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 23 (ENGINE CONTROL SYSTEM & COMPONENT TESTING - 4-CYLINDER)FUEL SYSTEMSFUEL CONTROLFUEL CUT SYSTEM (PRIUS)
2004 Toyota Matrix XR, FWD, Standard
Fuel Cut System (Prius)
2004 Toyota Matrix XR, FWD, StandardSECTION Fuel Cut System (Prius)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tacoma, 2002 Toyota RAV4, 2002 Toyota Prius, 2002 Toyota MR2, and 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS .
- It is necessary to put transit in inspection mode so engine will run continuously when checking fuel cut system. To put transit in inspection mode, perform the following steps within 60 seconds:
- Ensure ignition is off and then turn ignition on.
- Ensure transaxle is in Park and then fully depress accelerator pedal 2 times.
- Place transaxle in Neutral and then fully depress accelerator pedal 2 times.
- Place transaxle back in Park and then fully depress accelerator pedal 2 times.
- Check that master warning light on instrument cluster at center of instrument panel is flashing to indicate inspection mode operation. See Fig 1. Master warning light may also be referred to as hybrid system error warning light. Turn ignition switch to START position to start engine. Engine will now start and run continuously.
- Connect Toyota hand-held tester or scan tool to data link connector No. 3 at driver's side of instrument panel. See Figure. Hand-held tester or scan tool is used to read engine RPM. Warm engine to normal operating temperature.
- Ensure A/C is off. Gradually increase engine speed to 2250 RPM. Using stethoscope, check for fuel injector operating sound. Ensure when throttle lever is released, fuel injector stops operating momentarily and then resumes operating. Ensure when throttle lever is released, fuel injector stops operating momentarily and then resumes operating at 1400 RPM which is the fuel return RPM. Shut engine off. Remove hand-held tester or scan tool.
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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.