Joined
·
194 Posts
Got this message today. Engine went into a safety mode. Very abrupt shifts. Warning auto cleared when I restarted the truck and drove great. Taking it to the dealer in the am.
Attachments
-
94.4 KB Views: 866
I thought I remembered seeing some else had that pop up. BTW your link isnt working for me. Did you get it diagnosed?I got the same exact message very early on. Like you said the next day when I started the truck the message was gone... It has never been back on...
http://www.titanxdforum.com/#/forumsite/20813/topics/9738?page=1
Thanks!Nice Truck Actiontkr
I haven't seen an ECM update for this warning. It is possible that there is one if the engineers have determined that the ECM software is triggering a false code and putting the truck into limp mode. We have only had one customer that has had the message and it was gone when he brought it in to have it looked at. There was no codes store in the ECM and everything was functioning properly at the time. It has not happened again and it has been about 4 months now. Due to the time when he brought it in I wasn't able to call techline for more information on the cause and wasn't able to find any information about it in the service manual. Being a diesel there is no throttle on the engine. Not what you were looking for but if I get a chance I will see if I can get some more information.This sounds like a very serious problem. That message means that one of the many failsafe modes in the drive-by-wire throttle control were triggered and your vehicle was put into limp mode to protect you - not protect the truck. I would really grill the service manager on what it is they are doing to correct it and why and ECM update fixed it. I would hate to find out that the ECM update corrected it by simply choosing to ignore whatever failsafe triggered the response.
@realbored - Help us out here big brain!
There is no throttle position sensor on the engine as there is no throttle. The wording of the warning is probably not the best. The ECM is seeing sensor data from one or multiple sensors that it does not like and is triggering the warning. On Monday if I remember I am going to email our regional technical service rep to get some more information.Isn't this a required safety mode when the ECU detects an error communicating with the throttle position sensor? So a quick online search brings up as I thought above. Seems electrical issues are the major cause from bad batteries to bad sensors on the same power supply, water in connectors, loose connectors etc.
I fully understand what your saying but there is a accelerator pedal position sensor that acts as a fuel/throttle request. Since Toyota had throttle issues back the 2000's with the "drive by wire"system, this safety has been widely used. Doesn't matter if it's a diesel or gas. The warning message is common on RAM 6.7 Cummins trucks when the vehicle battery gets low as well as the EcoDiesel.There is no throttle position sensor on the engine as there is no throttle. The wording of the warning is probably not the best. The ECM is seeing sensor data from one or multiple sensors that it does not like and is triggering the warning. On Monday if I remember I am going to email our regional technical service rep to get some more information.
I fully expect the APP sensor would be one input that could cause the message. I just want to find out what other sensors/conditions could cause it. Sometimes it puts trucks into fail safe and sometimes it doesn't so there must be multiple reasons that are causing it. It is frustrating when they don't put the information in the manuals.I fully understand what your saying but there is a accelerator pedal position sensor that acts as a fuel/throttle request. Since Toyota had throttle issues back the 2000's with the "drive by wire"system, this safety has been widely used. Doesn't matter if it's a diesel or gas. The warning message is common on RAM 6.7 Cummins trucks when the vehicle battery gets low as well as the EcoDiesel.
The majority of the time when an intermittent problem occurs it is due to poor pin fit in a connector. It is often overlooked or not checked because it can be very time consuming. Most guys pull the code and if it is not current will just replace whatever part is indicated by the code. It is probably the leading cause of customers having to return for the same issue.Fwiw, I had this message come up 4 times in my first 2000 miles on my 2016 diesel. After long and hard troubleshooting, the regional service manager for Nissan found that a contact spade on the female side of the exhaust pressure sensor was bent and therefore causing intermittent contact and generating the warning.
Just wanted to mention because often the exhaust pressure sensor was identified as bad because of the code, but after replacing the sensor it would return. Coupler can only be repaired unless entire engine wiring harness is replaced.
Sent from my SM-G920V using Tapatalk
The majority of the time when an intermittent problem occurs it is due to poor pin fit in a connector. It is often overlooked or not checked because it can be very time consuming. Most guys pull the code and if it is not current will just replace whatever part is indicated by the code. It is probably the leading cause of customers having to return for the same issue.[/QU Exactly what I experienced in thirty plus years in auto service, a unwillingness to dig into a problem further, take the easy road out, once we got better management that pushed for customer satisfaction our lazy tech's either got on board or moved on...