ECU Database Revised October 2, 2005 www.plxdevices.com (408)745-7591 2000-2005 Honda S2000 ECU Pinout Diagram Connector A Pin # Name Function Signal Type A9 Vehicle Speed Sensor Vehicle speed sensor signal Speed A19 Engine Speed Pulse Engine speed pulse signal Speed A32 Brake Switch Brake switch signal Analog Connector B Pin # Name Function Signal Type B1 Power Source 12V switched Power B2 Power Ground Chassis ground Ground B9 Power Source 12V switched Power B10 Power Ground Chassis ground Ground B12 VTEC Solenoid Valve Drives VTEC solenoid valve Analog B21 Voltage Back Up Permanent 12V Power Connector C Pin # Name Function Signal Type C10 VTEC Pressure Switch Detects VTEC pressure switch signal Analog C15 Secondary O2 Sensor Secondary oxygen sensor signal Analog C16 Primary O2 Sensor Primary oxygen sensor signal Analog C17 MAP Sensor Manifold absolute pressure sensor signal 0.32V @ -13.9 PSI 4.84V @ 10.94 PSI Analog C22 Knock Sensor Engine knock sensor signal Knock, Audio C25 Intake Air Temperature Sensor Air temperature sensor signal Analog C26 Engine Coolant Temperature Sensor Engine coolant temperature sensor signal Analog C27 Throttle Position Sensor Throttle position sensor signal Analog Caution! If you are not familiar with the vehicle’s electrical systems, onboard sensors, and vehicle dynamics, DO NOT attempt to perform ANY installation of PLX Devices Inc. product(s). PLX Devices Inc. does not guarantee 100% accuracy, compatibility and specific application functionality of these documents. Use these documents as guidelines ONLY and refer to your vehicle’s service manual for detailed information.
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