Note: Allpar does not take responsibility for the veracity of any information or opinions here, does not claim expertise, and is not responsible for any consequences. Please proceed at your own risk.

Chrysler Fault Code 53: Logic module fault

Code 53 is triggered when there is a fault in the logic module. When code 53 is triggered the power limited will not be lit and the system will not enter limp mode.

Before replacing the logic module, read the page ‘How to troubleshoot drivability issues’. Check the wiring and connections from the logic module to the power module.   Clean and re-grease the connectors with dielectric grease. Check the wiring from the O2 sensor to the harness. If the signal wire is grounded it will cause code 53. If that all fails, you may need to replace the logic module.

Sensors, Switches, and Other Systems | Main Repairs Page | EEKs

We make no guarantees regarding validity, accuracy, or applicability of information, predictions, or advice. Please read the terms of use and privacy policy. Copyright © 1994-2000, David Zatz; copyright © 2001-2016, Allpar LLC (except as noted, and press/publicity materials); all rights reserved. Dodge, Jeep, Chrysler, Ram, and Mopar are trademarks of Fiat Chrysler Automobiles.

Jeep Wrangler roof slider system cloth
How will Wrangler keep its tops “free”?

Here are the SEMA-car sneak peeks
CR and FCA quality

Envisioning the 2018 Jeep Cherokee

All Mopar Car and Truck News

Chrysler 300 Letter Cars  •  The Engine Cleanup Committee  •  Chrysler 300M

FCA at the Eiffels Car photography Chrysler: Port Melbourne