Using Multiple lookup tables in cakephp

[jay543_uk 0]

I have been learning php and have put together a simple site to track vehicle faults and repairs, but now i am trying to transfer it to cakephp framework to make it easier to work with. My problem is that i have 4 tables,

1. the fault and repair
2. a list of vehicles
3. a list of symptoms
4. a list of fault codes.

Each repair can have 3 vehicles, 3 symptoms and 3 codes relating to it so i have lookup table to link the fault/repair id to the symptoms, code and vehicles.

i have setup basic code for the vehicle , symptom and fault code models like this:

public $hasAndBelongsToMany = array(
'Fault' =>
array(
'className' => 'Fault',
'joinTable' => 'Faults_vehicles',
'foreignKey' => 'vehicle_id',
'associationForeignKey' => 'fault_id'
) 
);

and this lets me search for any faults in the faults table with a given vehicle ID, and this works fine. My problem is how can i set it up so i can do a search for faults in the Faults table with a given vehicle ID and a given symptom ID that have a matching Fault code ID.

I am very new to php and have only just started using cakephp so sorry in advance if this makes no sense at all.

thanks for your time

j