Skyline HICAS Diagnostics

How to enter HICAS diagnostic mode on a Nissan Skyline R33 Procedure: Switch ignition off, transmission in neutral or auto in Park. Start engine Very quickly (with a couple of seconds), turn the steering wheel left and right about 20 degrees from centre five times, and then pump the brakes five times, then press the brake pedal once more - this will enter diagnostic mode. Drive forwards or backwards about 5 metres at a speed less than 10k/ph, this will enter full diagnostic mode.