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Error codes 1684 and 1694

 
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Old 26 Dec 2014, 10:24 pm
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Default Error codes 1684 and 1694

My daughter has a 2002 PT cruiser. Her boyfriend put car in reverse and battery died. Charged battery and now the car will not shift right, brake lights were on, speedometer stopped working and will not shift out of first gear. We have ran codes and replaced input and output speed sensors, then got these codes and replaced a relay. Initial running of codes said that it was the tcm but when I looked on this forum that is not what they meant. Can someone tell me what these mean and how I can fix them. She really needs a car. When took to garage they said it was my catalytic converter that was bad. Please help. Thank you.
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Old 26 Dec 2014, 10:52 pm
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Default Re: Error codes 1684 and 1694

p1694:No messages received from the powertrain control module-Aisin transmission. not sure what that means. maybe the tcm took a dump.

p1684: just means battery has been disconnected. no problem here.

hopefully someone with more knowledge will chime in. good luck.
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Old 26 Dec 2014, 11:08 pm
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Default Re: Error codes 1684 and 1694

The shop you mentioned should be avoided if they were basing there diagnoses on this info.
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Old 27 Dec 2014, 12:19 am
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Default Re: Error codes 1684 and 1694

Quote:
Originally Posted by HartRice View Post
My daughter has a 2002 PT cruiser. Her boyfriend put car in reverse and battery died. Charged battery and now the car will not shift right, brake lights were on, speedometer stopped working and will not shift out of first gear. .....
What does that mean???
Put car in reverse and engine died and battery was dead???

Get battery and charging system checked - there are places that'll do it for free.
Pull transmission stick - clear an pinkish? At corret level?
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Old 27 Dec 2014, 04:41 pm
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Default Re: Error codes 1684 and 1694

P1694 Tachometer Circuit High Voltage

So this is what the code is and says on the sticky note. Yes we replaced the battery. It was junk. Had codes for speed sensor so replaced those. Catalytic converter was plugged, fixed that. It still will not shift. Have no speedometer. Have found an ABS speed sensor and am wondering if it could be this or if it is the TCM. Do not want to spend hundreds of dollars on TCM if that is not what it is. Tranny fluid has been checked. Can not get a straight answer from a garage to save my soul. Thanks.
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Old 27 Dec 2014, 04:49 pm
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Default Re: Error codes 1684 and 1694

Anyone know what the code P1698 means? That is what is showing up now. I am so frustrated with this.
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Old 27 Dec 2014, 05:09 pm
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Default Re: Error codes 1684 and 1694

just looked it up.

The P1698 code means that no digital data is being received by the powertrain controller from the transmission control module.

I don't know if the tcm is faulty or if there's a break in the wires going to the tcm.

at this stage, if it were me, I would have it diagnosed at a Chrysler repair center.
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Old 29 Dec 2014, 03:16 am
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Default Re: Error codes 1684 and 1694

With trouble code P1698 I would suggest checking all the fuses to make sure you have power going to all the computers in your PT Cruiser. When one of the computers loses communication the other computers in your PT Cruiser tells you that you have loss communication with one of the computers with P1698.

Can you tell us what all is not working on your PT Cruiser?
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