Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 629
FMI: 12
Description: ECM Internal chip Error
Troubleshooting:
Code is set during ECM self test
Probable Causes:
1) Internal ECM failure
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 636
FMI: 2
Description: CMP and CKP Synchronization Error
Troubleshooting:
The Camshaft Position (CMP) sensor is used to read camshaft speed and position. The
Electronic Control Module (ECM) uses both the CMP and Crankshaft Position (CKP) sensors
to calculate the RPM and timing of the engine.
Probable causes:
1) CMP sensor or circuit fault
2) Camshaft and Crankshaft out of time
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 636
FMI: 7
Description: CMP to CKP incorrect reference
Troubleshooting:
The Camshaft Position (CMP) sensor is used to read camshaft speed and position. The
Electronic Control Module (ECM) uses both the CMP and Crankshaft Position (CKP) sensors
to calculate the RPM and timing of the engine.
Probable causes:
1) CMP sensor or circuit fault
2) Camshaft and Crankshaft out of time
Make: International
Engine: MaxxForce DT (2010 & Newer)
PID: N/A
SPN: 637
FMI: 8
Description: CKP signal noise
Troubleshooting:
The Crankshaft Position (CKP) sensor is used to read crankshaft speed and position. The
Electronic Control Module (ECM) uses both the Camshaft Position (CMP) and CKP sensors to
calculate the RPM and timing of the engine.
Probable causes:
1) CKP sensor or circuit fault