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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
P0843moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch A Circuit High

on 1998 Toyota Tacoma 2.7L I4 · RWD

What this code means

The PCM detected a voltage higher than expected in the transmission pressure sensor A circuit. This may point to an open circuit or short to voltage.

Symptoms

  • Harsh shifts
  • Transmission warning light
  • Delayed engagement

Common causes

  • Open circuit in wiring
  • Short to power
  • Faulty pressure sensor
  • Poor connector contact

Diagnostic steps

  1. Retrieve codes and freeze frame
  2. Inspect wiring for open or short to power
  3. Check sensor ground and connector
  4. Test sensor signal voltage against spec
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Other Powertrain codes on this vehicle

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