The P0987: Transmission Fluid Pressure Sensor/Switch ‘E’ Circuit refers to an issue with the transmission fluid pressure sensor or switch ‘E’. This can result from a faulty sensor, wiring problems, or issues with the transmission fluid pressure itself, which could affect transmission operation.
P0987 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0987: Transmission Fluid Pressure Sensor/Switch ‘E’ Circuit |
| Is it serious? | Yes, as transmission fluid pressure issues can lead to improper shifting and potential transmission damage. |
| Possible causes | – Faulty transmission fluid pressure sensor/switch ‘E’ – Wiring or connector issues – Transmission fluid pressure issues |
| How to diagnose? | – Inspect the transmission fluid pressure sensor/switch ‘E’ – Check wiring and connectors – Replace the transmission fluid pressure sensor/switch ‘E’ if needed |
P0987 Meaning
The P0987: Transmission Fluid Pressure Sensor/Switch ‘E’ Circuit code indicates that there is a problem with the transmission fluid pressure sensor or switch ‘E’. This sensor monitors fluid pressure in the transmission and provides feedback to ensure proper shifting. A malfunction in the circuit can lead to poor transmission performance, such as delayed or rough shifting.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for additional fault codes that may provide more insight into the issue. | OBD-II Scanner |
| Inspect the Sensor/Switch | Visually inspect the transmission fluid pressure sensor/switch ‘E’ for signs of wear, damage, or fluid leaks. | Flashlight, Safety Gloves |
| Test the Sensor/Switch | Use a diagnostic tool to test the transmission fluid pressure sensor/switch ‘E’ for proper operation. Replace if it is faulty. | Diagnostic Tool |
| Inspect Wiring and Connectors | Check the wiring and connectors for corrosion, damage, or loose connections that could be affecting the sensor’s signal. | Flashlight, Multimeter |
| Check Transmission Fluid Pressure | Verify that the transmission fluid pressure is within the manufacturer’s specified range, as low or high pressure could trigger this code. | Pressure Gauge, Transmission Fluid |
| Clear the Code and Test Drive | After completing repairs, clear the code using an OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the system to ensure the P0987 code does not reappear after the test drive. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko