OBD Guide

P1F5D

14 Volt Power Module L-Terminal Circuit Low Voltage

P1F5D is an OBD-II diagnostic trouble code meaning: 14 Volt Power Module L-Terminal Circuit Low Voltage. Common causes: 14v power module faulty, damaged wiring or poor contacts. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

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

Causes

  • 14V power module faulty
  • Damaged wiring or poor contacts
  • Battery problems
  • Generator malfunction

How to Fix

  1. Check the voltage at the battery terminals
  2. Inspect the wiring and contacts of the power module
  3. Test the generator
  4. Replace 14V power module if necessary

Related codes

FAQ

What does the P1F5D code mean?

P1F5D is an OBD-II diagnostic trouble code that indicates: 14 Volt Power Module L-Terminal Circuit Low Voltage

What causes a P1F5D error code?

The most common causes of P1F5D include: 14V power module faulty; Damaged wiring or poor contacts; Battery problems; Generator malfunction.

How do I fix a P1F5D diagnostic trouble code?

To fix P1F5D: Check the voltage at the battery terminals. Inspect the wiring and contacts of the power module. Test the generator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1F5D?

Yes, but get it checked soon

How much does it cost to fix P1F5D?

The estimated repair cost for P1F5D is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat