When it comes to cars, particularly Subaru vehicles, the Subaru Code P1817 is a common issue that owners may encounter. This code indicates that the input signal circuit of the sport/manual mode switch is shorted, which means that manual mode cannot be set. This can cause the AT OIL TEMP light not to illuminate and no sport mode to occur. Understanding the cause and solution of this issue can help Subaru owners get their car back on the road quickly and without any issues.
Causes and Solutions for Subaru Code P1817
| Cause | Solution |
|---|---|
| Sport/manual mode switch is faulty | Replace the switch |
| Input signal circuit is open | Repair the input signal circuit |
| Input signal circuit is shorted | Replace the input signal circuit |
| AT OIL TEMP light does not illuminate | Check the switch and replace if necessary |
A Faulty Sport/Manual Mode Switch
The most common cause of Subaru Code P1817 is a faulty sport/manual mode switch. This switch is responsible for switching the car between sport mode and manual mode and if it is not functioning properly, it can cause the code to appear. In order to diagnose and fix this issue, the switch must be replaced.
An Open or Shorted Input Signal Circuit
The input signal circuit of the sport/manual mode switch may also be the cause of Subaru Code P1817. If the input signal circuit is open, it can prevent the switch from working correctly and cause the code to appear. To fix this issue, the input signal circuit must be repaired. Alternatively, if the input signal circuit is shorted, it must be replaced.
AT OIL TEMP Light Not Illuminating
Another common cause of Subaru Code P1817 is an AT OIL TEMP light not illuminating. This light is responsible for notifying the driver when the oil temperature is too high and if it is not working, it can cause the code to appear. To diagnose and fix this issue, the switch must be checked and replaced if necessary.
Conclusion:
In conclusion, the Subaru Code P1817 is a common issue that Subaru owners may encounter. This code indicates that the input signal circuit of the sport/manual mode switch is shorted, which means that manual mode cannot be set. The most common causes of this code are a faulty sport/manual mode switch, an open or shorted input signal circuit, or an AT OIL TEMP light not illuminating. Understanding the causes and solutions of this issue can help Subaru owners get their car back on the road quickly and without any issues.
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