P1698 No Bus, truck still runs

[gipperkid]

Got a P1698 this morning.

 

Recently had my ECM repaired by ACS. The truck has been running fine since installing the repaired ECM, and doing the ground mod.

 

Leave for work this morning and the truck is stumbling and billowing white smoke which I know is due to the failing VP44. However, the dash dings, lose all gauges, ABS, brake, Air bag, CEL, low fuel all illuminate.

 

I cycled the truck on and off two times and the gauges were working, but had a CEL light, only codes P1698, P0216. Still able to pull codes with scanner. Drove to work fine. Went to move my truck and no bus again, no gauge cluster, and all lights illuminated. But the truck still runs and drives with no issues. Is it possible the ACS repaired ECM could be causing issues or is this ground related?

[Mopar1973Man]

Time to call ACS on either warranty claim... 

 

Might be the PCM failing.

 

[gipperkid]

I suppose I'll have to send the ECM back in to be tested.

[Mopar1973Man]

Call them first with the information you might have to send the PCM as well.

[Royal Squire]

You might try cleaning all connections on PCM and instrument cluster. I think a poor connection on PCM is what caused my “no buss”. 

[gipperkid]

44 minutes ago, Royal Squire said:

You might try cleaning all connections on PCM and instrument cluster. I think a poor connection on PCM is what caused my “no buss”. 

Yea I figure it must be a dirty connection because I just ran home for lunch and the gauges are functional. Of course still have a stored CEL P1698.

[Mopar1973Man]

Error codes will remain for 40 warm-up cycles after the last error was set. Trying to determine if the problem is fix by error code is only done by clearing the codes with OBDII code reader. Then go for a good 10 to 15 mile ride and then check again.