All keys lost on a 2015 Nissan Note in Nottingham. We attended on site, found two complications nobody had flagged on the phone, and still had two working keys in the customer's hand within the hour.
The call
Phone brief was a straightforward AKL: every key to a 2015 Note missing, no spare, no backup. The van loaded up with the NSN19 Lishi, a pair of blanks, the Autel IM608 PRO II, and a Battery Support Unit as a precaution, and headed out to the car.
How we replaced the keys
First job on arrival was getting into the car. With no working key the door had to be picked, so the NSN19 Lishi went in on the door lock - same tool we'd be decoding with later, just used here to lift the wafers until the cylinder turned. Once inside we could get at the OBD port and the battery.
Power was the next blocker. The battery was reading 8.3 volts. Nissan ECUs drop a diagnostic session below roughly 11, and an AKL programme draws more current than most jobs because it involves decrypting the immobiliser unit. The BSU went straight on - clamped across the terminals, it holds a steady supply through the whole programming session regardless of what the car's own battery is doing.
With power stable, we moved the Lishi onto the ignition. Same tool, different job: this time to decode rather than just pick. The tool is blade-specific - the make, model and year determine which one leaves the van. Tool in, wafers read one at a time off the gauge, bitting written down.
Partway through the decode we found a broken wafer in position 3. The customer couldn't have flagged this on the phone - with no working key to try, there's no way to feel the fault from outside the car. We noted the bitting around the broken wafer and carried on. The new keys would still turn and start; the barrel just has one less wafer than it should, which means it will drop another before long. Worth planning a barrel repair separately.
Both blades cut to the decoded bitting on the van.
Programming ran on the Autel MaxiIM IM608 PRO II via OBD. The tool authenticated against the immobiliser, wiped every key the car had learned before, and wrote the two new transponders into the approved list. The wipe is automatic on AKL - you can't selectively keep old keys - which means any missing original won't start the car.
Outcome
Two working keys in the customer's hand. Every prior key wiped from the immobiliser. Car back on the driveway the same visit, no recovery truck, no Nissan dealer booking. The broken wafer flagged for a separate barrel repair.
Lost every key to your Nissan? We come to you - Nottingham and the East Midlands, on-site AKL programming. Give us the year and model on the phone and we'll load the van, Battery Support Unit included if the car's been sat.
Published: 15th December, 2025 | Updated: 22nd April, 2026