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 MANUALSHONDA2002CIVIC SIREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 178 (KEYLESS/POWER DOOR LOCKS/SECURITY SYSTEM)CONTROL UNIT INPUT TEST
2002 Honda Civic Si
Control Unit Input Test
2002 Honda Civic SiSECTION Control Unit Input Test
WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before troubleshooting the keyless entry/security control system, troubleshoot the multiplex integrated control system first using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
Make sure the ignition switch OFF before troubleshooting the driver's under-dash fuse/relay box.
Multiplex Integrated Control Unit
- Turn the ignition switch OFF.
- Remove the left kick panel (see TRIM REMOVAL/INSTALLATION - DOOR AREAS ).
- Disconnect the driver's under-dash fuse/relay box connectors.NOTE: All connector views are wire side of female terminals.
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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.