SPN 1388 - FMI 4 (Fault Code 298)
SPN 1388 - FMI 4 (Fault Code: 298)
SPN1388 FMI4
CODES:
Fault Code: 298
PID(P), SID(S): P443
SPN: 1388
FMI: 4
Lamp: AMBER
SRT:
REASON: Auxiliary Pressure Sensor Input 1 Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage or open circuit detected at the OEM pressure circuit.
EFFECT: None on performance.
Circuit Description:
The original equipment manufacturer (OEM) has the option of wiring a pressure sensor input to the Cummins electronic control module (ECM). A specific calibration is then created to recognize this pressure sensor input.
Component Location:
The OEM pressure sensor input will vary depending on application.
Shop Talk:
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.
Possible causes of this fault code include:
• Signal circuit open or shorted to ground in the OEM harness or sensor
• Supply line open or shorted to ground.
Read More:
SPN 1388 - FMI 3 (Fault Code 297)
SPN 1388 - FMI 14 (Fault Code 296)
Blog.Teknisi
SPN1388 FMI4
 |
| Auxiliary Pressure Sensor Input 1 Circuit |
CODES:
Fault Code: 298
PID(P), SID(S): P443
SPN: 1388
FMI: 4
Lamp: AMBER
SRT:
REASON: Auxiliary Pressure Sensor Input 1 Circuit - Voltage Below Normal or Shorted to Low Source. Low signal voltage or open circuit detected at the OEM pressure circuit.
EFFECT: None on performance.
Circuit Description:
The original equipment manufacturer (OEM) has the option of wiring a pressure sensor input to the Cummins electronic control module (ECM). A specific calibration is then created to recognize this pressure sensor input.
Component Location:
The OEM pressure sensor input will vary depending on application.
Shop Talk:
Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM.
Possible causes of this fault code include:
• Signal circuit open or shorted to ground in the OEM harness or sensor
• Supply line open or shorted to ground.
Read More:
SPN 1388 - FMI 3 (Fault Code 297)
SPN 1388 - FMI 14 (Fault Code 296)
Blog.Teknisi
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