AutoCodes – Generic – P1D5E

P1D5E Code - Power Supply 1 Circuit Fault

Quick Answer

This diagnostic checks for the electrical faults of the power supply to the Transmission Control Module (TCM). Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1D5E indicates Power Supply 1 Circuit Fault.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,431

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1D5E Description

This diagnostic checks for the electrical faults of the power supply to the Transmission Control Module (TCM). The supply is provided to TCM via three different input pins named PWRSPLYVS1, PWRSPLYVS2 and PWRSPLYVS3. The diagnostic detects if each power supply input is shorted to ground or has an open circuit fault by continuously measuring its voltage value. When each of the voltage values is less than its threshold, then that diagnostic will set a fault in the TCM.

OBDII Code P1D5E - Power Supply 1 Circuit Fault - AutoCodes.com — P1D5E Code - Power Supply 1 Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P1D5E?

Faulty Transmission Control Module (TCM)
Transmission Control Module (TCM) harness is open or shorted
Transmission Control Module (TCM) circuit poor electrical connection

How to Fix the DTC P1D5E?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1D5E code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1D5E code?

Need more information on how to fix the P1D5E code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P1D5E Chrysler — Power Supply 1 Circuit Fault
P1D5E Dodge — Power Supply 1 Circuit Fault
P1D5E Fiat — Power Supply 1 Circuit Fault
P1D5E Jeep — Power Supply 1 Circuit Fault

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1D5E Code

1. What are the common symptoms of OBDII code P1D5E (Power Supply 1 Circuit Fault)?

- Common symptoms include engine stalling, rough idling, reduced engine power, and in some cases, the vehicle may not start.

2. What are the possible causes of OBDII code P1D5E?

- The code P1D5E can be triggered by issues such as a faulty power supply circuit, damaged wiring, a blown fuse, or a malfunctioning powertrain control module (PCM).

3. How can I diagnose the OBDII code P1D5E?

- Diagnosing the code P1D5E typically involves using an OBDII scanner to retrieve the fault code, checking the power supply circuit for continuity, inspecting wiring for damage, and testing the PCM for proper operation.

4. Can a DIYer repair OBDII code P1D5E at home?

- Depending on the exact cause of the code, a DIYer may be able to repair it at home by replacing a blown fuse, repairing damaged wiring, or replacing a faulty component. However, more complex issues may require professional diagnosis and repair.

5. How serious is OBDII code P1D5E?

- OBDII code P1D5E should be addressed promptly, as it can lead to drivability issues and potential engine damage if left unresolved. It is recommended to diagnose and repair the issue as soon as possible.

6. Can a faulty battery cause OBDII code P1D5E to appear?

- Yes, a faulty battery or poor battery connections can potentially cause the power supply 1 circuit fault indicated by code P1D5E. It is advisable to check the battery and connections as part of the diagnostic process.

7. Will driving with OBDII code P1D5E damage my vehicle?

- Continuing to drive with OBDII code P1D5E may result in poor engine performance and potential damage over time. It is best to address the underlying issue promptly to prevent further complications.

8. How much does it typically cost to repair OBDII code P1D5E?

- The cost of repairing OBDII code P1D5E can vary depending on the cause of the fault, the extent of the repairs needed, and whether professional help is required. Costs may range from a simple fuse replacement to more extensive wiring repairs.

9. Can resetting the OBDII code P1D5E resolve the issue temporarily?

- Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the fault for a lasting solution.

10. Are there any preventive measures to avoid OBDII code P1D5E in the future?

- Regular maintenance checks, ensuring proper battery health, and addressing electrical issues promptly can help prevent the occurrence of OBDII code P1D5E related to power supply circuit faults.