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FIX-IT, Technician
Category: Heavy Equipment
Satisfied Customers: 1232
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Freightliner fault code J1939

Customer Question

Freightliner fault code "J1939"
Submitted: 6 years ago.
Category: Heavy Equipment
Expert:  FIX-IT replied 6 years ago.
Hello and welcome to just answer.i can help you with this..when you first turn the key on,what is displayed in the transmission key pad..a "N" ?
Customer: replied 6 years ago.
transmission pad is blank.
Expert:  FIX-IT replied 6 years ago.
ill need the last 6 of your vin pls..
Customer: replied 6 years ago.
Expert:  FIX-IT replied 6 years ago.

click here

follow the diagram

it looks like the transmission or key pad isn't lighting up.

unplug the key pad and confirm you have power and ground and switched per the drawing,let me know how you do..

Customer: replied 6 years ago.
Doesn't appear to have power to the transmission key pad, but I don't understand why this would prevent the engine from cranking. Batteries are sound and fully charged. Only has 11,000 miles. Since the ABS light is on, I ran diagnostic and got an ABS fault "SID 231 FMI 90C 0". Would the ABS fault prevent the engine from cranking?
Expert:  FIX-IT replied 6 years ago.
if the transmission does'nt power up its like a neutral safety switch,no power to the tranny means it will default to no start
Customer: replied 6 years ago.

This isn't an answer. This is just another symptom.

Forget it. It's fixed.

Expert:  FIX-IT replied 6 years ago.