System Tests: Notes
WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before proceeding with any system test, ensure proper trouble shooting procedure was performed and no DTCs are present. See TROUBLE SHOOTING . If no DTCs are present and symptom is unknown, perform CRUISE CONTROL INPUT SIGNAL CHECK to identify problem area. Identify symptom and perform appropriate test. Perform tests in order listed.
SYMPTOM INDEX
| Symptom | Perform Test | |
|---|---|---|
| SET Function Not Occurring Or CANCEL Function Occurring | ||
| Normal DTC Output On Input Signal Check | TEST NO. 1 | |
| No DTC Output | TEST NO. 2 | |
| Actual Vehicle Speed Deviates From Set Speed | TEST NO. 3 | |
| Frequent 3rd & Overdrive Gear Shifting (Hunting) While Driving Uphill | TEST NO. 4 | |
| Cruise Control Does Not Cancel Even When Brake Pedal Is Depressed | TEST NO. 5 | |
| Cruise Control Does Not Cancel Even When Transaxle Is Shifted To Neutral | TEST NO. 6 | |
| Cruise Control Switch Does Not Operate (SET/COAST, RES/ACC Or CANCEL Functions Not Possible) | TEST NO. 7 | |
| Set Possible At 25 MPH Or Less, Or Cancel Does Not Operate At 25 MPH Or Less | TEST NO. 8 | |
| Poor Response In ACC & RES Modes | TEST NO. 9 | |
| Overdrive Does Not Resume, Even Though Road Is Not Uphill | TEST NO. 10 | |
| DTC Memory Erased | TEST NO. 11 | |
| DTC Not Output, Or DTC Output When It Should Not Be | TEST NO. 12 | |
| Cruise Indicator Light Stays On Or Fails To Turn On | TEST NO. 13 | |