How to reset a 2013 Dodge Avenger computer?
The quickest way to reset the Avenger’s engine computer is to disconnect the battery for a short period to clear adaptive memory, then reconnect and drive so the system relearns. You can also use an OBD-II scan tool to clear codes and initiate a relearn. If problems persist after a reset, further diagnostics are advised.
In this guide, we outline two practical reset methods for the 2013 Dodge Avenger’s PCM (engine computer) and, where relevant, the transmission control module. We’ll also cover what to expect during the relearn process, potential risks, and when to seek professional help. Note that resetting can clear nonvolatile memories like radio codes and clock settings, and that underlying mechanical issues won’t be solved by a reset alone.
Two practical reset methods
Battery-disconnection reset
To clear adaptive memory from the PCM (and possibly the transmission’s adaptive data), you can perform a controlled battery disconnect. This is a common DIY approach but may require re-entering radio/security codes and reinitializing certain systems.
- Park on level ground, engine off, key removed, and engage the parking brake. Ensure no tools are near moving parts.
- Disconnect the negative terminal (−) of the battery first, using a proper wrench or terminal release.
- Disconnect the positive terminal (+) afterward to completely isolate the battery from the car’s electrical system.
- Wait for 15 minutes (some owners leave it longer, up to 30 minutes, to maximize capacitor discharge).
- Reconnect the positive terminal first, then the negative terminal. Tighten the terminals securely.
- Turn the ignition to ON (do not start the engine immediately) and wait a few seconds for modules to initialize.
- Start the engine and drive normally. You may need to re-enter any radio or security codes if prompted.
After this procedure, the engine and, if applicable, the transmission may need a short drive cycle to complete the relearn. If the check engine light returns or codes reappear, further diagnosis is required.
Using a diagnostic scan tool to reset
Using an OBD-II scanner with the ability to clear DTCs (diagnostic trouble codes) and reset PCM adaptive memory offers a less disruptive alternative and avoids prolonged battery disconnects.
- Locate and connect a compatible OBD-II scan tool to the vehicle’s OBD-II port (usually under the driver’s side dash).
- Turn the ignition to ON (engine off) and power up the scan tool.
- Select the option to clear or erase trouble codes (DTCs) and, if available, choose “Reset PCM/ECU” or similar adaptive memory reset.
- Follow the tool’s prompts to complete the reset, then disconnect the tool if required.
- Start the engine and drive normally to complete the relearn cycle. Monitor for any codes that reappear.
Note that not all scanners can perform a full PCM adaptive reset, and some codes may require the underlying issue to be addressed before a clean relearn can occur.
Important caveats and safety tips
Resetting the computer can clear stored data, including radio codes and security settings. Be prepared to re-enter codes and re-sync clocks after any battery work. If you have a factory alarm or keyless entry system, consult your owner’s manual or dealer documentation before disconnecting power. If the check engine light stays on after a reset, or if drivability problems persist, seek professional diagnostics to identify potential sensor faults or mechanical issues.
What to do after reset
To maximize the chances of a successful relearn, drive the car under normal conditions in a variety of speeds and loads. This typically means a mix of city and highway driving for about 15–30 minutes, avoiding aggressive acceleration and towing or heavy loads during the initial relearn period. If the vehicle runs rough, stalls, or fails to adapt after a full cycle, a mechanic may need to inspect the engine and transmission sensors, exhaust system, or related components.
Summary
Resetting a 2013 Dodge Avenger’s computer can be done through a battery disconnect or via a diagnostic scan tool. Each method clears stored codes and allows the engine and transmission control modules to relearn operating parameters. While a reset can resolve certain idle, fuel trim, or drivability quirks, it does not fix mechanical problems. If issues persist after a reset, consult a qualified technician for a thorough diagnostic.
