P128C Dodge Code - Transmission Control Module Power Control Circuit High
Quick Answer
The P128C code for Dodge vehicles indicates a Transmission Control Module (TCM) Power Control Circuit High. Common causes include Faulty Transmission Control Module (TCM), Damaged wiring or connectors in the power control circuit, Short circuit in the power control circuit. 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
- P128C Dodge indicates Transmission Control Module Power Control Circuit High.
- Common causes
- Common causes include Faulty Transmission Control Module (TCM), Damaged wiring or connectors in the power control circuit, Short circuit in the power control circuit.
- 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 P128C Dodge Description
The P128C code for Dodge vehicles indicates a Transmission Control Module (TCM) Power Control Circuit High. This means that the TCM is detecting a higher than normal voltage in the power control circuit, which can lead to various issues with the transmission system. The TCM is responsible for controlling various functions within the transmission, such as shifting gears, torque converter lockup, and more. When the power control circuit is reading high voltage, it can cause the TCM to malfunction and lead to erratic transmission behavior.
Common Causes of P128C Dodge
- Faulty Transmission Control Module (TCM)
- Damaged wiring or connectors in the power control circuit
- Short circuit in the power control circuit
- Malfunctioning sensor related to the TCM
- Electrical issues within the transmission system
Symptoms of P128C Dodge
- Harsh or delayed shifting
- Transmission slipping
- Loss of power and acceleration
- Limp mode activation
- Illumination of the Check Engine Light
How to Fix P128C Dodge
- Begin by using a diagnostic scanner to retrieve the specific error codes and data related to the TCM power control circuit high.
- Inspect the wiring and connectors in the power control circuit for any damage or corrosion. Repair or replace as necessary.
- Test the TCM and related sensors for proper functionality. Replace any faulty components.
- Clear the error codes and perform a test drive to ensure the issue has been resolved.
- If the problem persists, consider seeking professional help from a certified mechanic or dealership for further diagnosis and repair.
Cost to Fix P128C Dodge
The typical repair costs for addressing a Transmission Control Module Power Control Circuit High issue can range from $200 to $600, depending on the extent of the damage and the specific components that need to be replaced. This estimate includes parts and labor. Keep in mind that the actual cost may vary based on the location, vehicle make and model, and the hourly labor rates of the repair shop. It is advisable to obtain quotes from multiple auto repair shops to ensure a competitive price.
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Frequently Asked Questions about P128C Dodge Code
1. What are the common symptoms of OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High?
The common symptoms include harsh shifting, transmission slippage, decreased fuel efficiency, and the vehicle going into limp mode.
2. What are the possible causes of OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High?
Potential causes may include a faulty transmission control module, damaged wiring or connectors in the power control circuit, or a malfunctioning power relay.
3. How can I diagnose the OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High?
Diagnosis typically involves using a scan tool to retrieve the code, inspecting the wiring and connectors for damage, testing the power relay, and checking the transmission control module for proper functioning.
4. Can I continue driving my Dodge with OBDII code P128C related to the Transmission Control Module Power Control Circuit High?
It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage to the transmission system. It's best to address the issue promptly.
5. How can I repair OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High?
Repair options may include replacing the transmission control module, repairing or replacing damaged wiring or connectors, and ensuring the power relay is functioning correctly.
6. Are there any DIY tips for addressing OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High?
While some basic inspections and checks can be done by DIY enthusiasts, it is recommended to consult a professional mechanic for a proper diagnosis and repair of this code.
7. Is OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High a common issue?
While not as common as some other OBDII codes, issues related to the Transmission Control Module Power Control Circuit High can occur in Dodge vehicles, especially in older models or those with high mileage.
8. Can extreme weather conditions affect the occurrence of OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High?
Extreme weather conditions, such as excessive heat or cold, can potentially impact the performance of the transmission control module and associated components, leading to the triggering of this code.
9. How much can I expect to pay for repairs related to OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High?
Repair costs can vary depending on the exact cause of the issue and the labor rates in your area. It's advisable to obtain multiple quotes from reputable mechanics to compare prices.
10. Will resetting the OBDII code P128C in a Dodge related to the Transmission Control Module Power Control Circuit High make it go away permanently?
Simply resetting the code without addressing the underlying issue will not make it go away permanently. It's crucial to diagnose and repair the root cause to prevent the code from reoccurring.
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