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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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Repairs0Labor1050Torque1637Fluid17DTC3480Battery2Maintenance0Recalls5
P0828moderate severityPowertrain

Up and Down Shift Switch Circuit High

on 2003 Toyota Tacoma 2.7L I4 · RWD

What this code means

The signal from the manual up/down shift switch circuit is reading higher than expected. This often indicates an open circuit or short to voltage.

Symptoms

  • Manual shift mode inoperative
  • Transmission warning light on
  • Erratic shift behavior

Common causes

  • Open circuit in switch wiring
  • Short to voltage in circuit
  • Faulty up/down shift switch
  • Faulty transmission control module

Diagnostic steps

  1. Read stored codes and freeze frame data
  2. Measure switch circuit signal voltage
  3. Inspect wiring for opens or shorts to power
  4. Replace switch or repair wiring as needed
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Other Powertrain codes on this vehicle

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