Engine-CodesDodge – P0730 Dodge

P0730 Dodge Code - Incorrect Gear Ratio

Quick Answer

When the diagnostic trouble code P0730 appears on a Dodge vehicle, it indicates an incorrect gear ratio detected by the transmission control module. Common causes include Low transmission fluid levels or poor quality fluid, Worn or damaged transmission components, Faulty transmission control module. 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
P0730 Dodge indicates Incorrect Gear Ratio.
Common causes
Common causes include Low transmission fluid levels or poor quality fluid, Worn or damaged transmission components, Faulty transmission control module.
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.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0730 Dodge Description

When the diagnostic trouble code P0730 appears on a Dodge vehicle, it indicates an incorrect gear ratio detected by the transmission control module. This means that the transmission is not shifting properly between gears, leading to issues with acceleration, fuel efficiency, and overall performance. The incorrect gear ratio can result in harsh shifting, slipping gears, and potential damage to the transmission if left unchecked. This problem can be caused by various underlying issues within the transmission system.

OBDII Code P0730 Dodge - Incorrect Gear Ratio
P0730 Dodge Code - Incorrect Gear Ratio

Common Causes of P0730 Dodge

  1. Low transmission fluid levels or poor quality fluid
  2. Worn or damaged transmission components
  3. Faulty transmission control module
  4. Mechanical issues within the transmission
  5. Electronic sensor malfunction

Symptoms of P0730 Dodge

  1. Delayed or erratic shifting
  2. Slipping gears
  3. Harsh or rough shifting
  4. Decreased fuel efficiency
  5. Illuminated check engine light

How to Fix P0730 Dodge

  1. Check and refill transmission fluid to proper levels
  2. Inspect and replace worn or damaged transmission components
  3. Test and potentially replace the transmission control module
  4. Conduct a thorough transmission diagnostic to identify any mechanical issues
  5. Calibrate or replace electronic sensors as needed

Cost to Fix P0730 Dodge

The cost of repairing a P0730 code on a Dodge vehicle can vary depending on the specific issue causing the incorrect gear ratio. In general, the repair costs can range from $200 to $1500, including parts and labor. It is important to consider that diagnostic time and labor rates can vary between auto repair shops, so it is advisable to obtain quotes from multiple sources to ensure a competitive price.

Tech Notes for P0730 Dodge

Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

When is the Code Detected?

The TCM has detected that the transmission is trying to mechanically shift to a lower gear than intended

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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.

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