Problem Symptoms Table
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.
CRUISE CONTROL SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Main switch cannot be turned ON (CRUISE main indicator turn on combination meter does not illuminate) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit |
| Cruise main indicator circuit | Refer to Cruise Main Indicator Light Circuit | |
| ECM | Refer to REMOVAL | |
| SET not occurring or CANCEL occurring (DTC is not output) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit |
| Combination meter | Refer to REMOVAL | |
| ECM | Refer to REMOVAL | |
| Actual vehicle speed deviates above or below the set speed | Skid control ECU | Refer to REMOVAL |
| ECM | Refer to REMOVAL | |
| Gear shifting occurs frequently between 7th and O/D when driving with cruise control on | Skid control ECU | Refer to REMOVAL |
| ECM | Refer to REMOVAL | |
| Cruise control not canceled, even when brake pedal is depressed | Stop light switch circuit | Refer to DTC P0571: Stop Light Switch Circuit Malfunction |
| ECM | Refer to REMOVAL | |
| Cruise control not canceled, even when transmission is shifted to N | Park / neutral position switch circuit | Refer to INSPECTION |
| ECM | Refer to REMOVAL | |
| 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 (w/ Shift Paddle Switch) | Shift paddle switch circuit | Refer to Shift Paddle Switch Circuit |
| ECM | Refer to REMOVAL | |
| Control switch does not operate (-/SET, +/RES, CANCEL not possible) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit |
| ECM | Refer to REMOVAL | |
| Speed setting cannot be canceled (CANCEL function fails) | Cruise control switch circuit | Refer to Cruise Control Switch Circuit |
| ECM | Refer to REMOVAL | |
| SET possible at 40 km/h (25 mph) or less, or CANCEL does not operate | Skid control ECU | Refer to REMOVAL |
| ECM | Refer to REMOVAL | |
| Poor response in ACCEL and RESUME modes | Cruise control switch circuit | Refer to Cruise Control Switch Circuit |
| ECM | Refer to REMOVAL | |
| O/D does not resume, even though road is not uphill | Skid control ECU | Refer to REMOVAL |
| ECM | Refer to REMOVAL | |
| DTC memory is erased | ECM | Refer to REMOVAL |
| DTC is not output, or is output when should not be | TC and CG terminal circuit | Refer to TC and CG Terminal Circuit |
| ECM | Refer to REMOVAL | |
| Cruise main indicator light does not illuminate | Cruise control switch circuit | Refer to Cruise Control Switch Circuit |
| Cruise main indicator circuit | Refer to Cruise Main Indicator Light Circuit | |
| Combination meter | Refer to REMOVAL | |
| ECM | Refer to REMOVAL |