PDA

View Full Version : Code P1698

ColoradoRaptor
September 26th, 2008, 18:43
Code P1698 - No CCD/J1850 Message From TCM. No CCD/J1850 messages received from the electronic transmission control module (EATX) or the Aisin transmission controller.

A few weeks ago my check engine light & key light came on. Went to Autozone to have the ECM read and the damn light would not come back on and the reader could not pull any codes. The check engine did not come on again until last night and it is not staying on it will come on for a while then go out. I did manage to get the code read at Autozone today though!!

Any input here would be very helpfull!! Just did a search and everything I have read points to CPS?!?!? Can this be right?

I am getting a little worried here as I do not have alot of money to throw at the heep now due to my divorce!!
Kittrell
September 26th, 2008, 18:59
More like TCU or PCM
ColoradoRaptor
September 26th, 2008, 19:13
More like TCU or PCM

That is what i am afraid of!! Would the ECM or TCM from my wrecked 98 work in the 00?
Dundy
September 26th, 2008, 20:11
probably not with the coil on plug ignition system.
timmy80930
September 26th, 2008, 20:16
I had that same issue with my 1990 Ford F-350 check engine light would come and go off,it turned out it was the O2 Sensor when I finally found it,Maybe?
Frank Z
September 26th, 2008, 21:48
The PCM Vin Number in the must also be the same as the one stored by the gauge cluster. All replacement PCM/s (OBD2) must be re-flashed with the correct VIN. Dealer and NAPA are the only two places I found locally that can do it.
ColoradoRaptor
September 26th, 2008, 21:55
Is that for the PCM only or will I have to get the TCM reflashed as well? I was thinking about just swapping TCM's.
Frank Z
September 26th, 2008, 21:58
I don't think the you need to do anything other than install a TCU from th same year XJ as the current one you have. I know that I could not use a 98 TCU in my 97 heep.
ColoradoRaptor
September 26th, 2008, 22:01
Crap!! There goes that idea..... Any idea how much a TCM will cost?
Frank Z
September 26th, 2008, 22:03
No, but then again I've never heard of one actually going bad either.
ColoradoRaptor
September 26th, 2008, 22:15
I am going to check, clean and reconnect the harness tomorrow. hopfully that will resolve the problem. I have never heard of a TCM going bad either....
Frank Z
September 26th, 2008, 22:17
Pull and clean your CPS while you're workin' on the heep. The range selector signal goes through it.
ColoradoRaptor
September 26th, 2008, 22:20
Pull and clean your CPS while you're workin' on the heep. The range selector signal goes through it.

Did not know that... Thanks!! Will do!!:cheers: Hell, maybe I will just replace it if it is cheap enough...
Frank Z
September 26th, 2008, 22:22
Did not know that... Thanks!! Will do!!:cheers: Hell, maybe I will just replace it if it is cheap enough...It ain't cheep! $2-300 bones for a new one.
ColoradoRaptor
September 26th, 2008, 22:30
It ain't cheep! $2-300 bones for a new one.

:shocked: Looks like I will be goin to the junk yard........... If I decide to replace it.
Frank Z
September 26th, 2008, 22:34
Clean it out with contact cleaner, add some dielectric grease...good for another 5 years or so.
ColoradoRaptor
September 26th, 2008, 22:37
Clean it out with contact cleaner, add some dielectric grease...good for another 5 years or so.

Just bought both, thought it would come in handy....just not this soon..:laugh:
ColoradoRaptor
September 27th, 2008, 14:33
Well, it seems to be getting worse..... Now my volt meter is acting really wierd, It will peg at 19volts for a while then settle back down to 14. What the heck is goin on here?:huh: