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1998 TOYOTA TACOMA
2.7L I4•RWD•AUTOMATIC•gas
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor1047Torque1633Fluid17DTC3334Battery2Maintenance0Recalls5
P0879moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch D Circuit

on 1998 Toyota Tacoma 2.7L I4 · RWD

What this code means

A fault has been detected in the transmission fluid pressure sensor or switch D circuit. This can compromise shift quality and pressure regulation.

Symptoms

  • Transmission warning light
  • Poor shift quality
  • Pressure sensor codes stored

Common causes

  • Defective pressure sensor/switch
  • Damaged wiring or connector
  • Corroded ground
  • Faulty control module

Diagnostic steps

  1. Scan for related codes
  2. Inspect circuit wiring and connectors
  3. Measure sensor signal voltage
  4. Test control module inputs
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Other Powertrain codes on this vehicle

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