If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the P1903 fault code. This code indicates a problem with the Engine Coolant Hydraulic Blower Motor Solenoid, which could be faulty or have an open or shorted harness. The cause could also be a poor electrical connection in the solenoid circuit.

It’s important to address this issue promptly as it could lead to engine damage. The repair time for this fault code is estimated at 1.0, and the fix involves visually inspecting the wiring harness and connectors, checking for damaged components, and looking for broken, bent, pushed out, or corroded connector’s pins.

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

If you notice the Engine Light ON (or Service Engine Soon Warning Light), it could be due to the p1903 fault code. Here are the symptoms to look out for:

  • The P1903 fault code in an automobile can cause several symptoms, including the engine light turning on or the service engine soon warning light appearing.
  • Other symptoms may include issues with the transmission, such as difficulty shifting gears or the transmission slipping.
  • The vehicle may also experience a decrease in fuel efficiency or a loss of power while driving.
  • Additionally, the car may emit unusual smells or sounds, and the engine may run roughly or stall.
  • It is important to address these symptoms promptly to prevent further damage to the vehicle.

The automobile fault code P1903 can be caused by a faulty blower motor solenoid or related electrical issues.

  • The automobile fault code P1903 can be caused by a faulty engine coolant hydraulic blower motor solenoid.
  • It can also be caused by an open or shorted engine coolant hydraulic blower motor solenoid harness.
  • Additionally, a poor electrical connection in the engine coolant hydraulic blower motor solenoid circuit can also trigger this fault code.

Below are the possible fixes for the automobile fault code p1903, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code P1903, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors for any damage.
  • Look for broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The fault code P1903 indicates a malfunction in the engine’s intake manifold runner control circuit.

The estimated repair time for this fault is 1.0 hour. The cost of fixing this fault is influenced by the hourly rate charged by the auto repair shop, which is typically between $75 and $150 per hour.

Other factors that may affect the cost include the severity of the fault, the type of vehicle, and the availability of replacement parts.

The P1903 code is related to the engine coolant hydraulic blower motor solenoid.

It indicates a short circuit to the positive side of the solenoid. This fault code is a generic description, and the manufacturer may have a different description for your specific vehicle. Unfortunately, we do not have any further information about this code at this time.

If you have any questions or concerns, please feel free to post them in the comments section below.

What are the possible causes of the P1903 automobile fault code?

If you’re experiencing the P1903 fault code, your engine light may be on. This could be due to a faulty engine coolant hydraulic blower motor solenoid, an open or shorted solenoid harness, or a poor electrical connection in the solenoid circuit. To fix the issue, visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the related wiring harness and connectors to fix the P1903 fault code?

If you’re experiencing an Engine Light ON or Service Engine Soon Warning Light due to a P1903 fault code, you may need to visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. This will help you identify if the Engine Coolant Hydraulic Blower Motor Solenoid harness is open or shorted, or if there is a poor electrical connection in the circuit. Once you’ve identified the issue, you can take the necessary steps to fix it.

What are the symptoms of the P1903 automobile fault code and how can I identify them?

If you notice the Engine Light ON or Service Engine Soon Warning Light, it could be a symptom of the P1903 automobile fault code. This code is caused by a faulty Engine Coolant Hydraulic Blower Motor Solenoid, an open or shorted harness, or a poor electrical connection. To fix it, you should visually inspect the wiring harness and connectors, check for damaged components, and look for broken, bent, pushed out, or corroded connector’s pins.

p1903 error fault code explained

If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to a faulty Engine Coolant Hydraulic Blower Motor Solenoid or related wiring issues.

Visually inspect the wiring harness and connectors for damage or corrosion. Check for broken, bent, or pushed out connector pins.

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