I need help identifying a SMD diode from a Body Control Module (Smart Entry Control Module) from a 2003 Nissan Pathfinder. This diode is part of the circuit that drives a realy. It is inbetween GND and the Drain of a N Channel MOFET. The only markings on it are as follows: A4 V2 6 (or V2 G can't tell).
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Nelson, not positive but on a bit older models it was above drivers right knee under dash. You could call the Nissan service dept. which can verify.
Check the attached link,instruction and guides, Good luck
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An immobilizer is an electronic device fitted to an automobile which prevents the engine from running unless the correct key is present. This prevents the car from being hot wired after entry has been achieved.
The microcircuit inside the key is activated by a small electromagnetic field which induces current to flow inside the key body, which in turn broadcasts a unique binary code which is read by the automobile's Engine Control Module (ECM). When the ECM determines that the coded key is both current and valid, the ECM activates the fuel-injection sequence.
The immobilizer function of the Nissan Vehicle Immobilizer System (NVIS) or Nissan Anti-Theft System (NATS) consists of the following:
- NATS ignition key
- NATS antenna amp. located in the ignition key cylinder
- Body control module (BCM) or (IMMU)
- Engine Control Module (ECM)
- Security indicator lamp
The 2003 Expedition smart junction box was formerly called a GEM module in previous years. It has relays that control your keyless entry codes, the relays that control the dome lights and the delayed radio shutoff as well as other functions.
On a 2003 Expedition, the sjb (smart junction box) is located on the inside passenger's side kick panel below the glove box. It is most easily accessed by opening the glove box and squezzing the limiting tabs on each side so the glove box can open fully and tilt forward. It is approximately 6" long by 4" tall and about 1 3/4" thick. The part number on the label will be 2L1T-15K602-AN or similar for 2003 Expeditions.