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2004 TOYOTA SIENNA
3.3L V6•AWD•AUTOMATIC•gas•3MZ-FE
10 active safety recalls on this vehicle — view recalls
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Repairs0Labor482Torque3352Fluid10DTC1753Battery1Maintenance0Recalls10
P0801moderate severityPowertrain

Reverse Inhibit Control Circuit

on 2004 Toyota Sienna 3.3L V6 · AWD

What this code means

A fault has been detected in the reverse inhibit control circuit, which prevents accidental engagement of reverse gear. This can affect the ability to select or lock out reverse.

Symptoms

  • Difficulty engaging reverse
  • Check engine light on
  • Reverse lockout not functioning

Common causes

  • Faulty reverse inhibit solenoid
  • Open or short in control circuit wiring
  • Damaged connector at transmission
  • Faulty transmission control module

Diagnostic steps

  1. Scan and record freeze frame data
  2. Inspect reverse inhibit circuit wiring and connectors
  3. Test solenoid resistance against spec
  4. Check TCM output command and power supply
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