The immobilizer function is a part of a system that prevents the engine from starting if the correct ignition key is not used. After ignition ON, a security code is broadcast from the ECM control unit to the immobilizer control unit or the Instrument cluster (US market). Engine start is permitted if a correct response message is received within a certain number of tries and within a certain time from the immobilizer control unit.
Conditions for diagnostic trouble code (DTC): 1) Communication fault between Instrument cluster (IC) and Engine control module (ECM)
Probable cause 1) Open circuit, Data link 2) Short circuit to ground 3) Short circuit to higher voltage 4) Short circuit CAN H – CAN L 5) Faulty or missing terminating resistor in the powertrain datalink 6) Faulty termination resistance in the engine control module (ECM)
Volvo All Engines (2010 Emissions) Fault Code: SPN 1198 FMI 12 PID: 224 Anti-Theft Random Number
Conditions for diagnostic trouble code (DTC): 1) CAN communication does not work
Observable symptoms 1) An electronic control unit (ECU) lacking communication with other ECUs can cause a number of symptoms
Probable cause 1) Internal fault in electronic control unit (ECU) 2) Connector 3) Data link 4) Faults on the datalink can be localised by combining this diagnostic trouble code (DTC) with other DTCs
Volvo All Engines (2010 Emissions) Fault Code: SPN 1231 FMI 2 PID: PSID 229 SAE J1939 Data Link 2
Volvo All Engines (2010 Emissions) Fault Code: SPN 1198 FMI 12 PID: 224 Anti-Theft Random Number
The engine piston cooling oil supply valve is located in the oil filter housing and is used to control the piston cooling oil pressure. The engine control module (ECM) controls the valve by monitoring the signal from the piston cooling oil pressure sensor. If an electrical fault is detected inside the valve it will be fully open (fail safe).
Conditions for diagnostic trouble code (DTC): 1) Output activated 2) The current at pin A14.EB:41 is above 2.2?A
Diagnostic operating conditions 1) Ignition key in ON position
Observable symptoms 1) Low oil pressure at low engine speed
Probable cause 1) Short circuit to voltage supply, control wire 2) Short circuit in control valve
Volvo All Engines (2010 Emissions) Fault Code: SPN 1231 FMI 9 PID: PSID 229 SAE J1939 Data Link 2
Volvo All Engines (2010 Emissions) Fault Code: SPN 1231 FMI 2 PID: PSID 229 SAE J1939 Data Link 2
Volvo All Engines (2010 Emissions) Fault Code: SPN 1198 FMI 12 PID: 224 Anti-Theft Random Number
The engine piston cooling oil supply valve is located in the oil filter housing and is used to control the piston cooling oil pressure. The engine control module (ECM) controls the valve by monitoring the signal from the piston cooling oil pressure sensor. If an electrical fault is detected inside the valve it will be fully open (fail safe).
Conditions for diagnostic trouble code (DTC): 1) Output not activated 2) The voltage at pin A14.EB:41 is between 33?% and 67?% of the battery voltage
Diagnostic operating conditions 1) Ignition key in ON position
Observable symptoms 1) Low oil pressure at low engine speed
Probable cause 1) Open circuit on common supply wire or open circuit on fuse FE9 2) Control wire in engine wiring harness 3) Piston Cooling Valve
Conditions for diagnostic trouble code (DTC): 1) The engine brake is activated but the expected exhaust back pressure (EBP) is not achieved
Observable symptoms 1) Engine brake, poor brake performance/Brake performance too high
Probable cause 1) Exhaust back pressure sensor 2) Faulty connection 3) Air valve unit 4) Butterfly 5) Control valve, VCB 6) Leakage from hoses or connections