P0990
Transmission Fluid Pressure Sensor/Switch E Circuit High
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0990 means
- The fault code P0990 indicates a high voltage condition in the circuit of transmission fluid pressure sensor/switch 'E'. This sensor/switch is responsible for monitoring the fluid pressure within the transmission. A high voltage in the circuit can indicate a problem with the sensor/switch or a fault in the wiring.
Possible symptoms
- Malfunction Indicator Lamp (MIL) or Check Engine Light illuminated.
- Abnormal transmission shifting behavior.
- Harsh or delayed shifting between gears.
- Erratic or unpredictable gear changes.
- Reduced performance or power from the transmission.
- Other associated transmission
- related fault codes may be present.
- No noticeable drivability issues are typically associated with this fault code.
Possible causes
- Faulty transmission fluid pressure sensor/switch 'E'
- Wiring or electrical connection issues in the circuit
- Short circuit to power in the circuit
- Malfunctioning transmission control module (TCM)
- Problems with the transmission fluid pump
Related parts
- Hydraulic Pressure Sensor: Hydraulic oil is needed for the gear lubrication system. This sensor measures oil pressure. This car's sensor has a problem which may cause difficulty in shifting gears
Possible solutions
- Inspect the wiring and electrical connections in the circuit for any damage, loose connections, or corrosion. Repair or replace as necessary.
- Test and replace the faulty transmission fluid pressure sensor/switch 'E', if necessary.
- Check for any short circuits to power in the circuit and repair as needed.
- Verify the functionality of the transmission control module (TCM). Replace if it is defective.
- Inspect the transmission fluid pump for any issues or malfunctions. Repair or replace as necessary.
Free on OBD DashX
P0990 on OBD DashX
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