Saturn SL1 (1991-2002) Aftermarket Relay Guide
Understanding, diagnosing, and replacing the multi-purpose relays in your Saturn SL1.
- Relay failure in an SL1 often presents as a no-start, no-crank, or stalling issue, commonly tied to the fuel pump or starter circuits.
- Aftermarket relays from reputable brands are a reliable and affordable repair choice for this vehicle.
- Relays are easy to replace yourself; they are plug-and-play components located in fuse boxes in the engine bay and passenger footwell.
- You can often diagnose a bad relay by swapping it with an identical one from a different circuit.
Is Your Saturn SL1 Relay Failing?
A failing relay in your Saturn SL1 can cause a variety of frustrating electrical problems. Because these relays are used in multiple systems, the symptoms can range from a minor inconvenience to leaving you stranded. The most common issues are related to the fuel pump and starter circuits. A bad fuel pump relay can prevent the car from starting or cause it to stall intermittently, while a faulty starter relay will result in a no-crank, no-start situation.
Common Failure Points
Forum discussions with SL1 owners point to the fuel pump relay as a frequent source of trouble. Sometimes the issue isn't the relay itself, but a poor connection at the interior fuse panel, which is located in the passenger footwell. Over time, the contacts can get loose or corroded, leading to intermittent power loss to critical components like the fuel pump.
Choosing the Right Aftermarket Relay
For a vehicle like the 1991-2002 Saturn SL1, aftermarket relays are a perfectly acceptable and cost-effective choice. The original equipment (OEM) relays are no longer produced by Saturn, and the available OEM-branded parts are often made by the same manufacturers as the aftermarket versions. Aftermarket brands like Standard Motor Products and others produce relays that meet or exceed original specifications. These parts are built in facilities with high-quality standards (TS16949 and ISO9001 certified) and use durable materials designed to withstand under-hood conditions.
Since many relays in your SL1 are identical, a simple diagnostic trick is to swap a suspect relay with a known good one from a non-essential circuit (like the horn or blower motor) to see if the problem moves. If it does, you've found your bad relay.
Estimated Costs for Relay Replacement
| Part Type | Price Range |
|---|---|
| New Aftermarket Relay | $4 - $20 |
| Shop Labor for Diagnosis & Replacement | $50 - $100 |
Frequently Asked Questions (FAQ)
Where are the relays located on a 1991-2002 Saturn SL1?
Your Saturn SL1 has two main fuse/relay panels. One is located under the hood, typically on the driver's side. The other, called the Instrument Panel Junction Block, is inside the car in the passenger footwell, near the center console. A diagram on the panel cover should identify which relay controls which component.
Can a bad relay cause my car to stall?
Yes. A failing fuel pump relay is a common cause of stalling in the Saturn SL1. The relay may work intermittently, causing the fuel pump to lose power while you are driving. The engine will die as if it has run out of gas, but may start again after it has cooled down.
My car won't crank. Could it be a relay?
It could be. The starter relay is a key component in the starting circuit. If the relay is bad, it won't send power to the starter motor when you turn the key. You'll likely hear no click or just a single, faint click when trying to start the car. However, be sure to check the battery and its connections first, as these are more common causes of a no-crank condition.
Is it difficult to replace a relay myself?
No, replacing a relay is one of the easiest repairs you can do. It is a simple plug-and-play part. You just locate the old relay, pull it straight out, and push the new one in. No special tools are required, though a pair of pliers can help if the relay is difficult to grip.
Technical Specifications
OEM Part Numbers: 12077866 19116058 12135180 13500126
Most relays for this application are 12V DC, multi-purpose, with 4 or 5 blade-style terminals.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Saturn SL1: