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 153 (CRUISE CONTROL SYSTEMS)SELF-DIAGNOSTIC SYSTEMCLEARING DIAGNOSTIC TROUBLE CODES
2004 Toyota Matrix XR, FWD, Standard
Clearing Diagnostic Trouble Codes
2004 Toyota Matrix XR, FWD, StandardSECTION Clearing Diagnostic Trouble Codes
WARNING: This page is about a different car, the 2003 Lexus ES 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
- The following actions will erase the DTCs and freeze frame data.
- Operating the OBD II scan tool (complying with SAE J1978) or the hand-held tester to erase the codes. See the OBD II scan tool's instruction book for operating instructions.
- Disconnecting the battery terminals. However, when battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See appropriate COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.
- Removing the EFI fuse, (located in left side engine room Junction Box), for 10 seconds or more with the ignition switch off.
- Removing the ECU-B fuse, (located in driver side Junction Box), for 10 seconds or more with the ignition switch off.
- Check that the normal code is displayed after clearing DTC(s).
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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.