A25D code Ma2501-4

[allen lafrance]

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

 

[allen lafrance]

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

 

[sfrs4]

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

 

[allen lafrance]

Yes its a D9 and the fmi is 4

 

[allen lafrance]

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

 

[sfrs4]

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

 

[allen lafrance]

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

Thanks