Help keep switched power reaching your fuel and ignition circuits with the Standard Ignition RY-457 Automatic Shutdown Relay, a direct-fit replacement for the 1999-2005 Jeep Grand Cherokee and 2002-2007 Jeep Liberty. Standard Ignition catalogs this part as an automatic shutdown (ASD) relay, and it is also listed under the names fuel injection relay, HVAC blower motor relay and ignition relay.
An automatic shutdown relay is an electrically controlled switch. When the engine computer energizes it, the relay supplies power to fuel and ignition system components, and it removes that power when it is de-energized. If a failed ASD relay is behind a crank-but-no-start, intermittent stalling or a loss of injector or ignition power, this unit replaces it. Diagnose the circuit first, because other faults can cause the same symptoms.
- Built for under-hood use: A composite housing is designed to protect the relay against harsh temperatures and demanding under-hood conditions.
- Certified production: The relay is made in TS16949 and ISO9001 certified facilities.
- OE ignition background: Standard Ignition is a global manufacturer of original equipment ignition products and maintains quality control throughout manufacturing, from components to the finished product.
See the "Vehicles it fits" section for the full fitment chart.
Interchange: R4821 · 56042216AB · 20360 · AR572
This part cross-references / interchanges with the following part numbers:
R4821, 56042216AB, 20360, AR572
Frequently Asked Questions
What does an automatic shutdown relay do?
It is an electrically controlled switch. When the engine computer energizes it, it supplies power to fuel and ignition system components, and it removes that power when it is de-energized.
Is this an ASD relay for the 1999-2005 Jeep Grand Cherokee?
Yes. The RY-457 is an automatic shutdown relay listed as a direct-fit replacement for the 1999-2005 Jeep Grand Cherokee.
Does the RY-457 fit the 2002-2007 Jeep Liberty?
Yes. It is listed as a direct-fit replacement for the 2002-2007 Jeep Liberty, and the "Vehicles it fits" section shows the full fitment chart.
What are signs this relay may need replacing?
A crank-but-no-start, intermittent stalling or a loss of injector or ignition power can occur if the relay has failed. Other faults cause these symptoms too, so diagnose the circuit before replacing it.
How is this relay built?
It uses a composite housing designed to protect against harsh temperatures and under-hood conditions, and it is made in TS16949 and ISO9001 certified facilities.
