IN SHORT I have a 2005 GMC 2500HD DURAMAX 6.6 Turbo 100,000 miles.
The issue I'm having is a reoccurring non crank with a P0601 No Communication with the PCM using modules 18,10 what ever that means. Issue started about 8-9 months ago took about 5 mins turning the key every 30 - 60 sec"s. Was told "Starter Vapor Lock" temp 106. About once month afterwards it would occur same symptoms an issue but not a immediate issue. As daily temps lowered occurrence once every 2 months. the last 2 months to present has steadily gotten worse to the point I'm having to disconnect the batteries and it doesn’t matter if I wait 5 -10 mins or reconnect immediately it will start, I can run up to the store turn off 5 - 10 mins will still start. Any longer and I'll have to disconnect batteries. Now if I disconnect batteries for say 1/2 hr the engine service light would disappear for about 20 miles then stay on. Now it's always on. Also after disconnection and not starting right away I'll have to disconnect again in the morning or 2-3 hrs later.
IN SHORT Batteries without running key/off 12.95 key on running 14.1 or14.2. all dash lights come on when key is turn to start position as they always have also after turning the key to start upon release you can hear what seems to be a relay or something a "thumping clicking" diffidently not the starter. After disconnection it fires right up and never stalls no loss of power everything inside the cab works except for the Heated seats when the buttons are pushed the led's flicker immediately but never stay on for both seats and the Power seat adjustment options all work.
I don't know if this matters but after the 1st non crank issue occurred late last July/August while driving on a 2 lane paved back country "The Getaway" style road with bumps/dips approx 70 mph the all inside DIC's radio mirror info went dark radio still playing I thought this was very strange after tapping the dash, door controls and pushing the doom light/door control buttons with no avail and after tapping the dash a bit harder and a few more road dips and bumps at 70-75 everything came back on and has never occurred since. And I didn't experience the lengthy "no crank" issue till the 1st of this year. And now it's out of control.
I've check the grounds to the starter and most of the common grounds. could I be missing a hidden connection if so where and would the trailer connection intermediate issue have an affect on this issue. Now please correct me normally I would change the starter but after battery disconnection I'm going to say it's not a starter issue unless there's a starter ground I missed. Is there anyway to reset the PCM other than to reprogram it?
Again code P0601 is the only code that the OBD2 Innovan scanner shows as an error.
[FONT="]Thanks for your time and any input corrections, suggestions or recommendations to cure this before the fall Fishing/Bird season.
[/FONT]
[FONT="]
[/FONT]
[FONT="]Thanks again have a good week
[/FONT]
[FONT="]
[/FONT]
[FONT="] Larry
916 417 2687
feel free to call anytime when you have some spare moments.[/FONT]
The issue I'm having is a reoccurring non crank with a P0601 No Communication with the PCM using modules 18,10 what ever that means. Issue started about 8-9 months ago took about 5 mins turning the key every 30 - 60 sec"s. Was told "Starter Vapor Lock" temp 106. About once month afterwards it would occur same symptoms an issue but not a immediate issue. As daily temps lowered occurrence once every 2 months. the last 2 months to present has steadily gotten worse to the point I'm having to disconnect the batteries and it doesn’t matter if I wait 5 -10 mins or reconnect immediately it will start, I can run up to the store turn off 5 - 10 mins will still start. Any longer and I'll have to disconnect batteries. Now if I disconnect batteries for say 1/2 hr the engine service light would disappear for about 20 miles then stay on. Now it's always on. Also after disconnection and not starting right away I'll have to disconnect again in the morning or 2-3 hrs later.
IN SHORT Batteries without running key/off 12.95 key on running 14.1 or14.2. all dash lights come on when key is turn to start position as they always have also after turning the key to start upon release you can hear what seems to be a relay or something a "thumping clicking" diffidently not the starter. After disconnection it fires right up and never stalls no loss of power everything inside the cab works except for the Heated seats when the buttons are pushed the led's flicker immediately but never stay on for both seats and the Power seat adjustment options all work.
I don't know if this matters but after the 1st non crank issue occurred late last July/August while driving on a 2 lane paved back country "The Getaway" style road with bumps/dips approx 70 mph the all inside DIC's radio mirror info went dark radio still playing I thought this was very strange after tapping the dash, door controls and pushing the doom light/door control buttons with no avail and after tapping the dash a bit harder and a few more road dips and bumps at 70-75 everything came back on and has never occurred since. And I didn't experience the lengthy "no crank" issue till the 1st of this year. And now it's out of control.
I've check the grounds to the starter and most of the common grounds. could I be missing a hidden connection if so where and would the trailer connection intermediate issue have an affect on this issue. Now please correct me normally I would change the starter but after battery disconnection I'm going to say it's not a starter issue unless there's a starter ground I missed. Is there anyway to reset the PCM other than to reprogram it?
Again code P0601 is the only code that the OBD2 Innovan scanner shows as an error.
[FONT="]Thanks for your time and any input corrections, suggestions or recommendations to cure this before the fall Fishing/Bird season.
[/FONT]
[FONT="]
[/FONT]
[FONT="]Thanks again have a good week
[/FONT]
[FONT="]
[/FONT]
[FONT="] Larry
916 417 2687
feel free to call anytime when you have some spare moments.[/FONT]
