P0987
Transmission Fluid Pressure Sensor/Switch E Circuit
Transmission
Generic OBD-II
Medium
What it means
P0987 means the transmission control module detected a fault in the circuit for fluid pressure sensor/switch E, which reports hydraulic pressure used to time and firm up shifts. With bad pressure feedback the transmission may shift harshly or enter limp mode. It's most often a wiring, connector, or sensor fault, though low fluid can contribute.
Medium
Can I keep driving? Usually drivable, but shift quality may suffer or the transmission may enter limp mode — have it diagnosed before long trips.
Common symptoms
What you'll notice
- Check-engine light on
- Harsh, erratic, or delayed shifting
- Transmission slipping or delayed engagement
- Limp mode on some vehicles
Common causes
Most likely first
- Faulty transmission fluid pressure sensor/switch ELikely
- Damaged, shorted, or corroded wiring in the sensor circuitCommon
- Loose or broken connector at the transmissionCommon
- Low or contaminated transmission fluid affecting real pressureLess often
- Failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and note fluid level and condition first.
- Inspect the sensor connector and harness for damage, corrosion, or shorts.
- Compare the pressure sensor's signal to spec; replace the sensor/switch if faulty.
- If wiring and sensor are good, have the TCM and hydraulic pressure evaluated. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0987?+
Short trips are usually fine, but the transmission may shift poorly or drop into limp mode. Because it can mask a real pressure problem, get it checked soon.
Can I just clear P0987?+
It returns until the sensor or its wiring is repaired. Start by confirming fluid level and condition.
Related codes
Often seen with P0987
Read & clear P0987 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX