P1755 - Transmission Throttle Valve Control Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

P1755 Possible Causes

  • Faulty Transmission Throttle Valve Actuator (TTVA)
  • Transmission Throttle Valve Actuator (TTVA) harness is open or shorted
  • Transmission Throttle Valve Actuator (TTVA) circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How do I fix code P1755?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P1755 code

Labor: 1.0

The cost of diagnosing the P1755 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1755 Description

The transmission throttle valve cable has been replaced by the Transmission Throttle Valve Actuator (TTVA). The TTVA consists of an electric DC motor, two potentiometers, and a gear drive system. The TTVA is mechanically connected to the transmission throttle valve in the valve body by the D shaped opening in the bottom of the TTVA shaft.
The Transmission Throttle Valve Actuator (TTVA) does not require any mechanical adjustments. All changes in throttle valve position are controlled by the Engine Control Module (ECM).
The TTVA does require an initialization period after the actuator has been removed or replaced. After the actuator has been removed or replaced, move the ignition to the ON position for thirty (30) seconds. This will allow the ECM sufficient time to perform the internal calibration procedures to learn the TTVA's current zero position.
OBDII Code P1755 - Transmission Throttle Valve Control Circuit - AutoCodes.com

More Information

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