AutoCodes – Generic – P1D8A

P1D8A Code - Park Pawl Solenoid Circuit Low

Quick Answer

The Transmission Control Module (TCM) monitors the Park Pawl Solenoid. Common causes include Faulty Park Pawl Solenoid, Park Pawl Solenoid harness is open or shorted, Park Pawl Solenoid 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: P1D8A indicates Park Pawl Solenoid Circuit Low.
Common causes: Common causes include Faulty Park Pawl Solenoid, Park Pawl Solenoid harness is open or shorted, Park Pawl Solenoid 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 1,871

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 18, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1D8A Description

The Transmission Control Module (TCM) monitors the Park Pawl Solenoid. The TCM sets the OBDII code when the Park Pawl Solenoid is not to factory specifications.

OBDII Code P1D8A - Park Pawl Solenoid Circuit Low - AutoCodes.com — P1D8A Code - Park Pawl Solenoid Circuit Low

What does this mean?

What are the Possible Causes of the DTC P1D8A?

Faulty Park Pawl Solenoid
Park Pawl Solenoid harness is open or shorted
Park Pawl Solenoid circuit poor electrical connection
Faulty Transmission Control Module (TCM)

How to Fix the DTC P1D8A?

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 P1D8A 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 P1D8A code?

Need more information on how to fix the P1D8A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1D8A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1D8A Acura — Generator Motor Control Module Gate Line Open
P1D8A Chrysler — Park Pawl Solenoid Circuit Low
P1D8A Dodge — Park Pawl Solenoid Circuit Low
P1D8A Fiat — Park Pawl Solenoid Circuit Low
P1D8A Honda — Generator Motor Control Module Gate Line Open
P1D8A Jeep — Park Pawl Solenoid Circuit Low

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 P1D8A Code

1. What does the OBDII code P1D8A mean?

The P1D8A code indicates an issue with the Park Pawl Solenoid Circuit, specifically a low voltage or electrical fault detected by the transmission control module (TCM).

2. What are the common symptoms of the P1D8A code?

Symptoms may include difficulty shifting into or out of park, the inability to engage the parking mechanism, a check engine light, or transmission warning messages.

3. What causes the P1D8A code to be triggered?

Possible causes include a faulty park pawl solenoid, damaged wiring or connectors in the circuit, a blown fuse, or an issue with the transmission control module (TCM).

4. How do I diagnose the P1D8A code?

Diagnosis typically involves using a scan tool to confirm the code, inspecting the park pawl solenoid and its wiring for damage, and testing the solenoidâ€™s resistance and voltage.

5. Can I drive with the P1D8A code active?

It is not recommended to drive with this code active, as the transmission may not properly engage the park mechanism, posing safety risks.

6. How is the P1D8A code repaired?

Repairs may include replacing the park pawl solenoid, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the TCM if necessary.

7. What tools are needed to fix the P1D8A code?

Tools may include a diagnostic scan tool, a multimeter to test electrical components, and basic hand tools for accessing and replacing parts.

8. How much does it cost to fix the P1D8A code?

Repair costs vary but typically range from $150 to $500, depending on whether the issue is with the solenoid, wiring, or TCM.

9. Is the P1D8A code a common issue?

The P1D8A code is not very common but can occur in vehicles with automatic transmissions featuring electronic park mechanisms.

10. Can a software update fix the P1D8A code?

In some cases, a software update for the transmission control module may resolve the issue if the problem is related to programming rather than hardware.