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 a signal that the pressure of the transmission fluid is too low. It's like when a balloon doesn't have enough air in it.
The transmission fluid pressure sensor/switch C is responsible for monitoring the pressure of the transmission fluid. A low circuit signal indicates that the sensor is detecting lower than expected pressure.
P0872 is triggered when the Powertrain Control Module (PCM) detects a low voltage signal from the transmission fluid pressure sensor/switch C. This could indicate a problem with the sensor itself, the wiring, or the actual fluid pressure being too low.
• Check Engine Light illuminated
• Transmission slipping
• Harsh or delayed shifting
• Faulty transmission fluid pressure sensor/switch
• Low transmission fluid level
• Wiring issues such as shorts or open circuits
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Check transmission fluid level and condition
• Inspect wiring and connectors for damage or corrosion
• Test the transmission fluid pressure sensor/switch
• Refill or replace transmission fluid
• Repair or replace damaged wiring or connectors
• Replace the transmission fluid pressure sensor/switch
• OBD-II scanner
• Multimeter
• Transmission fluid pressure gauge
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly check and maintain transmission fluid levels
• Perform scheduled transmission maintenance
• Inspect wiring and connectors periodically
Sensor Issue
• Do not ignore the Check Engine Light
• Have the vehicle inspected by a professional if unsure
• Avoid harsh driving conditions until repaired
Check with the vehicle manufacturer for specific warranty coverage related to the transmission system.
This code has been common in vehicles with aging transmission systems, especially those not regularly maintained.
Moderate – It's important to address this issue to prevent further transmission damage.
Driving with a faulty transmission can lead to unsafe driving conditions. Address this issue promptly.
• Vehicle must be driven to replicate the issue
• Transmission fluid should be at operating temperature
The transmission fluid pressure sensor is typically located on the transmission housing.
Q: Can I drive with a P0872 code?
A: It's not recommended to drive for extended periods with this code as it may cause further transmission damage.
Q: How do I know if the sensor is faulty?
A: A diagnostic test using a multimeter and pressure gauge can determine if the sensor is faulty.
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