Heavy Equipment Forums Heavy Equipment Community

A25D code Ma2501-4

allen lafrance · 2022-08-24 07:47

Hi i have this code MA2501-4 some one can help me thanks

Replies6
  1. #1allen lafrance2022-08-25 21:09

    Exhaust gas brake i dont know what is fmi 4 but I test 3 wire on it and 2 wire coming from ecu give me 12v ~!? And the last is mass i think fuse and relay ok

  2. #2sfrs42022-08-30 03:07

    is yours a D9 or D10 engine? The attached is for testing the D9 engine

  3. #3allen lafrance2022-08-30 14:46

    Yes its a D9 and the fmi is 4

  4. #4allen lafrance2022-08-30 14:47

    We do continuity to ecm and all good but ecm keep give 12v only

  5. #5sfrs42022-08-31 04:59

    PWM valve, exhaust brake pressure, voltage too low SAE code: MID 128 PPID 124 FMI 4 Conditions: The engine control unit (E-ECU) registers: ○ component not activated ○ voltage too low (EB38) Possible cause: ○ Signal line short-circuited to frame ground Reaction from control unit: ○ 1F2501, activation engine brake (EMS) Symptom/malfunction: ○ Low power ○ Heavy exhaust smoke development ○ Component continuously activated

  6. #6allen lafrance2022-08-31 07:31

    Thanks