Does the clunking happen when you hit bumps driving or when you turn the steering wheel back and forth ?
The reason I asked was if it does it when you are turning the wheel, its possible its your lower tie rod.
If it does it while driving and hits bumps, then I would think its the control arm bushings.
Dont think you can remove those bushings without disassembly of part of the suspension.
Heres a link with the low down.
Lower Control Arm/Suspension
On the ETS and Check Engine lights , you will need to get it scanned with an ABS capable scanner then post the codes.
We can most likly tell you what it is.
Though I'd suspect its your wheel speed sensor, but you wont know which one untill you read the DTC thats stored.