Lexus Denso Engine ECU (ECM) Clone — Used/Donor ECU Swap (ES/IS/GS/RX/LS)
Replacement Lexus ECM that cranks but never starts? We clone your original Denso engine ECU data onto the donor so it runs in your car.
Sending several modules? Add them all — one box, one return-shipping charge.
Denso engine ECUs (ECM/PCM) across the Lexus ES, IS, GS, RX and LS lineup, gas and many hybrid platforms.
How It Works
Three simple steps. Hundreds of mail-in jobs completed for shops, locksmiths, and DIY pros.
Pay & Get Address
Click "Order Now", pay securely via Stripe. We email shipping address + instructions within minutes.
Ship Your Module
Pack per the instructions and ship to Arlington. USPS goes to our PO Box; UPS and FedEx must use the street address. Customer pays shipping to us.
Receive in 1-2 Days
Work completed within 24 hours of receipt. Ships back next business day at the return speed you chose at checkout — standard to overnight. Tracking emailed.
What You Get
- Your original Denso ECU data cloned onto the donor ECM
- VIN and immobilizer data matched to your vehicle
- Donor ECU returned ready to install plug-and-play
- Existing keys continue to work — no dealer relearn
- No tow, no dealer programming appointment
- Bench-verified before it ships back
Compatibility
Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.
Lexus sedans
Lexus SUVs / crossovers
ECU / ECM families
Will This Fix My Problem?
Honest answer: here's exactly what this service fixes — and what it doesn't.
Fixes:
- ✓No-start after fitting a used or salvage-yard Denso ECM
- ✓Failed engine ECU needing a like-for-like donor swap
- ✓Immobilizer mismatch / key-not-recognized after an ECU swap
- ✓Donor ECU with the wrong VIN or immobilizer data
- ✓Keeping your original keys while replacing a dead Denso ECM
Won't fix:
- ✗Emissions or readiness-monitor defeat - we do not delete cats, EGR, or O2 monitors
- ✗Internal hardware faults on a physically failed donor ECU
- ✗Engine mechanical, sensor, or wiring problems unrelated to the ECU
- ✗Tuning, horsepower, or performance remaps
Shipping Instructions
These details are also emailed to you the moment your payment clears.
Mail your original Denso ECU and the matching donor ECM together to PO Box 120241, Arlington TX 76012 if you ship USPS — or 1009 Oakwood Ln # 120241, Arlington TX 76012 if you ship UPS or FedEx (UPS and FedEx cannot deliver to a PO Box). We clone, verify and return the donor within 24 hours; return shipping is selected and paid at checkout (Standard $24.95, UPS 2-Day $54.95, or UPS overnight $94.95).
What to include in your box
- Your original Lexus Denso ECU, labeled ORIGINAL
- The donor/used ECM (matching 89661 part family), labeled DONOR
- A note with your VIN and year/model
- Your name, return address, and contact info
- Order number or receipt inside the box
Ship to
Auto Module Lab
If shipping USPS
PO Box 120241
Arlington, TX 76012
If shipping UPS or FedEx
1009 Oakwood Ln # 120241
Arlington, TX 76012
Both shipping labels — to the lab and back to you — are purchased the moment you order. Your prepaid inbound label (already addressed) arrives by email; the return ships on the speed you chose at checkout.
Need to perform this job remotely?
Get an Auto Module Lab Remote Programming Kit and have our technicians program supported vehicles from your shop — the car stays on your lift and nothing gets posted.
Buy the interface once — program with us anytime. Supported procedures vary by vehicle, module, OEM software and security requirements.
Frequently Asked
Still have a question? Text us — replies in minutes.
Why won't a used Lexus ECU just start my car?
Do my keys still work after the clone?
What do I send you?
Can you clone if my original ECU is completely dead?
Will you delete emissions equipment or tune the ECU?
Related Services
Other bench services for the same brand or use case.
Toyota/Lexus Denso IMMO Off
Permanently remove immobilizer from Toyota + Lexus Denso ECUs — bench fix for swapped ECU, lost keys, or failed pairing.
Toyota/Lexus Certification ECU Clone
Push-to-start Toyota or Lexus that stopped recognizing its keys? We clone your Certification ECU (ID box) to a donor so the car starts again.
Toyota/Lexus Smart-Key AKL & Key Generation
Locked out of a push-to-start Toyota or Lexus with no working key? Mail in your Smart-Key / Certification ECU and we read the EEPROM on the bench and generate a working smart key so the car starts — no dealer, no tow.
Where we serve Lexus Denso ECU Clone
Mail-in means nationwide. See your state, metro, or specific vehicle:
Ready to ship?
Pay now, get the shipping address by email, drop it in the mail. Your module is back on your bench within a week.