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P1D5D Dodge 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 Dodge 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 893
How popular is this code, among other codes? Low
What is this?
Table of contents Created and updated by William Orellana on Apr 14, 2020
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Code P1D5D Dodge 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 Dodge - Sensor Ground Reference 2 Circuit - AutoCodes.com
P1D5D Dodge Code - Sensor Ground Reference 2 Circuit
What does this mean?

What are the Possible Causes of the DTC P1D5D Dodge?

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

How to Fix the DTC P1D5D Dodge?

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 Dodge 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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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 Dodge Code

1. What does the OBDII code P1D5D mean on a Dodge?

P1D5D indicates an issue with the Sensor Ground Reference 2 Circuit, which provides a stable ground for certain sensors in the vehicle.

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

Symptoms can include a check engine light, erratic sensor readings, reduced engine performance, or difficulty starting the vehicle.

3. What causes the P1D5D code to appear?

Common causes include a damaged or corroded ground wire, faulty sensor, loose electrical connections, or an issue with the Engine Control Module (ECM).

4. Can I drive my Dodge with a P1D5D code?

While the vehicle may still be drivable, it’s not recommended as it can lead to further damage or erratic performance. Addressing the issue promptly is best.

5. How can I diagnose the P1D5D code on my Dodge?

Start by inspecting the wiring and connectors for damage or corrosion. Use a multimeter to test the ground circuit’s continuity and check for proper voltage.

6. What sensors could be affected by the P1D5D code?

Sensors relying on the Sensor Ground Reference 2 Circuit could include MAP, throttle position, or oxygen sensors, depending on the vehicle model.

7. How do I fix the P1D5D code on a Dodge?

Repairs may involve repairing or replacing damaged wires, cleaning corroded connections, replacing a faulty sensor, or, in rare cases, reprogramming or replacing the ECM.

8. Is the P1D5D code specific to Dodge vehicles?

While P1D5D is more commonly associated with Dodge and other FCA vehicles, the specific meaning may vary by manufacturer.

9. Can a dead battery cause the P1D5D code?

A dead or weak battery can potentially cause electrical issues, but it’s more likely that the code is due to a ground circuit or sensor problem.

10. Will clearing the P1D5D code with a scan tool fix the problem?

Clearing the code may temporarily turn off the check engine light, but if the underlying issue isn’t resolved, the code will return.

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