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Code P1600

7.2K views 19 replies 8 participants last post by  xoxoxoBruce  
#1 ·
Just went to take my SSR to lunch---No Start. Read codes got P1600. Any one have any experience with this manufactures code?
 
Discussion starter · #4 ·
Thanks for all the help. Here is where I am now. A second check of the code show a P0689 (dreaded relay problem). I had just had the fuse box repaired by the Dictator. Dick overnight ed me a another fuse box. After it was installed all seem fine. But wait, this AM I drove to my shop OK. Went to go to the bank and NO START. Previously, I had installed a jumper (per Ed) and it started right up. When the jumper was removed the codes and problem were gone and the problem could not be duplicated again.
With the replacement Fuse box still installed, I removed the relay and jumper the power cranked the SSR and moved it into a bay removed the jumper and confirmed that the problem still existed. It did so the next step was to check continuity from pin 10 on the pcm the fuse box connector. It was good, so the fuse box connector was reinstalled and continuity checked from pcm pin 10 the the relay socket, the results were mixed, not always present. Changed fuse boxes and made the same test to the relay socket, still intermittent.
It appears the the relay did not fit tightly into either fuse box socket. Ordered a new relay and slightly twisted the connector pins to improve contact and reconnected everything. The SSR started with no codes.
There seems to be an issue with the fuse box relay socket that is age or wear related. I will drive her a few days and hope the problem does not return. If it does, I will post the issue immediately.
Since I have owned this SSR less than a month, I do not know its history.
Thanks to the Dictator for his prompt shipment of another fuse box.
 
Discussion starter · #8 ·
Autoprof, thanks for your effort. Since this SSR is new to me I have no idea of how the problem originated. The relay pins show excessive ware and the was a poor practice fuse to fuse jumper install to by-pass the original broken wire in the fuse box issue, corrected by the Dictator.
I own a repair shop and we have all the toys, used a relay test point adapter to find the no ground condition at the relay.
Thanks again.
 
Discussion starter · #14 ·
The problem returned this morning! I removed and reinstalled the relay, it did not corrected the problem. No ground from the pcm for the relay. Guess my diag was not so good after all. Continuity from pcm connector the fuse box is good. I guess the problem is in the computer after all.
 
Discussion starter · #16 ·
Thanks for the additional info. We have been very busy at the shop so I have not had much time to work on the SSR. It is an '05 and we are confident that the PCM is the issue. All of the circuits that you have highlighted have checked good. I ordered a computer late last week and expect to have it today. I have put a few miles on it with the relay removed and the jumper installed; everything appears to be working properly. I will let you know if we missed something and the computer does not resolve the issue.