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PCM replacement

 
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  #1 (permalink)  
Old 19 Jan 2012, 05:18 pm
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Default PCM replacement

ok, so i've got a new PCM on the way.
everyone keeps saying it's really easy to replace. i checked it out a bit and it doesn't seem super easy. has anyone done this before? would anyone be willing to give me a quick step by step? really appreciate you guys and this forum by the way.
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Old 19 Jan 2012, 05:45 pm
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Default Re: PCM replacement

According to Haynes:

1. Disconnect the negative battery cable.
2. Detach the wiring harness clip from the PCM.
3. Remove the 3 retaining bolts holding the PCM.
4. Move the PCM away from the firewall so you can access the electrical connections.
5. Release the locking tabs on the sides of the connectors.
6. Pull the electrical connector off the PCM.

Caution: avoid any static electricity by grounding yourself to to the body of the car.
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Old 19 Jan 2012, 06:05 pm
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Default Re: PCM replacement

Couple of real quick things, has your new PCM been flashed with your VIN? and if you have an Auto (ATX) you need to do a quick learn yourself or a dealer can do it. This is crucial !!!! I have the quick learn somewhere if you need it, just let me know and I will hunt it up. It take a dealer about 10-15 minutes to do it so don't let them tell you it is a really complicated thing. Steve
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Old 20 Jan 2012, 12:29 pm
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Default Re: PCM replacement

Quote:
Originally Posted by PT_Panel View Post
Couple of real quick things, has your new PCM been flashed with your VIN? and if you have an Auto (ATX) you need to do a quick learn yourself or a dealer can do it. This is crucial !!!! I have the quick learn somewhere if you need it, just let me know and I will hunt it up. It take a dealer about 10-15 minutes to do it so don't let them tell you it is a really complicated thing. Steve
thanks guys.
yup flashed to VIN and it's a standard so i should be good to go.
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Old 20 Jan 2012, 10:16 pm
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Default Re: PCM replacement

Sounds like it
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Old 30 Jan 2012, 08:04 pm
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Join Date: Dec 2010
Location: Terminal City
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Default Re: PCM replacement

well, the computer came today.
you were right, piece of cake to switch!

then i got error code: P1684 Driver 5 Line 4
also the red button ACS (i think) is flashing on the sunroof.
driving pretty smooth though.
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Old 30 Jan 2012, 08:33 pm
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Default Re: PCM replacement

P1684 does not indicate a problem; it's only a status, which indicates that the PCM memory has been cleared within the last 50 ignition cycles.
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Old 01 Feb 2012, 12:00 am
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Default Re: PCM replacement

Please help out! My 02 Dream Cruiser is/has been at the mechanics since early January! First a water pump replacement, then it was acting funny.....lunging if you will on the freeway, got it to the mechanic and it died! Got a new PCM, cleared error codes, car still refuses to start. Mechanic says it's like the computer is sending the signals to the injectors but the injectors are not receiving it... my car is an automatic, what is the "Auto (ATX) you need to do a quick learn yourself or a dealer can do it."??? Can this be the root of my car evil??
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