Volvo

Fault Condition: This fault will become active when the EMS Module detects that the Water In Fuel Filter supply voltage is above or below preset specifications. Actual water in the fuel filter will not produce a fault. Possible repairs: Turn the ignition key OFF first. 1) Disconnect EMS Module connector B and the Water In Fuel Filter (WIFF) Sensor connector. Measure for continuity between EMS Module harness connector B pin 8 and pin 3 of the WIFF Sensor harness connector.If there is NO continuity, repair the open in the harness reference voltage line.2) Disconnect EMS Module connector B and the...

Fault Condition: If the EMS Module senses that the engine oil level is moderately or critically below range, FMI 1 will be set. If the reference voltage signal is shorted to ground, FMI 4 will be set. If the reference voltage circuit is shorted to battery voltage or has an open circuit, FMI 5 will be set. If the ground circuit of the sensor has an open, FMI 5 will also be set. Possible repairs: Turn the ignition key OFF first. 1) Disconnect the Engine Oil Temperature/Level Sensor connector.Check for continuity between each of the pins (1,2,3, and 4) of...

Fault Condition: If the EMS Module senses that the engine oil level is moderately or critically below range, FMI 1 will be set. If the reference voltage signal is shorted to ground, FMI 4 will be set. If the reference voltage circuit is shorted to battery voltage or has an open circuit, FMI 5 will be set. If the ground circuit of the sensor has an open, FMI 5 will also be set. Possible repairs: Turn the ignition key OFF first. 1) Disconnect the Engine Oil Temperature/Level Sensor connector.Check for continuity between each of the pins (1,2,3, and 4) of...

Fault Condition: If the EMS Module senses that the engine oil level is moderately or critically below range, FMI 1 will be set. If the reference voltage signal is shorted to ground, FMI 4 will be set. If the reference voltage circuit is shorted to battery voltage or has an open circuit, FMI 5 will be set. If the ground circuit of the sensor has an open, FMI 5 will also be set. Possible repairs: Turn the ignition key OFF first. 1) Disconnect the Engine Oil Temperature/Level Sensor connector.Check for continuity between each of the pins (1,2,3, and 4) of...

Fault Condition: This fault can only be detected if the engine brake is demanded ON. If the fault clears, the compression brake system will not be enabled until the power is cycled.The engine brake must be operated to ensure the fault has been cleared. The engine brake can only be operated with the engine oil temperature above 131ºF (55ºC), the vehicle moving and the engine speed above 1200rpm. FMI 1 indicates the data is valid but less than normal. A condition that could cause this would be low engine oil temperature. The Engine Compression Brake can not be engaged if...