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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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Repairs0Labor1040Torque1598Fluid17DTC3336Battery2Maintenance0Recalls5
P0909high severityPowertrain

Gate Select Actuator Circuit High

on 1999 Toyota Tacoma 2.7L I4 · RWD

What this code means

The gate select actuator circuit is reading a high voltage condition. This suggests an open circuit or short to power affecting shift operation.

Symptoms

  • Failed shifts
  • Fault light illuminated
  • Erratic gear behavior

Common causes

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

Diagnostic steps

  1. Retrieve stored codes
  2. Inspect for open or shorted wiring
  3. Measure actuator supply voltage
  4. Test and replace actuator if needed
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Other Powertrain codes on this vehicle

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