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P1595 Subaru Code - Automatic Transmission Diagnosis Input Signal Circuit Low Input

Quick Answer

The P1595 Subaru code indicates a problem with the Automatic Transmission Diagnosis Input Signal Circuit being low input. Common causes include Faulty transmission control module, Damaged wiring or connectors in the input signal circuit, Malfunctioning sensor related to the automatic transmission. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1595 Subaru indicates Automatic Transmission Diagnosis Input Signal Circuit Low Input.
Common causes
Common causes include Faulty transmission control module, Damaged wiring or connectors in the input signal circuit, Malfunctioning sensor related to the automatic transmission.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1595 Subaru Description

The P1595 Subaru code indicates a problem with the Automatic Transmission Diagnosis Input Signal Circuit being low input. In simpler terms, this means that there is a fault in the communication between the automatic transmission and the vehicle's onboard computer system. The automatic transmission relies on various signals to operate smoothly, and when the input signal is too low, it can lead to issues with shifting gears, performance, and overall drivability of the vehicle.

OBDII Code P1595 Subaru - Automatic Transmission Diagnosis Input Signal Circuit Low Input
P1595 Subaru Code - Automatic Transmission Diagnosis Input Signal Circuit Low Input

Common Causes of P1595 Subaru

  1. Faulty transmission control module
  2. Damaged wiring or connectors in the input signal circuit
  3. Malfunctioning sensor related to the automatic transmission
  4. Corrosion or moisture in the transmission system
  5. Electrical issues in the vehicle's onboard computer system

Symptoms of P1595 Subaru

  1. Erratic shifting or hesitation when changing gears
  2. Transmission slipping or not engaging properly
  3. Check Engine Light illuminated on the dashboard
  4. Reduced fuel efficiency
  5. Harsh or rough driving conditions

How to Fix P1595 Subaru

  1. Diagnose the specific cause of the low input signal by using a scan tool to read the fault codes and testing the transmission system components.
  2. Inspect the wiring and connectors in the input signal circuit for any damage or corrosion. Repair or replace as necessary.
  3. Check the transmission control module for faults or malfunctions. Replace if needed.
  4. Test the sensors related to the automatic transmission to ensure they are functioning correctly. Replace any faulty sensors.
  5. Clear the fault codes and reset the system to see if the issue has been resolved. Test drive the vehicle to confirm proper operation.

Cost to Fix P1595 Subaru

The typical repair costs for addressing a P1595 Subaru code can range from $200 to $600, depending on the specific cause of the issue and the labor rates at the auto repair shop. This estimate includes the cost of parts such as sensors, wiring, connectors, and potentially a new transmission control module. It's important to note that the actual cost can vary based on the location, vehicle make and model, and the extent of the repair needed. It's recommended to consult with a professional mechanic for an accurate cost estimate based on your unique situation.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1595 Subaru Code

1. What are the common symptoms of OBDII code P1595 in a Subaru related to the Automatic Transmission Diagnosis Input Signal Circuit Low Input?

- Common symptoms include issues with shifting gears smoothly, harsh shifting, delayed engagement, and the transmission going into limp mode.

2. What are some possible causes of OBDII code P1595 in a Subaru?

- The code P1595 in a Subaru may be caused by a faulty transmission range sensor, damaged wiring or connectors in the input signal circuit, or a malfunctioning TCM (Transmission Control Module).

3. How can I diagnose the OBDII code P1595 in my Subaru?

- To diagnose the code P1595, you can start by checking the transmission range sensor for proper operation, inspecting the wiring and connectors for damage, and using a diagnostic scanner to read the TCM for any specific error codes.

4. How serious is OBDII code P1595 in a Subaru?

- OBDII code P1595 related to the Automatic Transmission Diagnosis Input Signal Circuit Low Input should be addressed promptly to prevent further damage to the transmission system and ensure safe driving conditions.

5. Can I continue driving my Subaru with OBDII code P1595 present?

- It is not recommended to continue driving your Subaru with OBDII code P1595 present, as it can lead to potential transmission issues and safety concerns. It is best to address the problem as soon as possible.

6. Is it possible to repair OBDII code P1595 in a Subaru on my own?

- Depending on your automotive repair skills and access to tools, you may be able to address the OBDII code P1595 in your Subaru on your own by checking and repairing the transmission range sensor, wiring, or connectors. However, professional help may be required for more complex issues.

7. How much does it typically cost to repair OBDII code P1595 in a Subaru?

- The cost of repairing OBDII code P1595 in a Subaru can vary depending on the root cause of the issue, labor costs in your area, and whether you choose to go to a dealership or an independent mechanic. It is advisable to get multiple quotes for an accurate estimate.

8. Can resetting the OBDII code P1595 in a Subaru solve the issue temporarily?

- Resetting the OBDII code P1595 may temporarily clear the error code, but if the underlying issue such as a faulty transmission range sensor or damaged wiring is not addressed, the code is likely to reappear and cause further problems.

9. How long does it take to repair OBDII code P1595 in a Subaru?

- The time it takes to repair OBDII code P1595 in a Subaru can vary depending on the specific cause of the issue, the availability of parts, and the expertise of the mechanic. It could range from a few hours to a full day or more.

10. What are some preventive maintenance tips to avoid OBDII code P1595 in a Subaru?

- To prevent OBDII code P1595 in a Subaru, it is important to maintain your vehicle regularly, address any transmission-related issues promptly, and avoid rough driving habits that can put unnecessary strain on the transmission system.

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