The hood pin switch is a very important safety feature. The 555l will also provide when necessary a negative signal to the bulb check wire.

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Dei 555l wiring diagram. Page 2 in this case it would be necessary to remove the already programmed key from the 556u module to reprogram it. Wiring diagrams are available on the website in order to assist with the wiring of the relays. You dont even need to measure the resistance with a multimeter just wire it up start the truck and it automatically learns. The vehicle must be started within 15 seconds or the module will automatically exit the learn routine. The 555l has no effect on the. The 555l provides easy interfacing while maintaining the integrity of the vehicles anti theft system.
Crimestopper and a few other companies make auto learning passlock bypasses and the new thing out is the databus wire modules. This is a critical component that. It will prevent the remote starter from operating if the hood of the vehicle is open. 3 pin harness 6 pin harness product description 556u immobilizer interface. Page 1 p p r r o o d d u u c c t t d d e e s s c c r r i i p p t t i i o o n n the 556u immobilizer interface module is used when installing remote start products in vehicles equipped with an rf radio frequency based immobilizer system. I bought an acdelco remote start interface and a dei 555l passlock interface.
Earlier we ran the hood pin and tach wires into the engine compartment. Please note that the instructions outlined in the standard immobilizer interfacesection describe an immobilizer. Start the vehicle and keep it running for at least 10 seconds. Refer to alternate wiring diagram. I installed one years ago on a 97 maxima but with the addition of the passlock it looks like a whole new beast. If you use a dei 555l passlock bypass its self learning.
Hoping to install it soon but when i got them and opened them up its looking like ill be needing some guidance. Passlock i wiring diagram the module must first be programmed before operation use the following procedure. The 555l interfaces with the passlock systems by providing the proper resistance code r code at the appropri ate time. Cycle the ignition onoff 2 times.