AutoCodes – Generic – P1DA5

P1DA5 Code - Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' 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: P1DA5 indicates Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' 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 2,245

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 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1DA5 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 fixed gear, during gear engagement, and during shifting from one gear to another.

OBDII Code P1DA5 - Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' Defective - AutoCodes.com — P1DA5 Code - Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' Defective

What does this mean?

What are the Possible Causes of the DTC P1DA5?

Faulty Transmission Internal Components

How to Fix the DTC P1DA5?

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 P1DA5 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 P1DA5 code?

Need more information on how to fix the P1DA5 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1DA5 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1DA5 Acura — Voltage Control Unit V1 Voltage Sensor Circuit Low Voltage
P1DA5 Chrysler — Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' Defective
P1DA5 Dodge — Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' Defective
P1DA5 Fiat — Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' Defective
P1DA5 Honda — Voltage Control Unit V1 Voltage Sensor Circuit Low Voltage
P1DA5 Jeep — Incorrect Gear Ratio Clutch 'C' 'D' Or 'E' 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 P1DA5 Code

What does the OBDII code P1DA5 mean?

The OBDII code P1DA5 indicates an incorrect gear ratio detected in the transmission, specifically related to Clutch 'C', 'D', or 'E', suggesting that the transmission is not shifting properly.

What are the common symptoms of the P1DA5 code?

Common symptoms include abnormal transmission behavior, such as slipping, harsh shifting, delayed engagement, or the vehicle getting stuck in a particular gear.

What are the possible causes of the P1DA5 code?

Possible causes include worn or damaged clutches, transmission fluid issues (such as low levels or contamination), faulty transmission control module (TCM), or wiring and connector problems related to the transmission.

Can I drive my vehicle with the P1DA5 code?

While it might be possible to drive the vehicle, it is not recommended as it can lead to further transmission damage and potentially unsafe driving conditions.

How can I diagnose the P1DA5 code?

To diagnose the P1DA5 code, use an OBD-II scanner to confirm the code, inspect the transmission fluid level and condition, check for any wiring or connector issues, and perform a thorough inspection of the clutches involved.

What repairs are typically needed for the P1DA5 code?

Repairs may include replacing worn or damaged clutches, repairing or replacing the transmission control module, fixing wiring issues, or flushing and replacing the transmission fluid.

Is it safe to clear the P1DA5 code without repairs?

Clearing the P1DA5 code without addressing the underlying issue is not safe, as the problem will likely persist and can lead to further damage to the transmission.

What type of transmission fluid should I use if I suspect P1DA5?

Refer to the vehicle ownerâ€™s manual for the specified type of transmission fluid, as using the incorrect fluid can exacerbate transmission issues.

How much can it cost to repair the issues related to code P1DA5?

Repair costs can vary widely depending on the specific problem, but they can range from a few hundred dollars for minor fixes to several thousand dollars for a complete transmission rebuild or replacement.