Greetings. I have here a 2004 1500, 4.7. She died on the highway and it won't restart. Turn the key and nothing happens.

I checked codes and found the P0688 and P2323, P2320, P2314, P2311, P2308, P2305 codes. The P0688 is for the ASD relay sense circuit open. The P23XX codes are for Ignition coil #X secondary circuit insufficient ionization Where the X is a different cylinder. But it's only for cylinder 2-8 which is kinda odd, but since it happened all at once, I am thinking that the ASD relay has caused the P23XX codes, though I may be wrong.

I have been searching the internet over and the only fix that I have found is that some people have replaced the TIPM.

My question is how would I troubleshoot this to be sure it is the TPIM and if it is the TPIM, does any dealer programming need to happen to get it to run?

 

Good morning. Does anyone have any information this morning?

Thanks

 

So I don't have power from the key switch start position to the PCM or IPM though I have power out of the switch and to the main connector by the park brake pedal. The wiring diagrams I have don't have any connector locations or splice locations, so I could use some help with that if anyone has information.

 

Due to my bad testing, I found out that I DO have power to the PCM and the IPM in the start position. Right now I need to figure out where key on power is supposed to go. I haven't found it in my diagrams.

 

I ordered a PDF manual and it's close, but the TIPM is the wrong one, but I have been working around that and I have power everywhere that I should. The only thing that I don't have is a ground for the ASD relay from the PCM. Unless I am missing something, it looks like the PCM is bad. What else am I missing?