AutoCodes – Generic – P1D5D

P1D5D Code - Sensor Ground Reference 2 Circuit

Quick Answer

This diagnostic checks for a loss of connection of the sensor ground reference. Common causes include Sensor Ground Circuit Open or High Resistance, Sensor Ground Circuit Shorted to voltage, Faulty Transmission Control Module (TCM). 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: P1D5D indicates Sensor Ground Reference 2 Circuit.
Common causes: Common causes include Sensor Ground Circuit Open or High Resistance, Sensor Ground Circuit Shorted to voltage, Faulty Transmission Control Module (TCM).
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 837

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 P1D5D Description

This diagnostic checks for a loss of connection of the sensor ground reference. The common ground reference is provided to all sensors by the Transmission Control Module (TCM) via three different connector pins, named GNDSENS1, GNDSENS2 and GNDSENS3. In order to ensure that the system continues to work properly even if one of the ground pin is disconnected, the most critical sensors have their ground reference connected to both GNDSENS1 and GNDSENS2, so that only a loss of connection of both pins will cause a loss of ability to shift gears. These sensors are the gate select position sensor, the odd and even clutch speed sensors, all the gear actuator position sensors and the even clutch pressure sensor. The odd clutch position sensor, the hydraulic pressure sensor and the park position sensor have instead their ground reference connected to GNDSENS3. When a loss of connection of both GNDSENS1 and GNDSENS2 or only GNDSENS3 is detected, the diagnostic will set a fault in the TCM.

OBDII Code P1D5D - Sensor Ground Reference 2 Circuit - AutoCodes.com — P1D5D Code - Sensor Ground Reference 2 Circuit

What does this mean?

What are the Possible Causes of the DTC P1D5D?

Sensor Ground Circuit Open or High Resistance
Sensor Ground Circuit Shorted to voltage
Faulty Transmission Control Module (TCM)

How to Fix the DTC P1D5D?

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 P1D5D 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.

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Information for Specific Makes

P1D5D Chrysler — Sensor Ground Reference 2 Circuit
P1D5D Dodge — Sensor Ground Reference 2 Circuit
P1D5D Fiat — Sensor Ground Reference 2 Circuit
P1D5D Jeep — Sensor Ground Reference 2 Circuit

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 P1D5D Code

1. What is OBDII code P1D5D related to Sensor Ground Reference 2 Circuit?

This code indicates an issue with the sensor ground reference 2 circuit in the vehicle's system.

2. What are the common symptoms of OBDII code P1D5D?

Common symptoms include engine misfires, rough idling, poor acceleration, and potentially a check engine light.

3. What are the possible causes of OBDII code P1D5D?

Possible causes include damaged wiring or connectors in the sensor ground reference 2 circuit, a faulty sensor, or a problem with the vehicle's ECM.

4. How can I diagnose the issue related to OBDII code P1D5D?

Diagnosing the issue involves checking the wiring and connectors in the sensor ground reference 2 circuit, testing the sensor for proper function, and scanning the ECM for any stored fault codes.

5. Is it safe to continue driving with OBDII code P1D5D present?

It is not recommended to continue driving with this code present, as it can lead to further damage to the vehicle and may result in poor performance.

6. How can I repair OBDII code P1D5D?

Repairing this code typically involves fixing any damaged wiring or connectors, replacing the faulty sensor, or addressing any issues with the ECM.

7. Can I reset OBDII code P1D5D on my own?

You can reset the code using an OBDII scanner, but it is important to diagnose and address the underlying issue to prevent the code from reoccurring.

8. Are there any DIY tips for fixing OBDII code P1D5D?

If you have experience with automotive wiring and sensors, you may be able to inspect and potentially repair the sensor ground reference 2 circuit yourself. Otherwise, it is recommended to seek professional help.

9. How much does it cost to repair OBDII code P1D5D?

The cost of repairing this code can vary depending on the specific issue causing it, the extent of the damage, and whether any parts need to be replaced. It is best to consult a mechanic for an accurate estimate.

10. Is OBDII code P1D5D a common issue in vehicles?

While not as common as some other OBDII codes, issues related to the sensor ground reference 2 circuit can occur in vehicles and should be addressed promptly to ensure optimal performance.