When you see the automobile fault code P1804, it means that there is an issue with the Transmission 4-Wheel Drive High Indicator. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light appearing.

This fault code can be caused by a faulty indicator, an open or shorted harness, or a poor electrical connection in the indicator circuit. To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or corrosion.

Look out 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’s important to address this fault code promptly to ensure the proper functioning of your 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 p1804 fault code.

  • The symptoms of the automobile fault code P1804 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code P1804 can be caused by a faulty Transmission 4-Wheel Drive High Indicator, an open or shorted harness, or a poor electrical connection in the indicator circuit.

  • The fault code P1804 can be caused by a faulty Transmission 4-Wheel Drive High Indicator.
  • It can also be caused by an open or shorted harness in the Transmission 4-Wheel Drive High Indicator circuit.
  • Additionally, a poor electrical connection in the Transmission 4-Wheel Drive High Indicator circuit can also trigger this fault code.

To fix the automobile fault code p1804, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1804, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code P1804 are the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P1804 code refers to a Transmission 4-Wheel Drive High Indicator Circuit Failure. This means that there is an issue with the circuit that controls the indicator for the 4-wheel drive high mode in your vehicle’s transmission. It is important to note that the specific description for this code may vary depending on the make and model of your vehicle.

Unfortunately, we do not have any additional information about this code at the moment. If you have any questions or need further assistance, please feel free to ask in the comments section below.

What are the possible causes of the P1804 fault code and how can I visually inspect them?

If you’re experiencing the P1804 fault code with your vehicle, indicated by the Engine Light or Service Engine Soon Warning Light being on, there are a few possible causes to consider. One potential culprit could be a faulty Transmission 4-Wheel Drive High Indicator. Another possibility is that the Transmission 4-Wheel Drive High Indicator harness is open or shorted, or there may be a poor electrical connection in the circuit. To visually inspect these potential causes, check the related wiring harness and connectors for any signs of damage. Additionally, look out for broken, bent, pushed out, or corroded pins on the connectors.

How can a faulty Transmission 4-Wheel Drive High Indicator affect the engine light and what steps can I take to fix it?

If you notice the engine light or service engine soon warning light is on, it could be due to a faulty Transmission 4-Wheel Drive High Indicator. This can be caused by an open or shorted harness or a poor electrical connection in the indicator circuit. To fix it, 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.

What should I look for when inspecting the wiring harness and connectors related to the Transmission 4-Wheel Drive High Indicator to resolve the P1804 fault code?

When inspecting the wiring harness and connectors related to the Transmission 4-Wheel Drive High Indicator to resolve the P1804 fault code, there are a few things to look for. Visually inspect the wiring harness and connectors for any signs of damage. Check for broken, bent, pushed out, or corroded connector pins. These issues can cause a poor electrical connection and result in the faulty indicator. By checking and addressing these possible causes, you can resolve the issue and turn off the Engine Light or Service Engine Soon Warning Light.

p1804 error fault code explained

If your engine light is on and you’re seeing the P1804 fault code, it could be due to a faulty Transmission 4-Wheel Drive High Indicator or issues with the indicator’s wiring harness and circuit connection. To fix it, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Look out for broken or bent pins as well.

Scroll to Top