2000 Nissan Altima Won't Crank
The Theft Deterrent system is another issue. You need a good elecrical tech to check it out. The key chip is nothing more than a resister than matches with the TD module to allow thew car to start. It controls the starter through it's own relay and the fuel injection through the module.
There are two fuses to the module, one in the relay center (under the right side of the dash) I think it is fuse 8 and another in the inside fuse box, I think it is fuse 4.
Good Luck
Suggested Repair
The starter is under the engine on the transmission side; have a technician test across the starter solenoid. Also have the theft-deterrent system checked, including the key-chip resistor and its module, relay, and fuses (possibly fuse 8 in the relay center under the right side of the dash and fuse 4 in the interior fuse box).
Conversation Summary
A 2000 Nissan Altima with about 94,768 miles has power to the lights but will not crank. The owner suspects the starter or a failed key chip. The expert located the starter under the engine on the transmission side and advised a technician test of the starter solenoid. The expert also explained that the key chip is a resistor matched to the theft-deterrent module, which can control the starter relay and fuel injection, and suggested checking two related fuses.
