1997 VW Jetta Fuel Pump Relay Location: A Complete Guide to Finding and Fixing It
The bottom line: The fuel pump relay on a 1997 Volkswagen Jetta is located underneath the dashboard on the driver's side, attached to the fuse and relay panel. It is the relay on the bottom row, far right side, typically labeled as relay number 12 or 167 depending on the specific model variation . If your Jetta cranks but won't start, this relay is often the first thing to check.
Understanding the Fuel Pump Relay and Its Role
The fuel pump relay is a small electronic switch that controls power delivery to the fuel pump. When you turn the ignition key, the relay activates and sends battery voltage to the fuel pump, allowing it to pressurize the fuel system. Without a working relay, the fuel pump won't run, and your engine won't start .
In the 1997 Jetta, the fuel pump relay is part of a larger fuse and relay panel mounted under the dashboard. This panel contains multiple relays and fuses that control various electrical systems in the vehicle . Understanding exactly where to find the relay and how to test it can save you time and money on unnecessary repairs.
Where Exactly Is the Fuel Pump Relay Located?
The fuse and relay panel on a 1997 Volkswagen Jetta is located under the left side of the dashboard, near the steering column . Here is how to access it:
Step 1: Sit in the driver's seat and look under the dashboard, just to the left of the steering column. You will see a rectangular panel cover.
Step 2: Remove the cover. On some models, the cover simply snaps off. On others, you may need to use a flathead screwdriver to gently pry it loose.
Step 3: Once the cover is removed, you will see a grid of fuses and relays. The fuel pump relay is typically located on the bottom row, far right side of the panel .
Step 4: Look for a relay labeled with the number 12 or 167. Some sources indicate the relay can also be identified by its position as the first relay on the left in the bottom row for certain GLX VR6 models .
The relay itself is a small, square plastic box with multiple pins on the bottom. It is usually black or gray and about one inch square. The fuse panel diagram printed on the cover or in your owner's manual will show the exact location and labeling for your specific Jetta model .
Confirming You Have the Correct Relay
Before you pull any relays, it helps to double-check you are looking at the right one. Here are a few ways to confirm:
Check the relay number. Many 1997 Jetta fuel pump relays are numbered 167 . If you see a relay with this number on the bottom row, far right, that is likely the fuel pump relay.
Look at the fuse box diagram. The interior fuse box cover often has a diagram showing which relay is which. On the diagram, the fuel pump relay is usually labeled "Fuel Pump" or "FP" .
Listen for the relay click. With the ignition off, have someone turn the key to the "ON" position (not start). You should hear a faint click from the relay if it is working. If you hear no click, the relay may be faulty.
Why the Fuel Pump Relay Fails
Fuel pump relays are subject to wear and tear over time. The constant switching on and off, combined with heat and vibration, can cause the internal contacts to burn or the coil to fail. Common symptoms of a bad fuel pump relay include:
- Engine cranks but will not start. This is the most common symptom. The starter motor turns the engine over, but the fuel pump never pressurizes the system .
- No fuel pump noise. When you turn the ignition to the "ON" position, you should hear a brief whirring sound from the fuel pump in the rear of the car. If you hear nothing, the relay or pump may be dead.
- Intermittent stalling. A failing relay may work sometimes and fail others, causing the engine to die unexpectedly while driving .
- Car starts after sitting. If the car starts after sitting for a while but then refuses to start after a short drive, the relay could be overheating and failing.
How to Test the Fuel Pump Relay
Testing the fuel pump relay is straightforward and requires only a few basic tools. You can test it without removing it from the vehicle or by pulling it out for bench testing.
Testing While Still Installed
1. Listen for the relay. Turn the ignition to the "ON" position. Place your hand on the relay. You should feel it click and hear a faint sound. If you feel nothing, the relay may not be receiving power or may be faulty.
2. Use a test light or multimeter. With the ignition on, probe the terminals on the relay socket. You should have 12 volts at the power input terminal (usually pin 30). If you have power but no click, the relay coil may be bad.
Bench Testing the Relay
1. Remove the relay from the panel by pulling it straight out.
2. Locate the pin numbers. Most relays have a small diagram on the side showing pin numbers. The standard pins are 30 (power in), 87 (power out to fuel pump), 85 (coil negative), and 86 (coil positive).
3. Apply 12 volts to pins 85 and 86. Use a battery or a 12V power source. You should hear a distinct click when the relay activates.
4. Check continuity between pins 30 and 87. When the relay is activated, there should be continuity (zero resistance) between these two pins. If there is no continuity, the relay is faulty and needs replacement .
Jumping the Fuel Pump Relay for Diagnosis
If you suspect the relay is bad but want to confirm the fuel pump itself works, you can temporarily bypass the relay. This is called "jumping" the relay and is a common diagnostic technique .
Warning: This test should only be done briefly for diagnostic purposes. Do not drive the car with the relay jumped.
Step 1: Remove the fuel pump relay from the panel.
Step 2: Look at the relay socket. You will see four or five pin slots. Identify the slots for pins 30 (constant power) and 87 (power to the fuel pump).
Step 3: Use a short piece of wire or a paperclip to connect pin 30 to pin 87. Make sure the wire is securely inserted.
Step 4: Turn the ignition to the "ON" position. The fuel pump should run continuously. If you hear the pump running, the relay is the problem. If the pump still does not run, the issue is likely with the fuel pump itself, the wiring, or the fuse .
Step 5: Remove the jumper wire and reinstall the relay after testing.
Additional Components to Check
If the relay tests good but the fuel pump still does not run, there are a few other components to inspect:
Fuel pump fuse. The fuse for the fuel pump is located in the same fuse panel. On the 1997 Jetta, fuse number 18 (20A) protects the fuel pump circuit . Check this fuse first, as it is a common cause of no-start issues.
Inertia switch (fuel pump cutoff switch). Some 1997 Jetta models are equipped with an inertia switch that cuts power to the fuel pump in the event of a collision. This switch is typically located on the passenger side floor, near the heater, or behind the kick panel next to the fuse box. It has a red reset button on top. If the vehicle has been in an accident or experienced a hard impact, this switch may have tripped. Simply press the red button down to reset it .
Fuel pump itself. If the relay, fuse, and inertia switch all check out, the fuel pump itself may be faulty. The fuel pump is located inside the fuel tank and will need to be replaced if it fails.
Replacing the Fuel Pump Relay
Replacing the fuel pump relay is one of the easiest repairs you can do on a 1997 VW Jetta. The relay simply pulls out and pushes back in. No tools are required.
Step 1: Locate the relay as described above.
Step 2: Grasp the relay firmly and pull it straight out of the socket.
Step 3: Insert the new relay. Make sure it is oriented the same way as the old one. The relay will only fit one way due to the pin configuration.
Step 4: Push the relay firmly into the socket until it clicks into place.
Step 5: Test the system by turning the ignition to the "ON" position. Listen for the fuel pump to prime.
A replacement fuel pump relay for a 1997 Jetta is inexpensive and widely available. The relay number 167 is a common replacement part that can be found at most auto parts stores or online retailers .
Why You Should Consider a KEMSO Fuel Pump
If you have determined that your fuel pump relay is working fine but the fuel pump itself has failed, it is important to choose a high-quality replacement. The fuel pump is the heart of your fuel system, and a cheap, low-quality pump can leave you stranded or cause damage to your engine.
Recommended: KEMSO Fuel Pump
KEMSO offers high-performance fuel pumps that are designed as direct OEM replacements for your 1997 VW Jetta. Each KEMSO fuel pump is built to meet or exceed original equipment specifications, ensuring a perfect fit and reliable performance. The company stands behind every product with a lifetime warranty, giving you confidence that your repair will last.
When you choose a KEMSO fuel pump, you are getting a product that has been rigorously tested for durability and performance. Whether you are a DIY mechanic or a professional technician, KEMSO fuel pumps make installation straightforward and worry-free.
Visit KEMSO's website to find the exact fuel pump for your 1997 VW Jetta: https://www.kemsoracing.com/
Common Questions About the 1997 Jetta Fuel Pump Relay
How much does a fuel pump relay cost?
A replacement relay typically costs between $10 and $20, making it one of the cheapest repairs you can perform.
Can a bad fuel pump relay cause the car to stall while driving?
Yes. If the relay fails intermittently, it can cut power to the fuel pump while the engine is running, causing the car to stall suddenly .
Will a bad relay drain the battery?
No. A faulty relay usually either works or does not work. It will not typically drain the battery.
How long does a fuel pump relay last?
There is no set lifespan, but many relays last 10-15 years or more. Heat and vibration can shorten their life.
Is the fuel pump relay the same for all 1997 Jetta models?
The location is generally the same, but the relay number may vary. The GL, GLX, GLS, and TDI models may use slightly different relays. Always check the number on the relay itself or consult your owner's manual .
Final Thoughts
Finding the fuel pump relay on a 1997 VW Jetta is a simple process that any DIYer can handle. The relay is located under the dashboard on the driver's side, on the bottom row of the fuse panel, far right. Testing and replacing the relay takes only a few minutes and can save you the cost of a trip to the mechanic.
If your Jetta cranks but does not start, start with the fuel pump relay. It is the most common cause of fuel delivery problems and the easiest to fix. If the relay checks out, move on to the fuse, inertia switch, and finally the fuel pump itself.
For a reliable fuel pump replacement, trust KEMSO. Their OEM-quality fuel pumps come with a lifetime warranty and are designed to keep your 1997 VW Jetta running smoothly for years to come. Visit https://www.kemsoracing.com/ to find the right fuel pump for your vehicle and get back on the road with confidence.