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.
Tips From Training: Electronic Troubleshooting (ASN0304-10)
2004 Acura 3.5RLSECTION Tips From Training: Electronic Troubleshooting (ASN0304-10)
Publication date: 2004-03-01
Reference number: ASN0304-10
Tips From Training: Electronic Troubleshooting
Reference number: ASN0304-10
Tips From Training: Electronic Troubleshooting
ACURA SERVICE NEWS
Reference Number(s): ASN0304-10, Date of Issue:
March 1, 2004
| HONDA: | All Models |
| CATEGORY: | Acura Service News |
| APPLIES TO: | All Models |
SERVICE INFORMATION
Christine Vinson, Training Instructor in Mount Laurel, NJ, passed along these great tips to help make troubleshooting of electronic systems just a little bit easier.
- Check Tech Line Summaries, ServiceNews articles, S/Bs, S/Ms, and ETMs for related info. Follow any recommended procedures first.
- If the system is multiplexed, make sure you're familiar with all diagnostic procedures for checking system communication. Also, make sure you know how to put the system in selfdiagnostic mode and what systems the HDS can test.
- Make yourself a copy of the circuit schematic. Look at how the system normally works, and isolate only those areas that could cause the problem you're troubleshooting.
- If you're not quite sure what you need to isolate, divide the circuit into three sections: (1) power to the component, (2) the component itself, and (3) the ground from the component.
- Do a voltage drop test on each section. Refer to the article "Measure Voltage Drops to Pinpoint Problems" in the March '02 issue of ServiceNews.
- Once you've isolated the section with the irregular voltage drop, keep dividing that section until you've pinpointed the exact cause.
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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.