PCM / TCM Unlocking Service — Chrysler GPEC2/GPEC2A, GM T87A/T93 TCMs, GM E41/E90/E93 ECMs
Unlock locked PCMs/TCMs so tuners can read/write them — Chrysler GPEC2/2A, GM T87A/T93, GM E41/E90/E93.
Chrysler GPEC2/GPEC2A (2015+) + GM T87A/T93 TCMs + GM E41/E90/E93 ECMs
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 our Arlington workshop. USPS or UPS — your choice. Customer pays shipping to us.
Receive in 1-2 Days
Work completed within 24 hours of receipt. Ships back next business day. Return shipping included, tracking emailed.
What You Get
- Module unlocked — tuner software (HP Tuners, EFILive, DiabloSport, Hemituner) can now read + write
- Original locked-state data archived 90 days
- No tuning performed — we leave the calibration stock (you tune as you wish after)
- 24-hour bench turnaround
- Return shipping included
- Photo of completed work
Compatibility
Confirm your part matches one of the variants below before ordering. Not sure? Text us a photo and we'll verify.
Chrysler GPEC2 / GPEC2A
GM T87A TCM
GM T93 TCM (Allison)
GM E41 ECM
GM E90 ECM
GM E93 ECM
Will This Fix My Problem?
Honest answer: here's exactly what this service fixes — and what it doesn't.
Fixes:
- ✓HP Tuners / EFILive returns "vehicle not supported" or "security violation" on your PCM/TCM
- ✓Tuner software won't allow reads or writes of factory calibration
- ✓You bought a used ECM/TCM and need to unlock it before flashing your own tune
- ✓GPEC2A Hellcat owner blocked from tuning by Stellantis security update
- ✓GM dealer reflashed the module and re-locked it after a service campaign
Won't fix:
- ✗Hardware-failed PCM (we unlock, not repair internal damage)
- ✗Tuning itself — we unlock, you tune (or work with a tuner)
- ✗Modules outside the supported list (text us to confirm before shipping)
Shipping Instructions
These details are also emailed to you the moment your payment clears.
You pay shipping to us. We cover return shipping back. Ship just the PCM/TCM — no need to send the key, donor, or other modules.
What to include in your box
- The PCM, ECM, or TCM to be unlocked
- Printed order confirmation
- Module part number from the case label
- A note saying which tuning platform you intend to use (HP Tuners, EFILive, etc.) — helps us verify the unlock matches your software
- Your name, return address, and phone number
Ship to
Auto Module Lab
1168 W Pioneer Parkway
Arlington, TX 76013
Frequently Asked
Still have a question? Text us — replies in minutes.
Do you tune the module too?
Will the unlock be detected by the dealer?
What's the difference between this and your "Stock Re-Programming" service?
My module isn't on the list — can you unlock it?
Is this legal?
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Where we serve PCM Unlocking (Chrysler GPEC2/2A, GM T87A/T93, E41/E90/E93)
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.