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 MANUALSHONDA2000INSIGHTREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSAIR BAG, SRSAIR BAG RESTRAINT SYSTEMSDIAGNOSTIC TESTSDTC2-4
2000 Honda Insight
Diagnostic Tests: DTC2-4
2000 Honda InsightSECTION DTC2-4
WARNING:
Whenever ignition is on, or has been turned off for less than 3 minutes, be careful not to bump SRS unit. Air bags could accidentally deploy and cause damage or injury.
- Before proceeding, See AIR BAG SAFETY PRECAUTIONS . Erase DTC memory. See ERASING DIAGNOSTIC TROUBLE CODE MEMORY under DIAGNOSTICS. Turn ignition on. If indicator light stays on, go to next step. If light goes off after about 6 seconds, system is okay at this time. See TROUBLESHOOTING INTERMITTENT FAILURES under DIAGNOSTICS.
- Turn ignition off. Disconnect negative battery cable. Wait at least 3 minutes. Disconnect passenger-side air bag 2-pin connector from floor harness. See Figure. Connect SRS Simulator Lead "C" (07TAZ-SZ5011A) and SRS Inflator Simulator (07SAZ-TB4011A) to floor harness 2-pin connector. DO NOT disconnect driver-side air bag connector. Reconnect negative battery cable. Erase DTC memory. See ERASING DIAGNOSTIC TROUBLE CODE MEMORY under DIAGNOSTICS. Read DTC. See DIAGNOSTIC TROUBLE CODE (DTC) under DIAGNOSTICS. If DTC 2-4 is indicated, go to next step. If DTC 2-4 is not indicated, replace passenger-side air bag assembly. See AIR BAG ASSEMBLIES under REMOVAL & INSTALLATION.
- Disconnect negative battery cable. Wait at least 3 minutes. Disconnect driver-side air bag 2-pin connector from cable reel 2-pin connector. See Figure. Disconnect both seat belt tensioner 2-pin connectors. See Figure. Disconnect floor harness 18-pin connector from SRS unit. See Figure. Disconnect SRS Simulator lead "C" and SRS inflator simulator from passenger-side floor harness 2-pin connector. Reconnect negative battery cable. Turn ignition on and measure voltage between ground and terminals No. 6 and 15 of floor harness 18-pin connector. If voltage is 0.5 volt or less, replace SRS unit. See SRS UNIT under REMOVAL & INSTALLATION.If voltage is more than 0.5 volt, replace floor harness.
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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.