Volvo

Volvo All Engines (2013 Emissions) Fault Code: P255601 PID: EMS Engine Coolant Level Sensor/Switch

Conditions for diagnostic trouble code (DTC):
1) General Electrical Failure

Observable symptoms
1) Coolant level cannot be detected

Probable cause
1) Connector
2) Engine Coolant Level (ECL) Sensor

Volvo All Engines (2013 Emissions) Fault Code: P255611 PID: EMS Engine Coolant Level Sensor/Switch

Circuit description
Voltage from the engine control module (ECM) is applied to the engine coolant level (ECL) switch when the ignition switch is in the ON position. When the reservoir runs low, the float will be lowered on the coolant level sensor. The signal to the ECM will indicate low coolant.

If the engine control module (ECM) detects that the coolant level switch has experienced a power loss or that the level can not be detected, the ECM will set a diagnostic trouble code (DTC) and derate the engine to avoid engine damage.

Conditions for diagnostic trouble code (DTC)
Coolant level switch closed

Probable cause
1) Connector
2) Wiring harness
3) Engine Coolant Level (ECL) Sensor
4) Low coolant level
5) Engine control module (ECM)

Volvo All Engines (2013 Emissions) Fault Code: P255612 PID: EMS Engine Coolant Level Sensor/Switch

Engine Coolant Level (ECL) Sensor
Voltage from the engine control module (ECM) is applied to the engine coolant level (ECL) switch when the ignition switch is in the ON position. When the reservoir runs low, the float will be lowered on the coolant level sensor. The signal to the ECM will indicate low coolant.

If the engine control module (ECM) detects that the coolant level switch has experienced a power loss or that the level can not be detected, the ECM will set a diagnostic trouble code (DTC) and derate the engine to avoid engine damage.

Conditions for diagnostic trouble code (DTC)
Short circuit to battery voltage on Placeholder

Diagnostic operating conditions
Ignition key in ON position

Observable symptoms
Coolant level cannot be detected

Probable cause
1) Connector
2) Wiring harness
3) ECM – Engine Control Module

Volvo All Engines (2013 Emissions) Fault Code: P255613 PID: EMS Engine Coolant Level Sensor/Switch

Voltage from the engine control module (ECM) is applied to the engine coolant level (ECL) switch when the ignition switch is in the ON position. When the reservoir runs low, the float will be lowered on the coolant level sensor. The signal to the ECM will indicate low coolant.
If the engine control module (ECM) detects that the coolant level switch has experienced a power loss or that the level can not be detected, the ECM will set a diagnostic trouble code (DTC) and derate the engine to avoid engine damage.

Conditions for diagnostic trouble code (DTC):
1) The voltage at pin A14.EB:23 is below normal value

Diagnostic operating conditions
1) Ignition key in ON position

Observable symptoms
1) Coolant level cannot be detected

Probable cause
1) Connector
2) Wiring harness
3) Engine Coolant Level (ECL) Sensor
4) Short circuit to ground
5) ECM – Engine Control Module

Volvo All Engines (2013 Emissions) Fault Code: P255800 PID: EMS Engine Coolant Level Circuit Low

Voltage from the engine control module (ECM) is applied to the engine coolant level (ECL) switch when the ignition switch is in the ON position. When the reservoir runs low, the float will be lowered on the coolant level sensor. The signal to the ECM will indicate low coolant.
If the engine control module (ECM) detects that the coolant level switch has experienced a power loss or that the level can not be detected, the ECM will set a diagnostic trouble code (DTC) and derate the engine to avoid engine damage.

Conditions for diagnostic trouble code (DTC):
1) Short circuit to ground on A14.EB:23

Diagnostic operating conditions
1) Ignition key in ON position

Observable symptoms
1) Coolant level cannot be detected

Probable cause
1) Connector
2) Wiring harness
3) Engine Coolant Level (ECL) Sensor
4) ECM – Engine Control Module

Volvo All Engines (2013 Emissions) Fault Code: P256214 PID: EMS Turbocharger Boost Control Position Sensor “A”

The (VGT) Variable Geometry Turbocharger Actuator is a self-contained component with motors, sensors and a control unit.
The (VGT) Variable Geometry Turbocharger uses a movable nozzle to adjust the intake manifold pressure for various operating conditions. Nozzle movement is controlled by an actuator mounted on the tubocharger. When the Engine Control Module (ECM) Relay is energized, a fuse supplies battery voltage to the (VGT) Variable Geometry Turbocharger and the unit is grounded by means of the engine block.

Conditions for diagnostic trouble code (DTC):
1) Component disabled by internal diagnostics

Observable symptoms
1) Engine de-rated

Probable cause
1) Internal fault, Actuator

Volvo All Engines (2013 Emissions) Fault Code: P256300 PID: EMS Engine Intake Manifold #1 Pressure Circuit Range/Performance

The engine control module (ECM) monitors the intake manifold pressure (IMP) sensor and controls the boost air system (mainly controlled by the VGT) and the engine turbocharger compressor bypass valve. The ECM also uses parameters like engine speed (RPM) and turbocharger speed to make a calculation of the IMP. This estimated value should not differ too much from the measured value.

Conditions for diagnostic trouble code (DTC):
1) Requested VGT position over range

Observable symptoms
1) Low Power

Probable cause
1) Turbocharger
2) Faulty parameters
3) Stuck nozzle or cross shaft

Detailed information
1) Variable geometry turbocharger, stuck