AutoCodes – Dodge – P1D5C Dodge

P1D5C Dodge Code - Sensor Ground Reference 1 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: P1D5C Dodge indicates Sensor Ground Reference 1 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 815

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 P1D5C 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 P1D5C Dodge - Sensor Ground Reference 1 Circuit - AutoCodes.com — P1D5C Dodge Code - Sensor Ground Reference 1 Circuit

What does this mean?

What are the Possible Causes of the DTC P1D5C Dodge?

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

How to Fix the DTC P1D5C 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 P1D5C 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 P1D5C Dodge Code

1. What are the common symptoms of OBDII code P1D5C in a Dodge related to Sensor Ground Reference 1 Circuit?

The common symptoms include rough idling, misfires, engine stalling, poor fuel efficiency, and the illumination of the Check Engine light.

2. What causes the OBDII code P1D5C in a Dodge related to Sensor Ground Reference 1 Circuit?

The code is typically triggered by issues such as damaged wiring, poor electrical connections, sensor malfunctions, or a faulty Engine Control Module (ECM).

3. How can I diagnose the Sensor Ground Reference 1 Circuit issue in my Dodge when experiencing code P1D5C?

Start by inspecting the wiring and connectors for any damage or corrosion. Check the sensor's operation and resistance values. A multimeter can be useful for measuring voltages and verifying continuity.

4. Can a DIY enthusiast repair the Sensor Ground Reference 1 Circuit problem causing OBDII code P1D5C in a Dodge?

Yes, depending on the exact cause, DIY repairs may be possible. It could involve repairing or replacing damaged wiring, cleaning connectors, replacing sensors, or even resetting the ECM.

5. Is it safe to continue driving my Dodge with the OBDII code P1D5C related to Sensor Ground Reference 1 Circuit active?

While the vehicle may still be operable, it is recommended to address the issue promptly to prevent potential engine performance problems and further damage. Continued driving may worsen fuel efficiency and cause drivability issues.

6. How do I reset the Check Engine light after fixing the Sensor Ground Reference 1 Circuit issue in my Dodge?

Once the underlying problem is resolved, the Check Engine light can be reset using an OBDII scanner. Alternatively, disconnecting the car battery for a few minutes can also clear the fault codes.

7. Can extreme weather conditions affect the Sensor Ground Reference 1 Circuit in a Dodge and trigger code P1D5C?

Yes, extreme temperatures and moisture can cause electrical components to malfunction, leading to issues with the Sensor Ground Reference circuit and triggering the OBDII code.

8. Are there any preventive measures to avoid encountering the Sensor Ground Reference 1 Circuit problem in a Dodge?

Regular vehicle maintenance, including checking wiring integrity and keeping electrical connections clean, can help prevent issues with the Sensor Ground Reference 1 Circuit.

9. How long does it typically take to repair the Sensor Ground Reference 1 Circuit issue causing OBDII code P1D5C in a Dodge?

The repair duration can vary depending on the exact cause and the extent of the damage. Simple fixes like cleaning connectors may take a short time, while more complex issues could require hours or even days to resolve.

10. Can a malfunctioning Sensor Ground Reference 1 Circuit impact other systems in the Dodge besides triggering OBDII code P1D5C?

Yes, a faulty Sensor Ground Reference circuit can affect the operation of various sensors and systems in the vehicle, potentially leading to performance issues, drivability problems, and even safety concerns.