1999 Nissan Pathfinder
Key Replacement - Save vs Dealer in Ventura County

1999 Nissan Pathfinder Transponder Key Replacement - Fast, Affordable & Professional

Got a call from a guy in the Indian Hills Ridge area of Simi Valley. His 1999 Pathfinder had one key left and it was getting rough. The blade was worn thin on the cuts, the plastic bow had cracked and been superglued back together twice, and the transponder chip inside was basically riding on hope.

He told me the engine had started cutting out mid-crank a few times that week. It would catch, run for a second, then die. Classic NATS rejection pattern. The immobilizer antenna ring around the ignition cylinder was reading the ID46 chip intermittently because the cracked housing let the chip shift position every time he turned the key.

I cut a fresh NI02 blade on my Condor using his ignition as the read source since the original key's cuts were too worn to trust as a copy. Cloned the PCF7936 chip from his old key to a new T5 glass wedge transponder in the replacement head. Whole job took about twenty minutes on his driveway.

The part he cared about: his Pathfinder started first turn, every turn, five tests in a row. No crank-and-die. No security light.

He asked what a dealer would have charged. I told him they would have wanted the vehicle towed in and probably quoted him for a full NATS reset with a new key ordered through parts. He just nodded and said he was glad he called first.

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