Conditions for diagnostic trouble code (DTC):
1) Internal fault in electronic control unit (ECU)
2) Incorrect self test in the engine control module (ECM)
Observable symptoms
1) Engine does not start
Probable cause
1) Aftertreatment Control Module (ACM)
Volvo All Engines (2010 Emissions) Fault Code: SPN 631 FMI 8 PID: PSID 7 Calibration memory
Volvo All Engines (2010 Emissions) Fault Code: SPN 631 FMI 7 PID: PSID 124 Calibration memory
Volvo All Engines (2010 Emissions) Fault Code: SPN 631 FMI 7 PID: PSID 7 Calibration memory
Volvo All Engines (2010 Emissions) Fault Code: SPN 631 FMI 5 PID: PSID 124 Calibration memory
Volvo All Engines (2010 Emissions) Fault Code: SPN 631 FMI 5 PID: PSID 7 Calibration memory
Volvo All Engines (2010 Emissions) Fault Code: SPN 631 FMI 4 PID: PSID 124 Calibration memory
