If you see the Engine Light ON or Service Engine Soon Warning Light, it could be due to the P1904 fault code. This code indicates a problem with the Engine Coolant Hydraulic Blower Motor Solenoid, which can be caused by a faulty solenoid, an open or shorted harness, or a poor electrical connection.

It’s important to address this issue promptly, as it can lead to engine overheating and 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 p1904 fault code.

Here are the symptoms to look out for:

  • The P1904 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 reduced power or acceleration, and the engine may stall or hesitate during operation.
  • Additionally, the vehicle may experience decreased fuel efficiency and emit excessive smoke or fumes from the exhaust.

The automobile fault code P1904 can be caused by a faulty blower motor solenoid or related electrical issues.

  • The automobile fault code P1904 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 p1904, including inspecting wiring harness and connectors for damage or corrosion.

  • To fix the automobile fault code P1904, you need to check the possible causes listed above.
  • Visually inspect the related wiring harness and connectors.
  • Look for damaged components and broken, bent, pushed out, or corroded connector’s pins.
  • This fix will take an estimated repair time of 1.0 hour.

The fault code is P1904.

The estimated repair time is 1.0 hour. The cost of fixing the fault code depends on the repair time.

Most auto repair shops charge between $75 and $150 per hour.

Therefore, the fixing cost of P1904 can range from $75 to $150.

The P1904 code is a generic description for an engine coolant hydraulic blower motor solenoid open circuit or short to ground.

However, the manufacturer may have a different description for your specific vehicle. Unfortunately, we do not have any further information on this OBDII code at this time. If you have any questions or concerns, please feel free to post them in the comments section below for more information.

What are the possible causes of the P1904 automobile fault code?

If you’re experiencing the P1904 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 P1904 fault code?

To fix the P1904 fault code, start by checking the possible causes listed above. Then, visually inspect the related wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector’s pins. This will help identify any issues with the Engine Coolant Hydraulic Blower Motor Solenoid harness and circuit connections.

What are the signs of damaged components that I should look for when fixing the P1904 fault code?

If you’re fixing the P1904 fault code, look out for the engine light being on or the service engine soon warning light. The cause could be 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 it, check the possible causes listed above, visually inspect the related wiring harness and connectors, and look for damaged components such as broken, bent, pushed out, or corroded connector pins.

p1904 error fault code explained

If your engine light is on, it may be due to a faulty engine coolant hydraulic blower motor solenoid or related wiring issues. To fix it, visually inspect the wiring harness and connectors for damage or corrosion and check for broken or bent pins.

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