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P0987 OBD-II Trouble Code: Transmission Fluid Pressure Sensor/Switch E Circuit

diagnostic check engine light

P0987 code definition

The P0987 code is a generic powertrain code related to the transmission, including pressure faults and sensor failures. In this case, the engine control module (ECM) has detected a fault with the transmission fluid pressure sensor/switch in the E Circuit.

Codes related to the P0987 include:

What the P0987 code means

A P0987 code is stored when the ECM receives a voltage signal from the transmission fluid pressure sensor that is outside of allowed preset parameters. In this case, the ECM has detected a fault with the E circuit. Check your vehicle’s service manual for the specifics on how to locate the E circuit for your vehicle’s particular make and model.

What causes the P0987 code?

Several problems may cause a P0987 code including:

What are symptoms of the P0987 code?

Symptoms of a P0987 code may include:

  • Check engine or warning light may illuminate
  • Vehicle may shift roughly
  • Vehicle may not shift at all
  • There may be no symptoms other than a stored P0987 trouble code

How does a mechanic diagnose the P0987 code?

A mechanic may use several methods to diagnose a P0987 trouble code, including: * Utilize an OBD-II scanner to check for a stored P0987 trouble code * Check the transmission fluid level * Check the transmission fluid quality * If the transmission fluid is dirty, check the transmission pan for signs of debris or contamination * Visually inspect all related wiring, connectors, and related components for signs of damage * Using a digital volt/ohmmeter, the resistance of the fluid pressure sensor/switch for E Circuit

How serious is the P0987 code?

Because a vehicle’s safe driving operation most likely will not be impacted due to faults that store a P0987 code, this code is not considered a potentially serious code. When this code appears, it is recommended to take your vehicle to your local service center or mechanic for repair and diagnosis as soon as possible.

What repairs can fix the P0987 code?

Several repairs can fix a P0987 trouble code and include:

Need help with a P0987 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

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