P1484 Fault Code

Jeep – CATALYTIC CONVERTER OVERHEAT DETECTED

For Chrysler, Dodge, and Jeep, fault code P1484 is logged when the powertrain control module (PCM) has detected that the catalytic converter is overheating.

The catalytic converter is found in the exhaust system. It is responsible for reducing the amount of unburnt fuel particulates that leave the vehicle through the exhaust system. This is done to comply with increasingly strict emission regulations.

Due to its function and location, it can be susceptible to overheating under certain conditions. This means that its temperature is carefully monitored to protect it, especially considering the high cost of replacing a damaged catalytic converter.

Overheating can be caused by a number of issues. One of the most common issues is a faulty or failing catalytic converter, which can be an expensive fix.

Excessive unburnt fuel in the exhaust gases causes the component to essentially work too hard. This can be caused by a running rich condition upstream of the catalytic converter. Be sure to look out for codes like P0172 which can indicate this type of issue.

Additionally, a faulty sensor can lead to this issue, which may indicate that there is no overheating actually present.

See generic codes: P0420

Dodge – CATALYTIC CONVERTER OVERHEAT DETECTED

For Chrysler, Dodge, and Jeep, fault code P1484 represents the same issue. For more information on the problem and similar generic fault codes, please see the above description for Jeep.

See generic codes: P0420

Chrysler – CATALYTIC CONVERTER OVERHEAT DETECTED

For Chrysler, Dodge, and Jeep, fault code P1484 represents the same issue. For more information on the problem and similar generic fault codes, please see the above description for Jeep.

See generic codes: P0420

Ford – VARIABLE LOAD CONTROL MODULE PIN 1 OPEN

For Ford, fault code P1484 is logged when the powertrain control module (PCM) has detected an issue with the variable load control module.

The code indicates that there is an open circuit in the module, specifically for the first pin.

All modern vehicles have various control modules. These are essentially onboard computers that receive input signals from various electronic components throughout the vehicle and control these components based on these signals.

A short or open circuit leading to one of these control modules means that the module in question cannot operate properly.

This can cause a host of issues throughout the vehicle as most systems rely on a control module for proper operation.

This means it is very important to have any issue like this resolved immediately to restore the driveability of the vehicle.

The cause for this issue will typically be found in the circuit for the first pin in the control module. These can include broken or bent pins, damaged

Despite being a relatively straightforward code, it is considered very rare. This is most likely due to the fact that only certain Ford models can even log this fault code.

While not the same module, P0606 represents a similar issue for the PCM. These typically have the same causes and fixes.

See generic codes: P0606