[SOLVED] P1815 Code: Manual Mode Switch – Symptoms, Causes, And Fix

The automobile fault code P1815 indicates a problem with the Manual Mode Switch or Position Select Switch, which are built into the AT control device. The most common symptom is the Engine Light being ON or the Service Engine Soon Warning Light. The cause could be a faulty switch, an open or shorted harness, or a poor electrical connection.

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 on the connectors.

The repair time for this fault code is estimated to be 1.0.

To interpret the fault code, you can refer to the “Possible Causes” listed above.

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

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When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p1815 fault code.

  • The symptoms of the automobile fault code p1815 include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p1815 can be caused by a faulty Manual Mode Switch, Position Select Switch, open or shorted harness, or poor electrical connection.

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  • The fault code P1815 can be caused by a faulty Manual Mode Switch built into the A/T control device.
  • Another cause could be a faulty Position Select Switch also built into the A/T control device.
  • An open or shorted harness for the Manual Mode Switch can also trigger this fault code.
  • Lastly, a poor electrical connection in the Manual Mode Switch circuit can be another potential cause.

To fix the p1815 fault code, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p1815, 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 p1815 are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

The P1815 fault code refers to the Manual Mode Switch in the AT device of the automobile. This switch is responsible for sending signals to the Transmission Control Module (TCM) regarding the manual mode switch, shift up, and shift down. The TCM then transmits these signals to the combination meter through the CAN communication line.

As a result, the AT indicator displays the position of the manual mode switch. The P1815 code specifically indicates an issue with the Manual Mode Switch.

What are the possible causes of the automobile fault code p1815?

If you’re seeing the engine light on or the service engine soon warning light, the fault code P1815 could be the culprit. This code is often caused by a faulty manual mode switch or position select switch, both of which are built into the A/T control device. It could also be due to an open or shorted manual mode switch harness or poor electrical connection in the circuit. To fix this 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 p1815 fault code?

If you’re dealing with the p1815 fault code and notice that your engine light is on, it’s time to take action. The most common causes of this issue are a faulty Manual Mode Switch or Position Select Switch, as well as open or shorted wiring harnesses and poor electrical connections. To fix it, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken or bent pins, corrosion, or components that are pushed out. This simple step can help you identify and resolve the problem.

What should I look for when checking for damaged components and connector’s pins to resolve the p1815 fault code?

When resolving the p1815 fault code, 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 Manual Mode Switch or Position Select Switch, as well as any open or shorted circuits or poor electrical connections. Take the time to thoroughly examine these areas to ensure a proper fix.

p1815 error fault code explained

If your engine light is on or you see the service engine soon warning light, it could be due to a faulty manual mode switch or position select switch built into the AT control device.

To fix this, visually inspect the wiring harness and connectors for any damage or poor electrical connections. Look out for broken, bent, pushed out, or corroded connector pins.

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