OBD Guide

P1D5F

Power Supply 2 Circuit Fault

P1D5F is an OBD-II diagnostic trouble code meaning: Power Supply 2 Circuit Fault. Common causes: open or short circuit in the power supply, wiring harness damage. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Check Engine light comes on
  • Unstable engine operation
  • Reduced engine power
  • Problems starting the engine
  • Disabling some vehicle systems

Causes

  • Open or short circuit in the power supply
  • Wiring harness damage
  • Faulty relay or fuse
  • Problems with the engine control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check the condition of fuses and relays
  2. Inspect the wiring harness for damage
  3. Check the integrity of the power circuit
  4. Clean the connector contacts
  5. Test the engine control unit

Related codes

FAQ

What does the P1D5F code mean?

P1D5F is an OBD-II diagnostic trouble code that indicates: Power Supply 2 Circuit Fault

What causes a P1D5F error code?

The most common causes of P1D5F include: Open or short circuit in the power supply; Wiring harness damage; Faulty relay or fuse; Problems with the engine control unit.

How do I fix a P1D5F diagnostic trouble code?

To fix P1D5F: Check the condition of fuses and relays. Inspect the wiring harness for damage. Check the integrity of the power circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1D5F?

Limited driving only, diagnose soon

How much does it cost to fix P1D5F?

The estimated repair cost for P1D5F is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat