Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 162 (CRUISE CONTROL SYSTEMS)SYSTEM TESTSNOTES
2004 Toyota Matrix XR, FWD, Standard
System Tests: Notes
2004 Toyota Matrix XR, FWD, StandardSECTION 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 | |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.