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1999 TOYOTA TACOMA
2.7L I4•RWD•AUTOMATIC•gas
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor1038Torque1596Fluid17DTC3336Battery2Maintenance0Recalls5
P0906high severityPowertrain

Gate Select Actuator Circuit High

on 1999 Toyota Tacoma 2.7L I4 · RWD

What this code means

The gate select actuator circuit voltage is higher than expected. This points to an open circuit or short to voltage affecting shift control.

Symptoms

  • Improper gear selection
  • Warning light on
  • Rough shifting

Common causes

  • Short to voltage in wiring
  • Open actuator circuit
  • Faulty gate select actuator
  • Faulty transmission control module

Diagnostic steps

  1. Retrieve diagnostic codes
  2. Inspect wiring for shorts to power
  3. Measure circuit voltage with scan tool
  4. Replace actuator if faulty
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