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2003 TOYOTA TACOMA
2.7L I4•RWD•AUTOMATIC•gas•3RZ-FE
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor1066Torque2197Fluid17DTC3480Battery2Maintenance0Recalls5
P0990moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch F Circuit Range/Performance

on 2003 Toyota Tacoma 2.7L I4 · RWD

What this code means

The PCM detected that the transmission fluid pressure sensor/switch F signal is outside the expected range. This can lead to poor shift quality and inaccurate pressure control.

Symptoms

  • Poor shift quality
  • Slipping transmission
  • Check engine light on

Common causes

  • Faulty fluid pressure sensor F
  • Low transmission fluid
  • Wiring/connector problem
  • Internal transmission pressure fault

Diagnostic steps

  1. Check transmission fluid level and condition
  2. Scan for pressure sensor codes
  3. Inspect sensor wiring and connector
  4. Compare sensor reading to actual line pressure
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Other Powertrain codes on this vehicle

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