AutoCodes – Generic – P1D97

P1D97 Code - Incorrect Gear Ratio Clutch 'A' Or 'D' Defective

Quick Answer

The Transmission Control Module (TCM) monitors for conditions which lead to an unexpected transmission gear ratio (e.g. Common causes include Faulty Transmission Internal Components. 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: P1D97 indicates Incorrect Gear Ratio Clutch 'A' Or 'D' Defective.
Common causes: Common causes include Faulty Transmission Internal Components.
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 3,382

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 19, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1D97 Description

The Transmission Control Module (TCM) monitors for conditions which lead to an unexpected transmission gear ratio (e.g. slipping clutches, hydraulic or mechanical defects, etc.). The TCM compares the actual gear ratio (i.e. the ratio of input speed to output speed) to a minimum and maximum calibrated gear ratio value. The TCM performs this comparison while driving in a fix gear, during gear engagement, and during shifting from one gear to another.

OBDII Code P1D97 - Incorrect Gear Ratio Clutch 'A' Or 'D' Defective - AutoCodes.com — P1D97 Code - Incorrect Gear Ratio Clutch 'A' Or 'D' Defective

What does this mean?

What are the Possible Causes of the DTC P1D97?

Faulty Transmission Internal Components

How to Fix the DTC P1D97?

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 P1D97 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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Need more information on how to fix the P1D97 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1D97 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1D97 Acura — Generator Motor Phase Current Sensors Multiple Failure
P1D97 Chrysler — Incorrect Gear Ratio Clutch 'A' Or 'D' Defective
P1D97 Dodge — Incorrect Gear Ratio Clutch 'A' Or 'D' Defective
P1D97 Fiat — Incorrect Gear Ratio Clutch 'A' Or 'D' Defective
P1D97 Honda — Generator Motor Phase Current Sensors Multiple Failure
P1D97 Jeep — Incorrect Gear Ratio Clutch 'A' Or 'D' Defective

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 P1D97 Code

1. What are the common symptoms of OBDII code P1D97 (Incorrect Gear Ratio Clutch 'A' or 'D' Defective)?

- Common symptoms may include transmission slipping, difficulty shifting gears, poor acceleration, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P1D97?

- The code P1D97 can be triggered by issues such as a defective clutch 'A' or 'D', low transmission fluid levels, a faulty transmission control module, or mechanical problems in the transmission system.

3. How serious is OBDII code P1D97?

- OBDII code P1D97 should be addressed promptly as it can lead to further damage to the transmission if left unresolved. It is recommended to diagnose and repair the issue as soon as possible.

4. Can I continue driving with OBDII code P1D97 present?

- It is not advisable to continue driving with OBDII code P1D97 present, as it can potentially cause more damage to the transmission system and lead to costly repairs.

5. How can I diagnose OBDII code P1D97?

- Diagnosing OBDII code P1D97 typically involves using a scan tool to retrieve the code, inspecting the transmission system for any visible issues, checking transmission fluid levels, and conducting a thorough inspection of the clutch components.

6. What are some repair tips for fixing OBDII code P1D97?

- Repair tips for OBDII code P1D97 may include replacing the defective clutch 'A' or 'D', checking and topping up transmission fluid levels, resetting the transmission control module, and inspecting for any mechanical issues in the transmission system.

7. How much does it cost to repair OBDII code P1D97?

- The cost of repairing OBDII code P1D97 can vary depending on the specific cause of the issue, the extent of the damage, and the labor rates in your area. It is recommended to consult with a professional mechanic for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code P1D97 at home?

- While some basic troubleshooting steps can be performed at home, repairing OBDII code P1D97 often requires specialized tools and expertise. It is recommended to seek assistance from a qualified mechanic for proper diagnosis and repair.

9. How long does it take to repair OBDII code P1D97?

- The time required to repair OBDII code P1D97 can vary depending on the complexity of the issue, the availability of parts, and the skill level of the mechanic. In general, it may take a few hours to a full day to complete the repair.

10. Is OBDII code P1D97 a common issue in certain vehicle makes and models?

- OBDII code P1D97 can occur in various vehicle makes and models, particularly those equipped with automatic transmissions. It is recommended to check for any manufacturer-specific technical service bulletins related to this code.