Hello, I'm sorry nobody has given you an answer sooner, I hope the following assists you.
From the description you've given this is probably a wiring fault, I'll post the diagnostic procedure as best as I can below as it is quite long and varies depending on the results.
WARNING: To deactivate the air bag module, refer to the procedure in Section 501-20B for the correct air bag module deactivation procedure. Failure to follow this instruction may result in personal injury.
Is the resistance less than 5 ohms?YesINSTALL a new speed control actuator. REFER to: Speed Control Actuator (310-03 Speed Control, Removal and Installation).TEST the system for normal operation.NoREPAIR the circuit(s). TEST the
system for normal operation.
Hi thanks for your answer a great help although I can't open the images. I have tested the two switches on the brake pedal and the brake lights work perfectly, have removed other switch from the car and tested and works ok the question is should this switch have a live feed when the ignition is switched on as I can't get a live from the connection plug, is this dependent on gear selection position or has been suggested a pulse feed
I did say the images were missing and I can post individual images if you need them.
The brake pedal position switch should have 12 volts at ignition on at pin 2 (green/yellow) this is taken from the stop lamp switch which is fed by fuse 93 in the fuse box inside the car.
Let me know if I can assist further.