I gat 3 cods P0129, P0685 and P0688 and then cam the "enable" I don't start the engine. What is the problem? Can you help me?

Question edited for clarity. Please always quote DTC Codes in full. '129' is not the same as 'P0129'. Single numerical codes are usually computer communication codes.
Question moved to model category.

When you did all this work, did you disconnect the battery?
Did you reset the security system and engine immobilizer?
Is the anti-theft light flashing, flashing fast or on steady?

Help and videos

https://www.google.com/search?q=2006+Dodge+Grand+Caravan+3.3+turns+over+but+won%27t+start

..

Question edited for clarity.
Question moved to model category.

These are your codes. Your 'new' alternator is still faulty. You need an auto electrician..

https://www.google.com/search?q=auto+electrician+near+me

P0129 Barometric Pressure Too Low

OBD-Codes.com https://www.obd-codes.com > p0129
When you find a P0129 code stored in your OBD-II equipped vehicle, it means that the powertrain control module (PCM) has detected a low barometric pressure ...

P0508 Idle Air Control Circuit Low

OBD-Codes.com https://www.obd-codes.com > p0508
When your OBD-II equipped vehicle exhibits a malfunction indicator lamp (MIL) and a stored code P0508, it means that the powertrain control module (PCM) has ...

Dodge Stratus P0622: Meaning, Causes + Diagnosis - 700R4

700r4transmissionhq.com https://www.700r4transmissionhq.com > p0622-dodge...
Sep 22, 2021 - This code indicates the generator field coil control circuit is malfunctioning. It can be a challenge to diagnose. P0622 Meaning: Generator ...

P0688 ECM/PCM Power Relay Sense Circuit Open

OBD-Codes.com https://www.obd-codes.com > p0688
When a code P0688 is stored, it means that the powertrain control module (PCM), has detected an abnormality in the relay which supplies it with voltage.

The service and repair manual with diagram will help you to ;ocate and fix the problem on your own and you will get the manual from the given link https://toolsnyou.com

Best Manuals I suggest you try one of those instant download manuals. My nephew bought one for me when my car broke and we could fix it all by ourselves with the manual costing $10. This website reliable-store.com is very good for this.
?Try it.

P0685 CHRYSLER - Auto Shutdown Relay Control Circuit Failure

Short or open in Auto Shutdown (ASD) relay circuit
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
- ASD relay circuit is open or shorted
- Failed Auto Shutdown relay
- Failed ECM
Tech Notes
Check all the ECM fuses, if the fuses are OK try replacing the ASD relay.

P0688 CHRYSLER - Auto Shutdown Relay Control Circuit Low

The Front Control Module (FCM) has detected the supply voltage below an acceptable value
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
Possible Causes
- ASD relay circuit is open or shorted
- Failed Auto Shutdown relay
- Failed ECM
Tech Notes
Check all the ECM fuses, if the fuses are OK try replacing the ASD relay.

It is very possible that the relay had just shorted out and over heated.But you would want to look closely at the wires under the fuse block to make sure they did not over heat and cause the insulation to melt away.Replace # 37 with a new one and try it ,if everything else looks ok.

code - po442=evap leak medium detected

code-po456=evap leak small detected
look at fuel cap or leaks in rubber hoses

I'm not sure about the codes, but I can tell you to NEVER wash your motor with an up hill spray,, chances are you got the plugs wet, and inside the plug caps, take them off and use a high prssure air stream to dry them out

Thanks, Terry

https://www.autocodes.com/p0688_jeep.html
P0685 AUTO SHUTDOWN RELAY CONTROL CIRCUIT P0688 AUTO

P0685 DODGE - Auto Shutdown Relay Control Circuit Failure
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)

Possible causes - ASD relay circuit is open or shorted
- Failed Auto Shutdown relay
- Failed ECM
Tech notes Check all the ECM fuses, if the fuses are OK try replacing the ASD relay. P0685 DODGE Description Short or open in Auto Shutdown (ASD) relay circuit

P0688 DODGE - Auto Shutdown Relay Control Circuit Low
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)

Possible causes - ASD relay circuit is open or shorted
- Failed Auto Shutdown relay
- Failed ECM
Tech notes Check all the ECM fuses, if the fuses are OK try replacing the ASD relay. P0688 DODGE Description The Front Control Module (FCM) has detected the supply voltage below an acceptable value