The automobile fault code P103F indicates a problem with the Reductant Pump and Sensor Assembly.

This can cause the Engine Light to turn on or the Service Engine Soon Warning Light to illuminate. The possible causes include a faulty Reductant Pump and Sensor Assembly, an open or shorted harness, poor electrical connection in the circuit, or a faulty Reductant Control Module. To fix this issue, you should visually inspect the wiring harness and connectors for any damage.

Look for broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0.

It is important to address this problem promptly to prevent further damage to the vehicle.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p103f fault code.

  • The symptoms of the automobile fault code P103F include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p103f can be caused by a faulty Reductant Pump and Sensor Assembly, an open or shorted harness, a poor electrical connection in the circuit, or a faulty Reductant Control Module.

  • The fault code P103F can be caused by a faulty Reductant Pump and Sensor Assembly, an open or shorted harness in the Reductant Pump and Sensor Assembly, a poor electrical connection in the Reductant Pump and Sensor Assembly circuit, or a faulty Reductant Control Module.

To fix the automobile fault code p103f, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p103f, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors for any damage.
  • Look for broken, bent, pushed out, or corroded pins in the connectors.
  • This fix is estimated to take approximately 1.0 hour.

The automobile fault code P103F diagnosis and fixing cost is influenced by the estimated repair time of 1.0 hour.

Auto repair shops typically charge between $75 and $150 per hour for their services.

The P103F fault code refers to a problem with the reductant pump driver in the selective catalytic reduction system.

This system is responsible for reducing emissions of Oxides of Nitrogen (NOx) by injecting a controlled amount of reductant into the exhaust gas stream. The reductant reacts with the NOx to convert it into nitrogen, carbon dioxide, and water vapor. The Engine Control Module (ECM) monitors the engine-out NOx levels and adjusts the duty cycle of the reductant injector accordingly.

The reductant control module supplies power to the reductant pump motor and controls the solenoid by grounding the control circuit. It also monitors the feedback voltage to detect any issues with the control circuit. The P103F fault code is triggered when the reductant control module detects a high temperature in the motor pump driver. This could indicate a problem with the driver circuit, such as an open circuit, a short to ground, or a short to voltage.

It is important to address this issue promptly to ensure proper functioning of the selective catalytic reduction system and reduce emissions effectively.

What are the possible causes for the automobile fault code p103f?

If you’re seeing the engine light on or the service engine soon warning light, the fault code P103F could be the culprit. This code is often caused by a faulty reductant pump and sensor assembly, an open or shorted harness, a poor electrical connection in the assembly circuit, or a faulty reductant control module. To fix the issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors to fix the fault code p103f?

To fix fault code p103f, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check if there are any broken, bent, pushed out, or corroded pins in the connectors. This can help identify if the reductant pump and sensor assembly harness is open or shorted, if there is a poor electrical connection in the circuit, or if the reductant control module is faulty. Take a close look to ensure everything is in proper working order.

What should I look for when checking for damaged components and connector’s pins to resolve the fault code p103f?

When troubleshooting the fault code p103f, start by checking for damaged components and connector’s pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded pins. By doing so, you can identify any issues with the reductant pump and sensor assembly, as well as the reductant control module. This step is crucial in resolving the engine light or service engine soon warning light.

p103f error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, the issue could be a faulty Reductant Pump and Sensor Assembly, an open or shorted harness, a poor electrical connection in the assembly circuit, or a faulty Reductant Control Module. To fix it, visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins.

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