Ignition Key Resistor Input

The ignition key resistor inputs are used to determine if the correct key is being used to start the vehicle. The ignition key resistor inputs are read when the PASS-Key II module is first turned on. If the ignition key resistance value matches the value stored in the PASS-Key� II module, the starter enable relay and fuel enable outputs allow the vehicle to start. If the ignition key resistance value does not match the value stored in the PASS-Key II module, the starter enable relay and fuel enable outputs prevent the vehicle from starting for approximately three minutes.

While the vehicle is running, the ignition key resistor inputs are also read. If the PASS-Key II module reads an open, short, or incorrect resistance value for 60 consecutive seconds, the "SECURITY" indicator illuminates until the fault is corrected for the remainder of the ignition cycle and all subsequent ignition cycles. The PASS-Key II module allows the vehicle to start during this condition.