22 Jul 2 Comments Sue FL2 Problems, FL2 Tips & Advice , , ,
Freelander 2 Shift Interlock
The shift interlock solenoid in the Freelander 2 is located on the LH side of the selector lever assembly. The solenoid operates two locking levers which engage with the lever mechanism and lock it in the Park (P) and Neutral (N) positions. When the ignition is off, the solenoid is de-energised, locking the selector lever in the Park (P) position. If the Freelander 2 selector lever is in any position other than Park (P), the remote handset cannot be removed from the start control module until the lever is moved to the Park (P) position.
The shift interlock solenoid has a mechanical connection to the sensor module using a sensor arm. Movement of the solenoid is transferred via the sensor arm to the sensor module which detects the movement using an optical sensor. The sensor arm movement provides a confirmation to the sensor module that the solenoid is in its interlocked position. The sensor arm has a ratchet adjustment for alignment of the optical sensor and is factory set and must not be adjusted.
The shift interlock solenoid locks the selector lever in the park position or the neutral position to prevent inadvertent selections on the selector lever. The interlock is released when the ignition is on and the driver presses the brake pedal. A signal from the brake switch is passed on the high speed Controller Area Network (CAN) bus to the TCM and is then passed on the LIN bus to the sensor module. On receipt of this signal the sensor module logic energises the solenoid if in the Park (P) position or de-energises the solenoid if in the Neutral (N) position, releasing the interlock mechanism.
If the Freelander 2 selector lever is left in the ‘N’ position for more than 3 seconds, the solenoid will be energised and the selector lever will become locked in the ‘N’ position. To move the selector lever from the ‘N’ position in this condition, the footbrake must be applied. This prevents the selector lever from being moved to the ‘D’ or ‘R’ position unintentionally and the application of the brakes also prevents the vehicle ‘creeping’ when the gear is engaged. Movement of the selector lever from the ‘P’ or ‘N’ positions is also prevented if the TCM senses the engine speed is above 2500 rev/min, even if the brake pedal is depressed.
If a fault occurs with the shift interlock solenoid, the sensor module, the brake switch or associated wiring, an emergency release lever is provided to disconnect the interlock mechanism. The emergency release lever can be accessed by using a tool to remove the selector lever trim finisher from the floor console. The finisher can be lifted to gain access to the release lever which is located at the front the selector lever assembly and is coloured yellow for identification.

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