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Old Feb 21, 2026 | 08:49 AM
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after code 2509 NO CRANK anymore and, no new codes.... "SPNDL indicator not showing on dashboard".....how to proceed diagnosing and hopefully fix it. (2007.5 ram 2500, SLT, 2wd., 6 automatic)
 
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Old Feb 21, 2026 | 09:06 AM
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p2509 Code - ECM/PCM Power Input Signal Intermittent

Check your fuses, battery connections, etc.
 
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Old Feb 22, 2026 | 07:53 AM
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batteries replaced & all grounds cleaned and checked for voltage drop/ the PRNDL is needed for crank authorization....how to diagnose / fix PRNDL ?
 
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Old Feb 22, 2026 | 09:15 AM
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Are you still getting the code?
 
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Old Feb 22, 2026 | 10:38 AM
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Originally Posted by HeyYou
Are you still getting the code?
code was deleted, now no crank/no start/no codes but 12v+ and ground ok on diagnostic module,
replaced transmission range sensor module again no change,
 
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Old Feb 22, 2026 | 11:23 AM
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Usually, if it's a range sensor problem, ALL the gears light up, and it sets a code, if you are not getting a display at all, that's likely something else. Will your scanner tell you what gear the PCM thinks it is in?
 
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Old Feb 22, 2026 | 01:55 PM
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no indication of shifter position on scan tool
 
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Old Feb 22, 2026 | 04:39 PM
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You need a service manual for your truck. I think they are still published by Bishko, should be able to get a downloadable version from them for relatively cheap.
 
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Old Feb 23, 2026 | 04:52 PM
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Originally Posted by HeyYou
You need a service manual for your truck. I think they are still published by Bishko, should be able to get a downloadable version from them for relatively cheap.
Nice try !
 
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