Suzuki 33920-56B3 33920-56B3 Suzuki ECU 33920-56B30 56B40
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Suzuki 33920‑56B3 is an engine control unit used in early ’90s Suzuki Sidekick/Geo Tracker models. Common failure modes include a burned or tripped main fuse (often the 15 A power feed), shorted high‑current traces on the PCB, and corrupted flash memory that produces persistent fault codes such as “ECU power failure” or “sensor mismatch.” First‑check diagnostics: verify 12 V input to the ECU’s Vcc pin and confirm proper ground continuity; inspect the board for visible burn marks or swollen electrolytic capacitors; and read any stored DTCs via a compatible OBD‑I interface to isolate sensor or communication faults.[oss-gpt-20b] |
Need your Suzuki repaired or tested?
We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
- ⚙️ Fast Diagnostics – Same-day evaluation available
- 🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
- 🧰 Expert Technicians – Decades of board-level experience
- ✅ 1-Year Warranty – Every repair fully guaranteed
📞 Call Now: 1 (336) 969-0110
Free Estimates • Industrial-grade testing • Nationwide Service
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[oss-gpt-20b]We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.
- 🔧 Board-level diagnostics (shorts, VRM, memory, fan, thermals)
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- ♻️ Option: donate failed cards for parts → we refurb + resell
- ✅ 1-Year warranty on completed repairs
Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
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Suzuki 33920-56B3 33920-56B3 Suzuki ECU 33920-56B30 56B40Contact Us
🚑Shop Location🛠️
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
📞Phone
📦Mailing Address🚛
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.