Same as any newer car. Step 1, swap relay for one next to it that matches model #, driver side, under hood. If that doesn't work, With an ear at fuel tank, turn on key. You should hear it. If not, that's a great start, 99 out of 100 times it is the fuel pump failed.
If you are refering to trouble codes you have to use a code scanner or a scann tool. Check with Kragen for a free test.
Fuel pump pressure test.
Fuel pressure test at the fuel rail.
Fuel Pump Pressure Test Look at the Related links below for help.
A fuel pump pressure test could determine the condition of the fuel pump and fuel system.
Start with a fuel pump pressure test.
Where is the fuel pump fuse and relay on 1994 BMW 525i and how can I test to see why my fuel pump won't work
With a fuel pressure test at the fuel rail.
Fuel Pump fuse, relay, fuel filter, and all connections. A fuel pressure test will verify a defective fuel pump, or if it is simply not running, and has current to it.Fuel Pump fuse, relay, fuel filter, and all connections. A fuel pressure test will verify a defective fuel pump, or if it is simply not running, and has current to it.
Have a fuel pump pressure test done.
No, the fuel pump relay engages and sends voltage to the fuel pump. The fuel pump requires 12 V DC to operate properly. A fuel pressure test will verify the condition of the fuel pump.
If that is throttle body fuel injection, there is no fuel pump test port. You have to fabricate with some fittings and tap into the fuel line at the fuel filter.