D when driving with cruise control on | Brake actuator assembly | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Cruise control not canceled, even when brake pedal is depressed | Stop light switch circuit | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Cruise control not canceled, even when transmission is shifted to N | Park/neutral position switch circuit (for A760H) | |
| Park/neutral position switch circuit (for A760E) | ||
| Park/neutral position switch circuit (for A960E) | ||
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Cruise control not canceled when transmission is changed from 4th gear to 3rd, 2nd or 1st gear with the shift paddle switch while shift lever in D or M | Shift paddle switch circuit (for A760H) | |
| Shift paddle switch circuit (for A760E) | ||
| Shift paddle switch circuit (for A960E) | ||
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Control switch does not operate (-/SET, +/RES, CANCEL not possible) | Cruise control switch circuit | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Speed setting cannot be canceled (CANCEL function fails) | Cruise control switch circuit | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| SET possible at 40 km/h (25 mph) or less, or CANCEL does not operate | Brake actuator assembly | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Poor response in ACCEL and RESUME modes | Cruise control switch circuit | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| O/D does not resume, even though road is not uphill | Brake actuator assembly | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| DTC memory is erased | ECM (for 2GR-FSE) | |
| ECM (for 4GR-FSE) | ||
| DTC is not output, or is output when should not be | TC and CG terminal circuit | |
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Cruise main indicator light does not illuminate | Cruise control switch circuit | |
| Cruise main indicator light circuit | ||
| Combination meter assembly | ||
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) | ||
| Cruise set indicator light does not illuminate | Cruise control switch circuit | |
| Cruise SET indicator light circuit | ||
| Combination meter assembly | ||
| ECM (for 2GR-FSE) | ||
| ECM (for 4GR-FSE) |