Medium and Heavy Trucks
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Hi my name is***** 4th!!! I will be glad to help if you still need help with this. Bare with me while i pull up these codes.
2023 14 150 or 250 2 N/A EngineController not communicating with the primary EGC (150) or secondary EGC (250) Loss of communication in excess of 10 seconds. DrivetrainJ1939 data link. ..
639 14(###) ###-#### ***** Cruise control enable, active, state and vehicle speed not communicated to the ESC PGN 65265-SA 0
639 14 4(###) ###-#### ***** Enginespeed not communicated to the ESC PGN 61444-SA 0 ..
612 14 25 1 4004/Bus 1602 5 Connector#4004/Bus 1602 Pin #5 Fuel level sensor out of range low This code is associated with a short to ground on the fuel level sensor on the draw tank for both single tank and dual tank vehicles. Shorted to ground. ..
639 14 5(###) ###-#### ***** Current gear, range inhibit and check transmission lamps not communicated to the ESC. PGN 61445-SA 3 ..
2033 14 13 3 4004/Bus 1602 25 Connector 4004/Bus 1602 pin 25. Output shorted to ground. Bus connector 1602 pin#25, Park Position Unlock solenoid, Output Shorted to ground Connector 4004/Bus 1602 Pin 25 shorted to ground. Bus connector 1602 pin#25, Park Position Unlock solenoid, Shorted to ground
You have lost communication with the ESC either a loss of power or ground, failed ESC, or a datalink/ harness problem. click on these links for schematics to help.
check all your fuses and relays as well
thanks for the update. If you look at the faults you will see some indicate the actual connector number and connector pin wire number showing the problem area. The schematics i posted have the connector numbers in them to test. Verify all your power and grounds to the ESC and if okay you will need to have your ESC reprogrammed or bench tested for possible failure. You tested all this with a volt ohm meter following the diagrams? Or not yet and only did a visual inspection? Let me know
Hi,Did you get this resolved?