Main points
- The Transmission Control Module (TCM) is a crucial component in your Chrysler vehicle that manages the transmission’s operation.
- The TCM may need to be reset if the transmission is slipping or jerking during gear shifts.
- If the transmission is slow to shift gears or the shifts are harsh, a TCM reset may be necessary.
The Transmission Control Module (TCM) is a crucial component in your Chrysler vehicle that manages the transmission’s operation. Over time, the TCM may encounter issues that can affect the transmission’s performance. Resetting the TCM can often resolve these issues and restore the transmission to proper functioning.
Reasons to Reset the Chrysler TCM
There are several reasons why you might need to reset the Chrysler TCM:
- Transmission slipping or jerking: The TCM may need to be reset if the transmission is slipping or jerking during gear shifts.
- Delayed or harsh gear shifts: If the transmission is slow to shift gears or the shifts are harsh, a TCM reset may be necessary.
- Check Engine Light (CEL) on: The CEL may illuminate if the TCM detects a problem. Resetting the TCM can turn off the CEL if the issue is resolved.
- Vehicle stuck in limp mode: Limp mode is a safety feature that limits the transmission’s functionality to prevent further damage. Resetting the TCM can help exit limp mode.
How to Reset the Chrysler TCM (3 Methods)
There are three main methods to reset the Chrysler TCM:
Method 1: Using a Scan Tool
1. Connect a scan tool to the vehicle’s diagnostic port.
2. Go to the TCM menu.
3. Select the “Reset TCM” option.
4. Follow the on-screen prompts to confirm the reset.
Method 2: Disconnecting the Battery
1. Disconnect the negative battery terminal.
2. Wait 10-15 minutes for the vehicle’s electrical system to reset.
3. Reconnect the negative battery terminal.
Method 3: Manually Resetting the TCM
Note: This method may not work on all Chrysler models.
1. Start the vehicle and let it idle for 10 minutes.
2. Turn the ignition off and wait 30 seconds.
3. Turn the ignition back on and let it idle for 10 minutes.
4. Repeat steps 2-3 two more times.
Symptoms of a Faulty Chrysler TCM
If the TCM is faulty, you may experience the following symptoms:
- Transmission slipping or jerking
- Delayed or harsh gear shifts
- Check Engine Light (CEL) on
- Vehicle stuck in limp mode
- Transmission overheating
- Loss of power
How to Prevent TCM Problems
To prevent TCM problems, follow these tips:
- Keep up with regular vehicle maintenance.
- Avoid excessive towing or driving in extreme conditions.
- Have the transmission fluid checked and changed as recommended.
- Avoid shifting gears too quickly or aggressively.
Wrapping Up
Resetting the Chrysler Transmission Control Module (TCM) can be an effective way to resolve transmission issues. By following the steps outlined in this guide, you can safely and easily perform a TCM reset. If the issue persists or you suspect a more serious problem, don’t hesitate to consult a qualified mechanic.
Questions You May Have
1. How often should I reset the Chrysler TCM?
You should only reset the TCM if you are experiencing transmission problems.
2. Will resetting the TCM erase any fault codes?
Yes, resetting the TCM will erase all stored fault codes.
3. Can I reset the TCM myself?
Yes, you can reset the TCM yourself using the methods described in this guide. However, if you are not comfortable performing the reset, you can consult a mechanic.
