AutoCodes – Generic – P1D5A

P1D5A Code - Sensor Power Supply 2 Circuit Fault

Quick Answer

This diagnostic checks for the electrical faults of the sensor power supplies, sensor module or the connecting wiring. Common causes include 5 Volt Supply 2 Circuit Open or High Resistance, 5 Volt Supply 2 Circuit Shorted to ground, 5 Volt Supply 2 Circuit Shorted to voltage. 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: P1D5A indicates Sensor Power Supply 2 Circuit Fault.
Common causes: Common causes include 5 Volt Supply 2 Circuit Open or High Resistance, 5 Volt Supply 2 Circuit Shorted to ground, 5 Volt Supply 2 Circuit Shorted to voltage.
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 1,599

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 P1D5A Description

This diagnostic checks for the electrical faults of the sensor power supplies, sensor module or the connecting wiring. These electrical faults may include short to battery, short to ground and open circuit. There are three different sensor power supplies, named VS1, VS2 and VS3 which are provided by an integrated circuit internal to the Transmission Control Module (TCM). The 1st-3rd actuator position sensor, the 5th-RV actuator position sensor and the odd clutch position sensor are supplied by VS1. The even clutch pressure sensor, the 2nd-4th actuator position sensor, the 6th actuator position sensor and the gate select position sensor are supplied by VS2. The hydraulic pressure sensor, the odd and even clutch speed sensors and the park position sensor are supplied by VS3. A self diagnostic is performed by the integrated circuit on each power supply. The diagnostic continuously checks the result of the internal integrated circuit test by reading an internal register via SPI communication interface. If it indicates an electrical fault on at least one of the three supplies, then the diagnostic will set a fault in the TCM.

OBDII Code P1D5A - Sensor Power Supply 2 Circuit Fault - AutoCodes.com — P1D5A Code - Sensor Power Supply 2 Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P1D5A?

5 Volt Supply 2 Circuit Open or High Resistance
5 Volt Supply 2 Circuit Shorted to ground
5 Volt Supply 2 Circuit Shorted to voltage
Faulty Transmission Control Module (TCM)

How to Fix the DTC P1D5A?

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 P1D5A 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 P1D5A code?

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Need Help with the Code?

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Information for Specific Makes

P1D5A Chrysler — Sensor Power Supply 2 Circuit Fault
P1D5A Dodge — Sensor Power Supply 2 Circuit Fault
P1D5A Fiat — Sensor Power Supply 2 Circuit Fault
P1D5A Jeep — Sensor Power Supply 2 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 P1D5A Code

1. What are common symptoms of OBDII code P1D5A (Sensor Power Supply 2 Circuit Fault)?

The common symptoms of code P1D5A may include rough idling, engine misfires, poor fuel efficiency, and in some cases, the vehicle may go into limp mode.

2. What can cause the Sensor Power Supply 2 Circuit Fault (P1D5A) code to trigger?

The code P1D5A is typically triggered by issues such as a faulty sensor, damaged wiring or connectors, a failing power supply module, or a blown fuse related to the sensor circuit.

3. How serious is the Sensor Power Supply 2 Circuit Fault (P1D5A) code?

While the severity can vary, it is important not to ignore code P1D5A as it can affect the performance and efficiency of the vehicle. It is recommended to address the issue promptly to prevent further damage.

4. Can I still drive my vehicle with the Sensor Power Supply 2 Circuit Fault (P1D5A) code?

It is generally not recommended to continue driving with the P1D5A code present, especially if you are experiencing noticeable performance issues. Continuing to drive may cause further damage to the vehicle.

5. How can I diagnose and repair the Sensor Power Supply 2 Circuit Fault (P1D5A) code?

Diagnosing the P1D5A code involves inspecting the sensor, checking the wiring and connectors for damage, testing the power supply module, and ensuring proper voltage is reaching the sensor. Repair typically involves replacing the faulty sensor, repairing damaged wiring, or addressing power supply issues.

6. Can a DIYer fix the Sensor Power Supply 2 Circuit Fault (P1D5A) issue?

While some DIYers with automotive repair experience may be able to diagnose and fix the issue themselves, it is recommended to consult a professional mechanic, especially if you are not familiar with sensor circuits and power supply systems.

7. How much does it cost to repair the Sensor Power Supply 2 Circuit Fault (P1D5A) issue?

The cost of repairing the P1D5A code can vary depending on the underlying cause of the fault, the extent of the damage, and the labor rates in your area. It is advisable to get a few quotes from reputable repair shops.

8. Can a low battery voltage trigger the Sensor Power Supply 2 Circuit Fault (P1D5A) code?

Yes, a low battery voltage or a weak alternator can sometimes cause voltage irregularities in the sensor circuit, leading to the P1D5A fault code. It is recommended to ensure the battery and charging system are in good condition.

9. Will resetting the OBDII code P1D5A make it go away permanently?

Simply resetting the code may temporarily clear the fault code, but if the underlying issue causing the P1D5A code is not addressed and repaired, the code is likely to return.

10. Are there any recalls or technical service bulletins related to the Sensor Power Supply 2 Circuit Fault (P1D5A) code?

It is advisable to check with the vehicle manufacturer or a trusted mechanic for any recalls or technical service bulletins related to the P1D5A code to see if there are known issues or remedies provided by the manufacturer.