OBD Guide
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P1755

Transmission Throttle Valve Control Circuit

P1755 is an OBD-II diagnostic trouble code meaning: Transmission Throttle Valve Control Circuit. Common causes: open or short circuit in control circuit, throttle solenoid malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • The car jerks when changing gears
  • The gearbox goes into emergency mode
  • Increased idle speed
  • Check Engine light comes on
  • Acceleration problems

Causes

  • Open or short circuit in control circuit
  • Throttle solenoid malfunction
  • Problems with the automatic transmission control unit
  • Mechanical sticking of the throttle valve
  • Poor contact in connectors

How to Fix

  1. Check the integrity of wiring and connectors
  2. Test solenoid resistance
  3. Check the operation of the throttle valve mechanically
  4. Scan the automatic transmission control unit for additional errors
  5. Replace solenoid or wiring harness if necessary

Related codes

P1756P1757P1760

FAQ

What does the P1755 code mean?

P1755 is an OBD-II diagnostic trouble code that indicates: Transmission Throttle Valve Control Circuit

What causes a P1755 error code?

The most common causes of P1755 include: Open or short circuit in control circuit; Throttle solenoid malfunction; Problems with the automatic transmission control unit; Mechanical sticking of the throttle valve.

How do I fix a P1755 diagnostic trouble code?

To fix P1755: Check the integrity of wiring and connectors. Test solenoid resistance. Check the operation of the throttle valve mechanically. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1755?

Limited driving only, diagnose soon

How much does it cost to fix P1755?

The estimated repair cost for P1755 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat