Engine-CodesGeneric – P1755

P1755 Code - Transmission Throttle Valve Control Circuit

Quick Answer

The P1755 code indicates a problem with the transmission throttle valve control circuit. Common causes include Faulty throttle valve position sensor, Wiring issues in the transmission throttle valve control circuit, Malfunctioning transmission control module. 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
P1755 indicates Transmission Throttle Valve Control Circuit.
Common causes
Common causes include Faulty throttle valve position sensor, Wiring issues in the transmission throttle valve control circuit, Malfunctioning transmission control module.
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 P1755 Description

The P1755 code indicates a problem with the transmission throttle valve control circuit. This circuit is responsible for regulating the flow of hydraulic fluid within the transmission, which in turn controls the shifting of gears. When this circuit malfunctions, it can lead to a variety of issues with the transmission, ultimately impacting the vehicle's performance and drivability.

OBDII Code P1755 - Transmission Throttle Valve Control Circuit
P1755 Code - Transmission Throttle Valve Control Circuit

Common Causes of P1755

  1. Faulty throttle valve position sensor
  2. Wiring issues in the transmission throttle valve control circuit
  3. Malfunctioning transmission control module
  4. Hydraulic system problems
  5. Corrosion or damage to electrical connectors

Symptoms of P1755

  1. Erratic shifting behavior
  2. Delayed or harsh gear shifts
  3. Transmission slipping
  4. Reduced fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P1755

  1. Diagnose the issue using a scan tool to retrieve the fault code and perform a visual inspection of the transmission throttle valve control circuit.
  2. Test the throttle valve position sensor and check for proper voltage and resistance readings.
  3. Inspect the wiring and connectors for any signs of damage, corrosion, or poor connections.
  4. Replace any faulty components, such as the throttle valve position sensor or damaged wiring.
  5. Clear the fault code and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P1755

The cost of repairing a P1755 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the parts required for this repair, such as a throttle valve position sensor or wiring harness, can range from $50 to $200. Labor costs for this type of repair typically fall between $100 and $300, with total repair costs ranging from $150 to $500 or more.

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Code P1755 Information for Specific Makes

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.

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