Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting confusing temperature readings from the sensors that check the transmission fluid and the computer's own temperature. It's like the car's brain is getting mixed signals about how hot things are.
The P183C code is triggered when there is a discrepancy between the readings of the transmission fluid temperature sensor and the TCM (Transmission Control Module) internal temperature sensor, especially at higher temperatures.
The Transmission Control Module (TCM) monitors the temperature of the transmission fluid to ensure optimal performance and to prevent overheating. A correlation error in the upper temperature range indicates that the TCM is receiving inconsistent data from the transmission fluid temperature sensor and its internal temperature sensor, which may affect the transmission's operation.
• Check Engine Light is on
• Transmission overheating warning
• Erratic shifting or transmission performance
• Transmission going into limp mode
• Faulty transmission fluid temperature sensor
• Faulty TCM internal temperature sensor
• Wiring issues or poor connections
• Software glitch in the TCM
• Overheating transmission
TCM: Transmission Control Module, the computer that controls the transmission.
OBD-II: On-Board Diagnostics, a system for self-diagnosing and reporting vehicle issues.
• Use an OBD-II scanner to confirm the P183C code
• Inspect the wiring and connectors for damage or corrosion
• Test the transmission fluid temperature sensor
• Check the TCM for any software updates or faults
• Monitor the temperature readings from both sensors
• Replace the faulty transmission fluid temperature sensor
• Repair or replace damaged wiring or connectors
• Update or reprogram the TCM if necessary
• Replace the TCM if it is faulty
• OBD-II scanner
• Multimeter
• Wiring repair tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular transmission fluid checks and changes
• Ensure proper cooling system function
• Routine vehicle maintenance
Sensor Issue
• Do not ignore the Check Engine Light
• Get the vehicle inspected by a professional
• Avoid heavy towing or driving in hot conditions until fixed
Check with your vehicle manufacturer; some powertrain warranties may cover sensor issues.
This code has been reported in vehicles with higher mileage or those that frequently tow heavy loads.
Moderate – While the vehicle may still operate, ignoring the issue could lead to transmission damage.
Driving with a faulty transmission sensor can lead to unsafe driving conditions. It is recommended to address the issue promptly.
• Vehicle at operating temperature
• Transmission fluid level is correct
The transmission fluid temperature sensor is typically located in the transmission pan or near the transmission cooler lines.
Q: Can I drive with a P183C code?
A: It's not recommended to drive for long periods with this code, as it may lead to transmission damage.
Q: How is the transmission fluid temperature sensor tested?
A: A multimeter can be used to check the sensor's resistance and compare it to the manufacturer's specifications.
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