Engine/Transmission (1998.5 - 2002) Help with codes found on 02

[ILIANBG]

The Check Eng. Light came on, found these codes:

P 1693

P 1694

P 1698

P ECU

P PCU

Does anybody know what are those and what needs to be done? I dropped the truck at the dealer, as did not know how serious those are. I hope it has nothing to do with the VP-44. I'm waiting for a call from the dealer to let me know what's wrong. I just want to be prepared. Thanks. It's a wonderful site.

 

[ScottLewis]

My Innova manual shows the following:



P 1693 "A companion DTC was set in both ECM and PCM"

P 1694 "No CCD message from PCM- Aisin transmission"

P 1698 "No CCD message from TCM"

P ECU Not listed in my book

P PCU Not listed



"Doesn't look like anything I can offer assistance with. Maybe someone else can help more.



Dan

 

[ILIANBG]

Thanks. I appreciate your help. Do you know what DTC and CCD mean?

 

[JR2]

Here is what is on the code list here https://www.turbodieselregister.com/forums/showthread.php?t=96634



P1693 (M) DTC Detected in Companion Module A fault has been generated in the companion engine control module.



P1693 (M) DTC Detected in PCM/ECM or DTC Detected in ECM A 9Companion DTC9 was set in both the ECM and PCM.



P1694 Fault In Companion Module No CCD/J1850 messages received from the powertrain control module-Aisin transmission



P1694 (M) No CCD Messages received from ECM Bus communication failure to PCM.



P1698 No CCD/J1850 Message From TCM No CCD/J1850 messages received from the electronic transmission control module (EATX) or the Aisin

transmission controller.



P1698 No CCD Messages received from PCM Bus communication failure to PCM. A 9Companion DTC9 was set in both the ECM and PCM.



The P-ECU and P-PCU deals are just telling you that it scanned those two items and found the codes. If it had not found anyting it would say PECU PDONE and P PCU PDone



Looking at the codes I would say the computers are not talking correctly. You might want to pull the plugs on the PCM and ECM and have a look. You could put some dielectric greese in the connects and see if it helps. Usually the act of unplugging and plugging the things back in fixxes the problem. I guess since its at the dealer they will do this for you. I do not think your VP44 has any issues.





Good luck and be sure to tell us what, if anything they find.

 

[ScottLewis]

DTC = Diagnostic Trouble code

CCD, not sure, maybe Comprehensive Control Device?, Just a guess.



Good info JR2



Dan

 

[Turbo Tim 1]

Did you just get done installing your exhaust brake? Sounds like the ECM plug is loose

 

[ILIANBG]

Thank you so much for the input, guys. I sure am thankful to all of you.

TurboTim1, I haven't installed the e-brake yet, but I will, pretty soon.

So, picked it up already. What they told me is the comuters were not "talking correctly" to each other. They asked me if I had moved anything with plugging/unplugging. I told them I just replaced my OEM batteries with new ones(Optima), and they suggested that this was the cause. Codes were cleared by them, and said everything is good with the truck. I felt a lot better. They did not charge me anything. So, soon goes e-brake, ConOFE, and little later-RV275 or Mach1. 6/Mach2 and Smarty. Thanks again.

 

[BILLVO]

I have the same P1693 code and 2 others that will not clear with the smarty.

 

[ILIANBG]

BILLVO, did you unplug anything(ECM,PCM, batteries)? What the other two codes are? Mine were cleared pretty fast. I thought Smarty clears the codes, maybe it's a certain way to get it cleared with it. No codes now here. I hope nothing comes up, ever.

 

[ScottLewis]

FWIW, found another definition for CCD. Probably the correct one:



"CCD Chrysler Collision Detection: data bus system used by the airbag and the anti-lock brake systems "



Dan

 

[ILIANBG]

Codes came back 10 min. ago : I can't believe it! The same ones. This time I wrote'em in order they came.

P PCU

P 1694

P 1693

P done

And after that,

P ECU

P 1698

P done

What is going on? It's dark now, but tomorrow am I'll disconnect both batteries, wait 15 min and see what happens. Where is the PCU located. I want to disconect the ECU(on the engine?) and PCU do see if things change. I do not know what to do if that does not help. Maybe back to the dealer.

 

[ILIANBG]

O. K found where the PCM is located- under the hood. What could cause this"misscomunication" between PCM and ECM? Never happened anything like this, for 75000 mil. until now! Thanks guys.

 

[ILIANBG]

The codes are still here. Dissconected the batteries for 20 min. Did not help. Changed the oil and filter. Was not there when started. All came back after a minute of driving. The tach acts strange- goes to 0, than back to normal RPM, then freezes for about 10 sec. , back to normal RPM. I have a strange oily residue on my rubber mats under near accelerator pedal, something seems to be leaking slowly. I have to take it to the dealer on Monday morning and leave it there for the whole day. I need the truck for work, I can't afford it sitting there. Could it be bad accelerator censor, or bad ground somewhere?

 

[DSauer]

I have same problem, replaced cam sensor everything ok for 3 days then same problem MIL comes on and tach goes crazy. What did you find out?

 

[ILIANBG]

After spending a lot of money I should not have thanks to some of DC's finest pros, end up buying a new ECM, and that fixed my problems. I changed the PCM first, as that was the item diagnosed by DC's finest for being the problem. Of course that did not fix it. The cam sensor was the next they diagnosed by being bad. It was not. I had it changed anyway. Then of course, they said the ECM, nothing else left there to blame it on. I'm so dissapointed and upset. All these money for diagnostics , parts... bunch of idiots, but can definately give you a big invoice. Let me know what happend. I'm sorry I could not respond earlier, I just got back in town.

Ilian

 

[DSauer]

I am taking my '02 back to the dealer monday morning, After they "fixed" it. They told me it was a bad ground for the PCM and water in one of the harness's to the PCM. The mil came on after 4 trips same codes 1693, 1694, and 1698. Dealer also told me that the mil should stay on until the truck starts. Factory service manual says it should go out after the ignition is on for 2 seconds. Dealer says it's a misprint. What is the truth? I am new to CTD, love the truck but have had lots of problems with it. Lift pump, VP 44, wiring harness, headlight switch, and now this. D SAUER, '02 2500, ALL STOCK! 63k

 

[Turbo Tim 1]

My MIL goes out before the wait to start light does, probalby two seconds or so

 

[DSauer]

Took my truck back to the dealer monday, was told that mechanic was pretty sure it was the PCM. The service writer informed me that once the PCM was installed I owned it. We went back and forth on what happens if the PCM is not the problem, and why I should pay for it if it is'nt. They kept the truck till thurs P. M running it, cool down, then running it again, because the mil would come on after 3-4 "trips" after clearing the codes. As of fri eve no mil on. Stay tuned, thanks guys for the help.

 

[ILIANBG]

Very interesting, PCM. I'm really glad I have a chance to learn more about these trucks, just reading about other's experience. Please, keep us posted.

Ilian

 

[DSauer]

So far so good, no mil on. Just curious could an edge ez mod cause a problem in the PCM? I put one in about 3 weeks before all this started, took it out when mil came on, and sent the ez back to edge they gave me a new one. Same problem with mil after clearing codes. Waiting till I know for sure that PCM was problem. Appreciate any info I can get.