OBD Guide
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P1E30

Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage

P1E30 is an OBD-II diagnostic trouble code meaning: Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage. Common causes: pump phase sensor malfunction, open or short circuit in the circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Transmission malfunction
  • Check engine light comes on
  • Reduced shift efficiency
  • Increased pump noise

Causes

  • Pump phase sensor malfunction
  • Open or short circuit in the circuit
  • Wiring Harness Problems
  • Transmission control unit malfunction

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check the condition of the wiring harness
  3. Replace the pump phase sensor
  4. Check and, if necessary, replace the transmission control unit

Related codes

P1E31P1E32

FAQ

What does the P1E30 code mean?

P1E30 is an OBD-II diagnostic trouble code that indicates: Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage

What causes a P1E30 error code?

The most common causes of P1E30 include: Pump phase sensor malfunction; Open or short circuit in the circuit; Wiring Harness Problems; Transmission control unit malfunction.

How do I fix a P1E30 diagnostic trouble code?

To fix P1E30: Check the integrity of the sensor circuit. Check the condition of the wiring harness. Replace the pump phase sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1E30?

Yes, but get it checked soon

How much does it cost to fix P1E30?

The estimated repair cost for P1E30 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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