i replace the starter relay, the starter, but it will not crank.
Help

 

welcome to the forum. when you turn the key to start, is there any sound with the starter, if there is a werring sound, the flywheel tooth may be damaged. if there is no sound, try to see if the crankshaft will turn, if the crankshaft does not turn possible engine locked up/frozen. need more info to try to determine what has happened or to assist. sorry.

 

Did you try putting the gear selector in neutral and cranking engine?

If that did not work ...
Do you know how to do a starter relay by pass test?
Youtube have many videos on no crank, no start.
Relay has two sides. One side is the control side.
When you turn your key to crank the engine, the control side of the relay is activated. (Pins 85 and 86)
When control side is activated, the other side, load side is turned on (pins 87 and 30)
Using a test light or multi-meter, probe the pins for voltage (from battery ground)
Ground side switched relays will have two pins that have power.
One on control side and the other for load side.

If you can identify pins 87 and 30 then put a jumper across.
If you can not properly identify the pins then do not try this
Be aware the wire may get hot. The starter motor should engage.
Please note that pins 85 and 86 are control and one goes to the ECU.
Danger. Do not short the control side or you will fry the ECU.

This by pass test will tell you whether the issue is on the load of the circuit or control side.

Another way to see if the starter motor is working is to short the post on the starter motor to the solenoid.
One cable is from the battery to the starter motor. The other wire is from the ignition key to the solenoid.
When cranking engine, power is applied to the ignition wire to solenoid.
Power is on the cable from battery to starter motor at all times.