AutoCodes – Generic – P1D61

P1D61 Code - Internal Controller Power Supply Failure

Quick Answer

This diagnostic detects if the power supply to valve actuators is shorted to ground or to battery. 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: P1D61 indicates Internal Controller Power Supply Failure.
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 1,687

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 P1D61 Description

This diagnostic detects if the power supply to valve actuators is shorted to ground or to battery. The diagnostic also compares this power supply to the Safety Micro Processor (SMP) power supply. When the valve actuators power supply has an electric fault or its voltage deviates from the SMP power supply, the diagnostic will be considered failing.

OBDII Code P1D61 - Internal Controller Power Supply Failure - AutoCodes.com — P1D61 Code - Internal Controller Power Supply Failure

What does this mean?

What are the Possible Causes of the DTC P1D61?

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 P1D61?

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 P1D61 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 P1D61 code?

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Need Help with the Code?

Get the P1D61 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1D61 Acura — Leak Sensor Drive Inhibition Signal Stuck Off
P1D61 Chrysler — Internal Controller Power Supply Failure
P1D61 Dodge — Internal Controller Power Supply Failure
P1D61 Fiat — Internal Controller Power Supply Failure
P1D61 Honda — Leak Sensor Drive Inhibition Signal Stuck Off
P1D61 Jeep — Internal Controller Power Supply Failure

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 P1D61 Code

1. What does the OBDII code P1D61 mean?

P1D61 indicates an "Internal Controller Power Supply Failure," which means the power supply inside the vehicle's control module is malfunctioning.

2. What are the common symptoms of the P1D61 code?

Symptoms may include the check engine light illuminating, poor engine performance, difficulty starting the vehicle, or intermittent electrical issues.

3. What causes the P1D61 code to appear?

This code is typically caused by an internal fault in the power supply circuitry of the control module, a short circuit, or a voltage irregularity in the electrical system.

4. Can I still drive my vehicle with the P1D61 code?

It is not recommended to drive with this code active, as it can lead to further electrical issues or cause the vehicle to stall unexpectedly.

5. How is the P1D61 code diagnosed?

A technician will use a scan tool to confirm the code, inspect the wiring and connectors, and test the control module's internal power supply for faults.

6. Is replacing the control module the only fix for P1D61?

Not always. The issue could be related to external wiring or connections. However, if the control module is internally damaged, replacing it may be necessary.

7. Can a low battery cause the P1D61 code?

A low or failing battery can sometimes contribute to voltage irregularities, but the code typically points to an internal fault in the control module.

8. How much does it cost to fix the P1D61 code?

Repair costs can vary widely depending on whether the issue is with wiring, connectors, or the control module itself. Replacing a control module may cost $500â€“$1,500 or more.

9. Can I reset the P1D61 code myself?

You can clear the code with an OBDII scanner, but if the underlying issue is not resolved, the code will likely return.

10. What should I check first if I get a P1D61 code?

Start by inspecting the battery, wiring, and connectors for damage or corrosion. If no external issues are found, the control module may need testing for internal faults.