OBD Guide
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P1D5A

Sensor Power Supply 2 Circuit Fault

P1D5A is an OBD-II diagnostic trouble code meaning: Sensor Power Supply 2 Circuit Fault. Common causes: open or short circuit in the power supply, poor contact in the sensor connector. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Unstable engine operation
  • Check Engine light comes on
  • Reduced engine power
  • Increased fuel consumption

Causes

  • Open or short circuit in the power supply
  • Poor contact in the sensor connector
  • Sensor malfunction
  • Problems with the ECU

How to Fix

  1. Check the integrity of the sensor power supply circuit
  2. Inspect and clean the contacts in the sensor connector
  3. Check the voltage in the power circuit
  4. If necessary, replace the sensor or repair the circuit

Related codes

P1D59P1D5B

FAQ

What does the P1D5A code mean?

P1D5A is an OBD-II diagnostic trouble code that indicates: Sensor Power Supply 2 Circuit Fault

What causes a P1D5A error code?

The most common causes of P1D5A include: Open or short circuit in the power supply; Poor contact in the sensor connector; Sensor malfunction; Problems with the ECU.

How do I fix a P1D5A diagnostic trouble code?

To fix P1D5A: Check the integrity of the sensor power supply circuit. Inspect and clean the contacts in the sensor connector. Check the voltage in the power circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D5A?

Limited driving only, diagnose soon

How much does it cost to fix P1D5A?

The estimated repair cost for P1D5A is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat