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sprinkles08, Chrysler/Dodge/Jeep master tech
Category: Dodge
Satisfied Customers: 23005
Experience:  ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans and Hybrid Specialist
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93 diesel dually I had the computer supposedly repaired, but

Customer Question

93 diesel dually I had the computer supposedly repaired, but still have no charging and speed issues. Do I need to have the computer reprogrammed? do I just need a replacement? can I even get one?
Submitted: 1 year ago.
Category: Dodge
Expert:  Tim Mohr replied 1 year ago.

Hi, my name is ***** ***** all have you done to this so far?

Customer: replied 1 year ago.
First I replaced the alternator, I have replaced speed sensors on trany and rear end. Sent the computer out to a web based outfit but have little faith that they did anything other than clean the case.
Expert:  Tim Mohr replied 1 year ago.

ok, have you pulled codes from the computer yet?

Customer: replied 1 year ago.
Also replaced crank sensor. And viewed a hundred useless web sites on eliminating the computer.
Check engine won't stay on long enough to read,
Expert:  Tim Mohr replied 1 year ago.

once the light comes on, then it stores the code in the computer until it is manually cleared, have you tried retrieving codes?

Customer: replied 1 year ago.
I could not get anything to download.
Expert:  Tim Mohr replied 1 year ago.

does your scanner communicate with the computer?

Expert:  Tim Mohr replied 1 year ago.

are you still here?

Customer: replied 1 year ago.
If the computer were communicating I would not need to ask for advice, Thank you but I will try a local dealer mechanic.
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

If the PCM isn't awake it could be due to an internal failure, a loss of power or ground to it, a short to voltage on a sensor ground circuit, or a short to ground on a reference voltage circuit.

Has any actual testing been done?