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 20 (ENGINE CONTROL SYSTEM SELF-DIAGNOSTICS - V6)DIAGNOSTIC TESTSDTC P0500: VEHICLE SPEED SENSOR CIRCUITDIAGNOSIS & REPAIR
2004 Toyota Matrix XR, FWD, Standard
Diagnosis & Repair
2004 Toyota Matrix XR, FWD, StandardSECTION Diagnosis & Repair
WARNING: This page is about a different car, the 2002 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
- Test drive vehicle and check operation of speedometer. If speedometer operates properly, go to next step. If speedometer does not operate properly, repair speedometer as necessary. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. Speedometer may not operate, as input signal from vehicle speed sensor may not be input to instrument cluster. Vehicle speed sensor is located near rear of transmission or transfer case and contains a Black 3-pin electrical connector with Blue/Yellow, Black/Yellow and Pink/Blue wires. For testing of vehicle speed sensor, see VEHICLE SPEED SENSOR under ENGINE SENSORS & SWITCHES in SYSTEM & COMPONENT TESTING - V6 & V8 article.
- Remove glove box and heater duct (if necessary) for access to ECM with electrical connectors still installed on ECM. See Figure. Raise and support vehicle with one rear wheel off the ground. Place transmission in Neutral. Turn ignition on. Using voltmeter, check voltage between body ground and terminal No. 22 (Green/Orange wire) at ECM electrical connector E4 while rotating rear wheel. See Figure. This is the SP1 terminal on ECM. Voltage should pulse between zero volts and 4-6 volts. If voltage is within specification, replace ECM. If voltage is not within specification, repair open or short in Green/Orange wire and electrical connectors between ECM and instrument cluster. See WIRING DIAGRAMS article.
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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.