2005 Chrysler Pacifica 3.5 V6, has a code that says bad crank sensor, got a new one, want to know the location of the crank sensor for that model

question edited for clarity.
Question moved to model category.

No, it just has the Integrated Power Module in the engine bay.

Chrysler Pacifica (CS; 2004-2008) fuses

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In this article, you will find fuse box diagrams of Chrysler Pacifica 2004, 2005, 2006, 2007 and 2008, get information about the location of the fuse panels ...

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  Fuse Box Diagram Chrysler

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  Fuse box diagram (location and assignment of electrical fuses) for Chrysler 300 / 300C (Mk1/LX; 2005, 2006, 2007, 2008, 2009, 2010).

Chrysler Pacifica (crossover) (2003-2007) fuse box ...

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An Integrated Power Module is located in the engine compartment near the battery. This center contains maxi fuses, mini fuses and relays. A label that ...

Chrysler Pacifica 2005 Fuse Box/Block Circuit Breaker ...

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Apr 6, 2022 - Chrysler Pacifica 2005 Fuse Box/Block Circuit Breaker Diagram ; 2, C51 18LB/BR, Fused Rear Booster Fan Relay Output ; 3, W4 12BR/OR, Front

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I think you may be OBD code 18, not ABS. In that case, code 18 refers to spark output circuit is open. You will need to check:
1. your crank or cam sensor to make sure it is outputting a signal.
2. your spark coil (make sure it is not defective).
3. a broken electrical wire from either the crank sensor or cam sensor to your vehicle computer, or a broken wire going from your vehicle computer (CPU) to your spark coil.

check that if it has a harmonic balancer that the balancer is not loose. Check for dirt around the crank position sensor

thje po420 need to monitor o2 sensors to verify if you have a bad sensor or bad catalitic converter
the po522 oil presure sending unit

They can still be bad without DTCs - but the statement that there are 5 is absurd. If you have a V6 and there are two separate exhaust pipes you'll need 4.

Close to the fan motor there is a multiple resistor that feeds the fan motor. Check that.

This particular car has the tire pressure monitoring system on it with sensors in the wheels. If the sensor was messed up when it was reenstalled on the new rim it would throw this code. Some vehicles have the sensors with specific mount locations and if one of the sensors was reenstalled in the wrong location it could cause this fault. You can take it to the dealer and have them check the sensors and see if all are reading properly and are in the right locations.

you may not always have to replace sensors, but you will have to change the airbag module (usually under front seat, sometimes in middle of dash) To remove the passenger airbag you have to take out the dash.

Jay from Ma,
You have it backwards the rear three are accessable with the front three being under the intake. To remove the intake simply remove throttle body and aproxamently 15 other bolts.