Diagnostics

Auto Diagnostics No Guesswork.

Advanced computer diagnostics in Palmyra, NJ to pinpoint the real issue — so you only pay to fix what's actually wrong.

What's Included

Complete auto diagnostics service

  • Check engine light diagnosis and code reading
  • ABS, airbag (SRS), and traction control diagnostics
  • Live data and freeze-frame analysis
  • Electrical and wiring diagnostics
  • Drivability, stalling, and misfire troubleshooting
  • Pre-purchase vehicle inspections
Warning Signs

When to bring it in

  • Check engine, ABS, or airbag light is on
  • Engine hesitates, stalls, or misfires
  • Unusual noises, smells, or vibrations
  • Drop in fuel economy with no obvious cause
  • Another shop quoted a major repair you want verified
Why SG Automotive

Honest work, fair pricing, every time.

Reading a code is easy. Knowing what to do about it takes experience. Our technicians interpret the data, verify the cause, and explain exactly what your vehicle actually needs — and what it doesn't.

Workmanship guarantee on every repair.
Frequently Asked

Auto Diagnostics questions

What does a diagnostic test actually do?+

We connect professional scan tools to your vehicle's computer systems to read trouble codes, live sensor data, and freeze-frame information. Then a technician interprets that data to identify the actual root cause — not just the code.

Why is my check engine light on?+

There are hundreds of possible reasons — from a loose gas cap to a failing oxygen sensor to a serious engine issue. We diagnose the real cause and explain it clearly before recommending any repair.

Can you diagnose intermittent issues?+

Yes. We use live data logging and road testing to catch intermittent issues. If we can't reproduce it on the first visit, we'll work with you to capture it.

How much does a diagnostic cost?+

We charge a fair, up-front diagnostic fee based on the complexity of the issue. You'll know the cost before we start, and we'll give you a clear written estimate for any repairs.

Is it safe to drive with the check engine light on?+

A solid check engine light usually means it's safe to drive briefly to the shop, but a flashing light means stop driving and call us at 856-543-4151 — continuing can cause serious engine damage.

Ready to schedule your diagnostics?

Call us or request an appointment online. We'll take care of the rest.

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