Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that checks how hot the part of the car that helps it drive all four wheels is getting.
The C0093 code is triggered when the vehicle's computer detects an issue with the temperature sensor in the power transfer unit, which is responsible for monitoring the temperature of the unit that distributes power to all four wheels.
The C0093 code refers to a fault detected in the temperature sensor of the power transfer unit (PTU) in vehicles equipped with four-wheel drive (4WD) or all-wheel drive (AWD) systems. This sensor is crucial for monitoring the operating temperature of the PTU to prevent overheating and potential damage.
• 4WD/AWD system not engaging
• Warning light on the dashboard
• Unusual noises from the drivetrain
• Faulty temperature sensor
• Wiring issues or poor connections
• Malfunctioning power transfer unit
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics in vehicles.
PTU: Power Transfer Unit, a component that distributes power to all four wheels in 4WD/AWD vehicles.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the temperature sensor.
• Test the temperature sensor for proper operation.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Inspect and repair the power transfer unit if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford Explorer
• Jeep Grand Cherokee
• Subaru Outback
• Regular maintenance checks
• Ensure proper fluid levels in the PTU
• Avoid excessive off-road driving without proper inspection
Sensor Issue
• Avoid driving in 4WD/AWD mode until repaired.
• Schedule a service appointment promptly.
Check vehicle warranty for coverage on drivetrain components.
This code has been associated with vehicles that frequently use 4WD/AWD systems under heavy load conditions.
Moderate – Addressing this issue prevents potential damage to the drivetrain.
Driving with a malfunctioning PTU sensor can lead to drivetrain damage and potential safety hazards.
• Vehicle at operating temperature
• 4WD/AWD system engaged
The temperature sensor is located on the power transfer unit, typically near the drivetrain assembly.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to overheating of the power transfer unit, causing severe damage and costly repairs.
Q: Can I drive my car with this code?
A: It's recommended to avoid using 4WD/AWD until the issue is resolved to prevent further damage.
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