OBD Guide

P2754

Transmission Fluid Cooler Control Circuit Low

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

Symptoms

  • Check Engine light comes on
  • The gearbox goes into emergency mode
  • Increased transmission fluid temperature
  • Reduced shift efficiency
  • Possible jerking when changing gears

Causes

  • Open or short circuit in cooler control circuit
  • Faulty transmission fluid cooler relay
  • Transmission control module (TCM) problems
  • Malfunction of the transmission fluid cooler itself
  • Poor contact in connectors or corrosion of contacts

How to Fix

  1. Check the integrity of the cooler control circuit
  2. Check the functionality of the cooler relay
  3. Diagnose the transmission control module (TCM)
  4. Check the condition of the transmission fluid cooler
  5. Clean contacts and check connections in connectors

Related codes

Error P2754 by Vehicle Brand