cam position sensor code came up on my code reader, car turns over but won't start. Is it more than just a sensor? How can I look at my timing belt to check it?

only mechanic can help u to check the timing belt n help you to set it but it under the cover of the plug after and u will see it if the plug n coil cover is remove. But have you check all the earth point of the engine cus if the earth do nt contact very well the machine will be bringing sensor also and i think(APP sensor)is wat the machine will call the earth