PasslockTM Sensor

The Passlock (TM) sensor is a stationary sensor located inside the upper right side of the steering column. The Passlock (TM) sensor is part of the lock module assembly and may not be serviced separately. The Passlock (TM) sensor contains the following components:
^ Two internal Hall Effect sensors
^ One of 10 available Resister Networks

Each one of the Resistor Networks produces a unique voltage to send to the BCM. The Tamper Hall Effect sensor on located on the top. The Security Hall Effect sensor is located on the bottom. The Passlock (TM) sensor connects to the BCM via a 3 wire harness. The 3 wire harness consists of the following components:
^ The Passlock (TM) power
^ The Passlock (TM) return
^ The Passlock (TM) data

Both Hall Effect sensors monitor the magnet on the lock cylinder. The Tamper Hall Effect sensor turns ON if an intruder attempts to bypass the Passlock (TM) sensor by placing a large magnet around that area of the steering column. The Passlock (TM) sensor sends an analog voltage to the BCM via the Passlock (TM) data circuit. All of the different S/T Passlock (TM) sensors are under the same part number. You may not replace the Passlock (TM) sensor and expect the system to operate properly. You must follow specific replacement instructions.