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We'd need to know more about how you have assessed these components, but something in that chain is still faulty. The symptoms you describe are classic, the sound of the starter solenoid pulling in, and arise almost always from
- a dying battery which cannot hold a full charge, but which can still pull in the starter solenoid, run the radio etc, but not crank the motor
- worn starter solenoid main contacts which cannot close the supply circuit from battery to starter motor
- a dead segment in the starter motor armature which is preventing it from rotating
- a bad ground, usually between motor body and chassis
You have mentioned all these things I know, but that click-click is a first step which still points the same way..
One way to narrow it is to try jump starting your motor from a known good battery or another car with running motor, taking precautions to avoid frying your electronics. If it starts, it is a bad battery you have. If it just clicks, then one of the other causes.
Even though you think the relay is OK, try replacing it - relay contacts wear is a common problem and is difficult to diagnose. You can also check the voltage at a couple of points when trying to start it with the ignition switch - for example, before and after the relay. If the voltage is OK at the relay signal line and the switched voltage at the starter is low, the relay is faulty. If the voltage drops at the signal line, the ignition switch is faulty. There may also be wiring problem, which will mean tracing the signal and switched lines to see is there is a poor connection at any connector in these lines.
the clicking noise is the starter relay engaging, you say it starts w/jumpercables-starter is ok, either alt is not charging the battery or the battery can not hold a charge anymore any auto parts store can check it and tell you witch is bad
bleed the hydrolic lines empty buy 2 can of hydrolic fluids from lexus i think one should do it dough but u can buy 2 just in case replace fluids and u should be fine if not you can check ure accumulators or the sensers that can cause a bouncy ride too