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P1F5D Code - 14 Volt Power Module L-Terminal Circuit Low Voltage

- Code Popularity: 718 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P1F5D?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Engine Control Module (ECM)
  • Engine Control Module (ECM) harness is open or shorted
  • Engine Control Module (ECM) circuit poor electrical connection
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How to Fix the DTC P1F5D?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1F5D code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1F5D Description

The Engine Control Module (ECM) uses two circuits to control and monitor the state of the 14V power module, often referred to as the accessory DC power control module. The control circuit functions much like the L Terminal circuit on a generator equipped vehicle. A high side driver in the ECM applies a duty cycled voltage to the 14V power module. The duty cycle controls the 14V power module output. The ECM monitors the state of the 14V power module control circuit. The ECM will detect faults on the 14V power module control circuit when the vehicle is ON.

OBDII Code P1F5D - 14 Volt Power Module L-Terminal Circuit Low Voltage - AutoCodes.com
P1F5D Code - 14 Volt Power Module L-Terminal Circuit Low Voltage

Need More Information on the Code?

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Information for Specific Makes

  • P1F5D Buick 14 Volt Power Module L-Terminal Circuit Low Voltage
  • P1F5D Cadillac 14 Volt Power Module L-Terminal Circuit Low Voltage
  • P1F5D Chevrolet 14 Volt Power Module L-Terminal Circuit Low Voltage
  • P1F5D GMC 14 Volt Power Module L-Terminal Circuit Low Voltage
  • P1F5D Saturn 14 Volt Power Module L-Terminal Circuit Low Voltage

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Code P1F5D comments

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