What are the symptoms of P2751?

Check Engine light on, Harsh or delayed gear shifts, Transmission entering limp mode, Increased fuel consumption

What causes code P2751?

Short to voltage (Vref) in the sensor circuit, Faulty transmission fluid temperature sensor B, Faulty or loose wiring, Problem with Powertrain Control Module (PCM) or Transmission Control Module (TCM)

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Fault Code P2751

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

P2751

Automatic Transmission Fluid Temperature Sensor B Circuit High

Severity: Medium

This code indicates a higher-than-expected voltage reading from the automatic transmission fluid temperature sensor B. This can affect how the transmission determines shift points.

Part Details

Part Name

Transmission Fluid Temperature Sensor B

Reference P/N (OEM)

N/A

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

Estimated Cost

₪200 - ₪700

Engine Location

Transmission

Symptoms

Check Engine light on
Harsh or delayed gear shifts
Transmission entering limp mode
Increased fuel consumption

Possible Causes

1Short to voltage (Vref) in the sensor circuit
2Faulty transmission fluid temperature sensor B
3Faulty or loose wiring
4Problem with Powertrain Control Module (PCM) or Transmission Control Module (TCM)