Engine-CodesSubaru – P1698 Subaru

P1698 Subaru Code - Engine Torque Control Cut Signal Circuit Low Input

Quick Answer

The P1698 Subaru code indicates a low input signal in the engine torque control cut signal circuit. Common causes include Faulty engine torque control cut signal circuit, Loose or corroded wiring connections, Malfunctioning engine control module (ECM). 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
P1698 Subaru indicates Engine Torque Control Cut Signal Circuit Low Input.
Common causes
Common causes include Faulty engine torque control cut signal circuit, Loose or corroded wiring connections, Malfunctioning engine control module (ECM).
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P1698 Subaru Description

The P1698 Subaru code indicates a low input signal in the engine torque control cut signal circuit. This circuit is responsible for communicating with the engine control module (ECM) to regulate the engine torque output. When the signal is too low, it can affect the vehicle's performance by causing issues with acceleration, fuel efficiency, and overall power delivery. This could potentially lead to rough idling, stalling, or hesitation during acceleration. If not addressed, it can also cause long-term damage to the engine's components and negatively impact the vehicle's drivability.

OBDII Code P1698 Subaru - Engine Torque Control Cut Signal Circuit Low Input
P1698 Subaru Code - Engine Torque Control Cut Signal Circuit Low Input

Common Causes of P1698 Subaru

  1. Faulty engine torque control cut signal circuit
  2. Loose or corroded wiring connections
  3. Malfunctioning engine control module (ECM)
  4. Sensor issues, such as a faulty throttle position sensor
  5. Electrical issues, such as a blown fuse or relay

Symptoms of P1698 Subaru

  1. Rough idling
  2. Stalling
  3. Hesitation during acceleration
  4. Decreased fuel efficiency
  5. Loss of power

How to Fix P1698 Subaru

  1. Perform a thorough inspection of the engine torque control cut signal circuit and wiring connections.
  2. Test the throttle position sensor and other related sensors for proper functionality.
  3. Check and replace any blown fuses or faulty relays.
  4. Reset the ECM and clear the trouble code.
  5. Test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1698 Subaru

The cost of repairing a P1698 Subaru code can vary depending on the specific cause of the issue. On average, the repair costs for this type of issue can range from $150 to $500, including parts and labor. It's always recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates can vary, so it's best to inquire with local shops for the most accurate pricing information.

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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 P1698 Subaru Code

1. What are common symptoms of OBDII code P1698 in a Subaru related to the Engine Torque Control Cut Signal Circuit Low Input?

The common symptoms include poor engine performance, reduced power, engine stalling, and the vehicle going into limp mode.

2. What are the possible causes of OBDII code P1698 in a Subaru?

The code P1698 in a Subaru can be caused by issues such as a faulty torque control signal circuit, damaged wiring harness, loose connections, or a defective engine control module (ECM).

3. How can I diagnose the OBDII code P1698 in my Subaru?

Diagnosing the code P1698 involves performing a thorough inspection of the torque control signal circuit, checking the wiring for any damage or loose connections, and testing the ECM for proper functionality using a diagnostic scanner.

4. Can a DIY enthusiast repair OBDII code P1698 in a Subaru at home?

While some basic inspections like checking for loose connections or damaged wiring can be done at home, repairing OBDII code P1698 often requires advanced diagnostic tools and expertise. It is recommended to seek professional help for a proper diagnosis and repair.

5. Is it safe to continue driving my Subaru with OBDII code P1698 present?

It is not advisable to continue driving your Subaru with the OBDII code P1698 present, as it can lead to further engine damage, reduced fuel efficiency, or safety hazards due to poor performance.

6. How much does it typically cost to repair OBDII code P1698 in a Subaru?

The cost of repairing OBDII code P1698 in a Subaru can vary depending on the exact cause of the issue, but it usually ranges from $200 to $800, including parts and labor.

7. Can a bad sensor trigger OBDII code P1698 in a Subaru?

While a faulty sensor may not directly trigger OBDII code P1698, it can contribute to issues with the torque control system, leading to the code being generated. It's essential to diagnose the root cause accurately.

8. Are there any preventive maintenance tips to avoid OBDII code P1698 in a Subaru?

To prevent OBDII code P1698 in a Subaru, regular maintenance, such as checking and cleaning electrical connections, inspecting wiring harnesses for damage, and addressing any engine performance issues promptly, can help avoid potential problems.

9. Will resetting the OBDII codes make OBDII code P1698 disappear temporarily?

Resetting the OBDII codes may temporarily clear the code P1698, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces. It is crucial to diagnose and repair the root cause of the code.

10. Can extreme weather conditions affect OBDII code P1698 in a Subaru?

Extreme weather conditions, such as severe cold or heat, can potentially exacerbate existing issues related to OBDII code P1698 in a Subaru, leading to electrical connections becoming loose or wiring damage. Regular inspections and maintenance are crucial in such conditions.

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