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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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Repairs0Labor1042Torque1610Fluid17DTC3334Battery2Maintenance0Recalls5
P0976moderate severityPowertrain

Shift Solenoid B Control Circuit Low

on 1999 Toyota Tacoma 2.7L I4 · RWD

What this code means

The PCM sees low voltage on the shift solenoid B control circuit. This often means a short to ground or an open in the wiring.

Symptoms

  • Erratic or no shifting
  • Transmission limp mode
  • Check engine light on

Common causes

  • Short to ground in wiring
  • Faulty shift solenoid B
  • Poor connector contact
  • Internal PCM circuit fault

Diagnostic steps

  1. Retrieve trouble codes and data
  2. Inspect harness for shorts to ground
  3. Check solenoid resistance
  4. Verify PCM output signal
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