AutoCodes – Generic – P1D93

P1D93 Code - Incorrect Gear Ratio Clutch 5 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: P1D93 indicates Incorrect Gear Ratio Clutch 5 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 9,153

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 P1D93 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 P1D93 - Incorrect Gear Ratio Clutch 5 Defective - AutoCodes.com — P1D93 Code - Incorrect Gear Ratio Clutch 5 Defective

What does this mean?

What are the Possible Causes of the DTC P1D93?

Faulty Transmission Internal Components

How to Fix the DTC P1D93?

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 P1D93 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 Help with the Code?

Get the P1D93 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1D93 Acura — Electric Powertrain Coolant Overheating
P1D93 Chrysler — Incorrect Gear Ratio Clutch 5 Defective
P1D93 Dodge — Incorrect Gear Ratio Clutch 5 Defective
P1D93 Fiat — Incorrect Gear Ratio Clutch 5 Defective
P1D93 Honda — Electric Powertrain Coolant Overheating
P1D93 Jeep — Incorrect Gear Ratio Clutch 5 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 P1D93 Code

1. What are the common symptoms of OBDII code P1D93 (Incorrect Gear Ratio Clutch 5 Defective)?

Symptoms may include harsh shifting, slipping gears, reduced acceleration, and illuminated check engine light.

2. What are the possible causes of OBDII code P1D93?

Possible causes include a malfunctioning clutch solenoid, damaged clutch components, low transmission fluid, or internal transmission issues.

3. How can I diagnose OBDII code P1D93?

Diagnosis typically involves using a professional OBDII scanner to retrieve the code, conducting a visual inspection of the transmission components, and performing a road test to observe the symptoms.

4. Can driving with OBDII code P1D93 cause further damage to my vehicle?

Continued driving with this code may lead to increased wear on the transmission components and potentially result in more severe transmission issues.

5. What are some repair tips for resolving OBDII code P1D93?

Repair tips may include checking and replenishing transmission fluid, inspecting and replacing damaged clutch components, or recalibrating the clutch solenoid.

6. Is it safe to continue driving my vehicle with OBDII code P1D93?

It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the transmission and potentially compromise driving safety.

7. Can OBDII code P1D93 be reset without performing any repairs?

Resetting the code without addressing the underlying issue may temporarily remove the check engine light, but the problem is likely to reoccur if not properly repaired.

8. How much does it typically cost to repair OBDII code P1D93?

The cost of repairs for this code can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to consult a professional mechanic for an accurate estimate.

9. Are there any preventive measures to avoid OBDII code P1D93 in the future?

Regular maintenance of the transmission system, such as timely fluid changes and inspections, can help prevent issues that may trigger this code.

10. Can I repair OBDII code P1D93 on my own, or should I seek professional help?

While some simple repairs like checking transmission fluid levels can be done by car owners, diagnosing and fixing complex transmission issues related to this code often require the expertise of a qualified mechanic.