What are the symptoms of P2749?

Harsh or incorrect shifts, Check Engine light on, Limp Mode activated, Erratic speedometer readings

What causes code P2749?

Short to voltage (Vref) in the sensor circuit, Faulty input/turbine speed sensor B, Faulty or loose wiring, Problem with Powertrain Control Module (PCM) or Transmission Control Module (TCM)

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Fault Code P2749

Code meaning, symptoms, possible causes, part number, and estimated cost.

P2749

Input/Turbine Speed Sensor B Circuit High

Severity: Medium

This code indicates a high voltage or a higher-than-expected reading in the input/turbine speed sensor B circuit. There might be an electrical issue in the sensor circuit.

Part Details

Part Name

Input/Turbine Speed Sensor B

Reference P/N (OEM)

N/A

General part number for this fault code — not necessarily for your specific vehicle

Estimated Cost

₪250 - ₪900

Engine Location

Transmission

Symptoms

Harsh or incorrect shifts
Check Engine light on
Limp Mode activated
Erratic speedometer readings

Possible Causes

1Short to voltage (Vref) in the sensor circuit
2Faulty input/turbine speed sensor B
3Faulty or loose wiring
4Problem with Powertrain Control Module (PCM) or Transmission Control Module (TCM)