Fuel pump relay location

Any chance someone removed it and rewired the system so the pump runs all the time the ignition switch is on? I have read about that before. The clue would be you can hear the hum of the pump any time the ignition switch is on. That creates a major fire threat in a crash. If you hear the pump run for one second when you turn on the ignition switch, then it turns off until you start cranking the engine, the circuit is working properly.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Any chance your car is a late 1995 or early 1997 production? Those years could be different. Here, this first diagram is for a 1995, and the arrow is pointing at the driver's window, (I guess it should be intuitively obvious it is pointing to the rear seat). The written description again says "under the rear seat", but it makes no mention of being next to the battery.

For the 1997 model, there are two diagrams. The second one is quite different and is the second one posted here. The first diagram is identical to the previous one for the 1996 model. It is not clear if the 1997 uses the separate relay in the rear seat, the relay module up front, or both.

Hello,

Here is more information

The fuel pump relay (K27) is switched by a ground signal from the control unit at terminal 86. If the contact is closed, the fuel pump (M3) is connected to terminal 30 (B+) via terminal 87. Circuit 30 is protected by a 30 A fuse.

With models 129, 140, 202, 208, the fuse is attached to the relay.

On vehicles with two fuel pumps, the pumps are connected in parallel.

The fuel pump relay is inside of the relay module.

(With diagrams below)

Please let us know what happens.

Cheers, Ken