OBD Guide
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P1DFD

Power System Indicator Lighting Request From PCM

P1DFD is an OBD-II diagnostic trouble code meaning: Power System Indicator Lighting Request From PCM. Common causes: generator malfunction, battery problems. Estimated repair cost: $9–133.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$9–133 (est.)

Symptoms

  • The power system indicator on the dashboard is on
  • There may be problems charging the battery
  • Possible difficulty starting the engine
  • Sometimes accompanied by a flashing indicator

Causes

  • Generator malfunction
  • Battery problems
  • Open or damaged indicator connection circuit
  • Control module (PCM) malfunction
  • Problems with wiring or contacts

How to Fix

  1. Check battery condition
  2. Diagnose generator operation
  3. Check the integrity of the indicator connection circuit
  4. Scan the control module for other errors
  5. Check connections and wiring condition

Related codes

P0562P0563P0620

FAQ

What does the P1DFD code mean?

P1DFD is an OBD-II diagnostic trouble code that indicates: Power System Indicator Lighting Request From PCM

What causes a P1DFD error code?

The most common causes of P1DFD include: Generator malfunction; Battery problems; Open or damaged indicator connection circuit; Control module (PCM) malfunction.

How do I fix a P1DFD diagnostic trouble code?

To fix P1DFD: Check battery condition. Diagnose generator operation. Check the integrity of the indicator connection circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1DFD?

Limited driving only, diagnose soon

How much does it cost to fix P1DFD?

The estimated repair cost for P1DFD is $9–133. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat