Volvo

Volvo All Engines (2017 Emissions) Fault Code: P021700 PID: EMS Engine Coolant Over Temperature Condition The Engine Coolant Temperature Sensor is a thermistor. The resistance of the Engine Coolant Temperature Sensor changes inversely to the temperature of the engine coolant. When the coolant is cold, the sensor resistance is high. As the temperature of the coolant increases, the sensor resistance decreases.The Engine Control Module (ECM) monitors the voltage drop across the Engine Coolant Temperature Sensor.The coolant temperature signal is used to calculate fuel injection and to evaluate operating conditions of the engine coolant temperature. Examples of conditions that may cause...

Volvo All Engines (2017 Emissions) Fault Code: P021800 PID: EMS Transmission Fluid Over Temperature Condition The J1587 and J1939 serial data lines are used as the standard communication link for on-board vehicle instrumentation, off-board service diagnostics and fleet management.The transmission oil temperature sensor sends a signal to the instrument cluster module which relays a signal to the engine control module (ECM) via the data link. The signal is used to demand fan activation. If the transmission oil temperature gets too high, a yellow check lamp or red stop lamp will illuminate. The engine will also derate. Observable symptoms1) Engine de-rated...

Volvo All Engines (2017 Emissions) Fault Code: P021900 PID: EMS Engine Overspeed Condition The Crank Speed Sensor is an inductive sensor that will generate a variable voltage signal when the sensor’s magnetic field is excited. When the engine is running the flywheel’s teeth rotate past the sensor’s tip and voltage pulses are generated. The Engine Control Module (ECM) monitors the frequency of the signal generated by the Crank Speed Sensor and calculates the engine RPM. Conditions for diagnostic trouble code (DTC):1) Engine speed too high Observable symptoms1) Unit Injector, Cut-Out Probable cause1) Wrong gear may be engaged (when engine braking)2)...

Volvo All Engines (2017 Emissions) Fault Code: P024311 PID: EMS Turbocharger/Supercharger Wastegate Solenoid “A” Conditions for diagnostic trouble code (DTC)Output activatedShort circuit to ground on A14.EB:50 Probable cause1) Control wire2) Air valve unit Volvo All Engines (2017 Emissions) Fault Code: P020F25 PID: EMS Cylinder 6 Injection Timing Volvo All Engines (2017 Emissions) Fault Code: P020E25 PID: EMS Cylinder 5 Injection Timing Volvo All Engines (2017 Emissions) Fault Code: P020D25 PID: EMS Cylinder 4 Injection Timing Volvo All Engines (2017 Emissions) Fault Code: P020C25 PID: EMS Cylinder 3 Injection Timing Volvo All Engines (2017 Emissions) Fault Code: P020B25 PID: EMS Cylinder...

Volvo All Engines (2017 Emissions) Fault Code: P024312 PID: EMS Turbocharger/Supercharger Wastegate Solenoid “A” Conditions for diagnostic trouble code (DTC)Output activatedShort circuit to battery voltage on A14.EB:50 Observable symptomsLow Power Probable cause1) Short circuit to battery voltage, Control wire2) Short circuit in control valve3) Air valve unit Volvo All Engines (2017 Emissions) Fault Code: P024311 PID: EMS Turbocharger/Supercharger Wastegate Solenoid “A” Volvo All Engines (2017 Emissions) Fault Code: P020F25 PID: EMS Cylinder 6 Injection Timing Volvo All Engines (2017 Emissions) Fault Code: P020E25 PID: EMS Cylinder 5 Injection Timing Volvo All Engines (2017 Emissions) Fault Code: P020D25 PID: EMS Cylinder...