Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that the car's computer has detected a problem with a sensor that measures the pressure of the transmission fluid. It's like when a video game controller isn't working right because a button is stuck.
The transmission fluid pressure sensor/switch is responsible for monitoring the pressure of the fluid in the transmission. If the sensor detects a pressure that is lower than expected, it triggers the P0877 code.
The P0877 code indicates that the Powertrain Control Module (PCM) has detected a low voltage signal from the transmission fluid pressure sensor/switch D circuit. This sensor is crucial for ensuring the transmission operates correctly by monitoring the fluid pressure and sending this information to the PCM.
• Check Engine Light is on
• Transmission slipping
• Harsh or delayed shifting
• Faulty transmission fluid pressure sensor
• Damaged or corroded wiring/connectors
• Low transmission fluid level
PCM: Powertrain Control Module, the vehicle's onboard computer
Transmission Fluid: A liquid used to lubricate and cool the components of a vehicle's transmission
• Use an OBD-II scanner to confirm the code
• Inspect the transmission fluid level and condition
• Check the wiring and connectors for damage or corrosion
• Replace the faulty transmission fluid pressure sensor
• Repair or replace damaged wiring/connectors
• Refill or replace transmission fluid if necessary
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Honda Accord
• Regularly check and maintain transmission fluid levels
• Inspect wiring and connectors for damage
• Schedule routine transmission maintenance
Sensor Issue
• Avoid driving the vehicle until the issue is fixed to prevent further damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with your vehicle manufacturer for warranty coverage on transmission components.
This code has been commonly reported in vehicles with higher mileage or those that have not had regular transmission maintenance.
Moderate – Address the issue soon to avoid potential transmission damage.
Ignoring transmission issues can lead to safety hazards and more costly repairs.
• Vehicle must be running
• Transmission fluid at operating temperature
The transmission fluid pressure sensor is typically located on the transmission housing.
Q: Can I drive with a P0877 code?
A: It's not recommended to drive with this code as it may lead to further transmission damage.
Q: How do I clear the P0877 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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