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 MANUALSACURA20043.5RLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 33 (AIR BAG RESTRAINT SYSTEMS)DIAGNOSTIC TESTSDTC 13-3
2004 Acura 3.5RL
DTC 13-3
2004 Acura 3.5RLSECTION DTC 13-3
WARNING: This page is about a different car, the 2002 Acura 3.5RL. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Accidental air bag deployment is possible. Personal injury may result. Avoid bumping SRS unit if ignition is on, or has been turned off for less than 3 minutes.
- Before proceeding, see AIR BAG SAFETY PRECAUTIONS . Erase DTC memory. See ERASING DIAGNOSTIC TROUBLE CODE MEMORY . 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 .
- Disable driver side-impact air bag. See DISABLING & ACTIVATING AIR BAG SYSTEM . Check for poor contact between SRS floor harness 4-pin connector and driver side-impact sensor. If connection is okay, go to next step. If connection is faulty, reconnect or replace SRS floor harness.
- Disable both side-impact air bags and both seat belt tensioners. See DISABLING & ACTIVATING AIR BAG SYSTEM . Disconnect SRS floor harness 4-pin connector from driver side-impact sensor. See Fig 1. Disconnect SRS floor harness 18-pin connector from SRS unit. See Figure. Measure resistance between SRS floor harness 18-pin connector terminal No. 1 and terminals No. 7, 12 and ground. If resistance is one megohm or greater, go to next step. If resistance is less than one megohm, replace SRS floor harness.
- Connect SRS floor harness 4-pin connector to SRS Test Box (07XAZ-S1A0100). See Fig 2. Measure resistance between SRS floor harness 18-pin connector terminal No. 1 and SRS test box terminal No. 4, and between SRS floor harness 18-pin connector terminal No. 7 and SRS test box terminal No. 2. If resistance is one ohm or less, go to next step. If resistance is greater than one ohm, replace SRS floor harness.
- Replace driver side-impact sensor. If problem persists, replace SRS unit. See SRS UNIT under REMOVAL & INSTALLATION.
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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.