OBD Guide

P2755

Transmission Fluid Cooler Control Circuit High

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

Symptoms

  • Check Engine light comes on
  • The transmission goes into emergency mode
  • Increased transmission fluid temperature
  • Deterioration of gear shifting
  • Reduced transmission cooling efficiency

Causes

  • Open or short circuit in control circuit
  • Cooler relay malfunction
  • Control Solenoid Problems
  • TCM malfunction
  • Wiring harness damage

How to Fix

  1. Check the integrity of the cooler control circuit
  2. Check the operation of the cooler relay
  3. Test control solenoid
  4. Check the condition of the wiring harness
  5. If necessary, replace faulty components

Related codes

Error P2755 by Vehicle Brand