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.
Testing and Inspection
2004 Honda S2000 L4-2.2L Service Manual : Testing and Inspection Power Relay Test [IMAGE: http://127.0.0.1:8080/images/IMP02Q313/asian150/65089425/] Use this chart to identify the type of relay, then do the test listed for it. NOTE: For the turn signal/hazard relay input test. Normally-open type A [IMAGE: http://127.0.0.1:8080/images/IMP02Q313/asian150/65096894/] Check for continuity between the terminals. - There should be continuity between the No.1 and No.2 terminals when power and ground are connected to the No.3 and No.4 terminals. - There should be no continuity between the No.1 and No.2 terminals when power is disconnected. Five-terminal type B [IMAGE: http://127.0.0.1:8080/images/IMP02Q313/asian150/803596485/] Check for continuity between the terminals. - There should be continuity between the No.1 and No.2 terminals when power and ground are connected to the No.3 and No.5 terminals. - There should be continuity between the No.1 and No.4 terminals when power is disconnected. [IMAGE: http://127.0.0.1:8080/images/IMP02Q313/asian150/803597313/] - Intermittent wiper relay ('00-01 models) - Rear window defogger relay ('02-04 models) - Rear window defogger change relay ('02-04 models) Normally-open type B [IMAGE: http://127.0.0.1:8080/images/IMP02Q313/asian150/70850869/] Check for continuity between the terminals. - There should be continuity between the No.1 and No.3 terminals when power and ground are connected to the No.2 and No.4 terminals. - There should be no continuity between the No.1 and No.3 terminals when power is disconnected. Five-terminal type A [IMAGE: http://127.0.0.1:8080/images/IMP02Q313/asian150/803598434/] Check for continuity between the terminals. - There should be continuity between the No.1 and No.2 terminals when power and ground are connected to the No.3 and No.5 terminals. - There should be continuity between the No.2 and No.4 terminals when power is disconnected.
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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.
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