Allpar Forums banner

P1797 Neutral Safety Switch and ESC Please Advise

28953 Views 57 Replies 5 Participants Last post by  AllanC
Hello, I am having two issues and they could be related but I am not sure. The only code I am getting is the P1797. Please advise as to where this switch is and how can I replace it. I have searched out this switch online but have failed to find that this switch is actually even used on my 2011 Dodge Grand Caravan. Symptoms are that it is difficult to shift the lever out of park and if the ELECTRONIC STABILITY CONTROL light is on, is on then this is when I have the problem. I must power down and restart in order to start. I am afraid eventually it will fail completely.

I am wondering what this ECS which has a button on the front console on the same panel as the hazard lights is coming on? When I push the button, it seems to do nothing. Why is this light coming on? What can I do to correct this issue?
1 - 4 of 4 Posts

· Virginia Gentleman
Joined
·
8,714 Posts
Regarding the P1797 fault code, I think this is the same component I've been having intermittent problems with on our Journey (62TE transmission). It's not a neutral safety switch, but is now referred to as the TRS (Transmission Range Sensor). Unfortunately, it is deep inside the transmission requiring the pan dropped and valve body removed to access. Probably looking at 2-3 hours labor at over $100/hour (maybe more).

I would advise having a properly equipped shop or dealership confirm the diagnosis first. Mine has never been hard to get out of park. I just had no start issues. Whenever the no start situation occurred I could move the gear select to neutral and it would start up. Your symptoms sound more like a hardware or physical problem - maybe a brake interlock problem or a dragging parking pawl? Perhaps the parking pawl has been damaged? Again, I recommend a competent shop or dealer to do diagnostics - plan on an hours labor charge.

I'm not sure if the ECS is related or not. My Journey owners manual indicates if the ESP (Electronic Stability Program) light is on (other than at start up momentarily) a malfunction has been detected.

The ECS/ESP button you refer to allows you to partially turn off the electronic stability control. The ESP (or in your case ECS) light will be on to indicate this. Consult your owners manual.
 

· Virginia Gentleman
Joined
·
8,714 Posts
FWIW - the TRS lists as a relatively inexpensive part - about $40-$60. The problem is the pan and valve body have to be removed for R&R. Then you have to figure in labor costs and fresh fluid.
 

· Virginia Gentleman
Joined
·
8,714 Posts
I cannot trust the dealerships in my area. I drive taxi and a taxi driver is the last person they want to help. The reason is because all the taxi drivers before me always would go to dealer, get the diagnostics done and find the problem and take it to their personal mechanic to fix it. so far, i have had 2 bad experiences with dealerships close to me.
Please note I said "properly equipped shop or dealership". The choice is yours. The problem you may run into is not all independent shops may have the diagnostic tools at its disposal that a dealership will have. YMMV.
 
1 - 4 of 4 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top