The automobile fault code P1805 indicates a problem with the Stop Lamp Switch. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light.

The cause of this fault code can be a faulty Stop Lamp Switch, an open or shorted Stop Lamp Switch harness, or a poor electrical connection in the Stop Lamp Switch circuit.

To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0 hour. It is important to address this problem 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 p1805 fault code.

  • The symptoms of the automobile fault code P1805 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code P1805 can be caused by a faulty stop lamp switch, an open or shorted stop lamp switch harness, or a poor electrical connection in the stop lamp switch circuit.

  • The fault code P1805 can be caused by the following: a faulty stop lamp switch, an open or shorted stop lamp switch harness, and a poor electrical connection in the stop lamp switch circuit.

To fix the p1805 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1805, 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 P1805 are the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges from $75 to $150.

The P1805 fault code refers to a problem with the stop lamp switch in your vehicle. This switch is responsible for sending a signal to the Engine Control Module (ECM) when the brake pedal is pressed.

The ECM uses this signal to adjust the engine speed while the vehicle is in motion. When the ECM detects a faulty stop lamp switch, it will set the P1805 Diagnostic Trouble Code (DTC).

This code indicates that there is an issue with the stop lamp switch in your vehicle.

What are the possible causes for the automobile fault code P1805 and how can I visually inspect them?

If you’re seeing the engine light on or the service engine soon warning light, the fault code P1805 could be the culprit. This code is often caused by a faulty stop lamp switch, an open or shorted stop lamp switch harness, or a poor electrical connection in the stop lamp switch circuit. To visually inspect these possible causes, check the wiring harness and connectors for any damage. Look out for broken, bent, pushed out, or corroded pins in the connectors. Taking these steps can help you identify and fix the issue.

How does a faulty stop lamp switch contribute to the engine light being on and what steps can I take to fix it?

If you notice that your engine light is on, it could be due to a faulty stop lamp switch. This can happen if the stop lamp switch harness is open or shorted, or if there is a poor electrical connection in the stop lamp switch circuit. To fix this issue, start by checking the possible causes mentioned above. Take a close look at the wiring harness and connectors, and inspect for any damage or corrosion. Also, check if any components are broken, bent, pushed out, or have corroded connector pins.

What should I look for when inspecting the wiring harness and connectors related to the P1805 fault code, and how can I determine if any components are damaged or if there are any connector pin issues?

When inspecting the wiring harness and connectors related to the P1805 fault code, visually inspect for any damaged components and look for broken, bent, pushed out, or corroded connector pins. This can help determine if there are any issues with the wiring harness or connectors. By checking for these issues, you can identify if any components are damaged or if there are any connector pin issues that may be causing the fault code.

p1805 error fault code explained

If your engine light is on, it could be due to a faulty stop lamp switch, an open or shorted stop lamp switch harness, or a poor electrical connection in the stop lamp switch circuit. To fix this issue, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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