What Does P2754 Mean?
The transmission fluid cooler control circuit voltage is lower than expected. The TCM detects insufficient voltage in the circuit that controls the active transmission fluid cooling system, indicating a short to ground or high resistance.
Common Causes
30%
Short to ground in cooler control circuit wiring
30%
Failed cooler control solenoid with internal short
20%
Corroded or damaged connector causing high resistance
15%
Faulty relay or circuit breaker in cooler control circuit
5%
TCM internal driver circuit failure
Diagnostic Steps
1
Step 1: Disconnect cooler control solenoid and measure circuit voltage from TCM
2
Step 2: Check for short to ground in wiring between TCM and solenoid using multimeter
3
Step 3: Measure resistance of cooler control solenoid for short circuit condition
4
Step 4: Inspect connectors for corrosion, moisture, or damaged pins causing low resistance path
5
Step 5: Monitor circuit voltage with scan tool while commanding solenoid operation
Estimated Repair Cost
$180 - $750
Parts + labor, varies by vehicle and location
The transmission fluid cooler control circuit voltage is lower than expected. The TCM detects insufficient voltage in the circuit that controls the active transmission fluid cooling system, indicating a short to ground or high resistance.
The most common cause of P2754 (Transmission Fluid Cooler Control Circuit Low) is: Short to ground in cooler control circuit wiring
Typical repair costs for P2754 range from $180 to $750, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Reduced transmission cooling efficiency may lead to overheating under load. Avoid extended highway driving, towing, or hot weather operation until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P2754 to identify the root cause.
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Quick Info
Category
Powertrain
System
Automatic Transmission Cooling
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
