Gasoline: PCM, Fuel Pump Relay Coil, Mass Air Flow Sensor, Fuel Injectors Trailer Tow Backup Lamps, Trailer Tow Park Lamps PCM Relay Coil, Ignition Coil (Gasoline only), Fuel Heater (Diesel only), Wastegate Solenoid (Diesel only), Injector Driver Module Relay Coil (Diesel only)ġ999: Air Bag Module 2000-2001: Washer Pump Instrument Cluster (Charge and Airbag Warning Lamps) Ignition Run Power Feed (Customer Access)īrake Shift Interlock, DRL Relay Coil, Speed Control Module, Backup Lamps, Trailer Tow Backup Lamp Relay Coil, Electronic Shift On The Fly Hub Lock Solenoid, Vacuum Pump Motor Stop Lamps, Center High-mount Stop Lamp, Trailer Tow Stop Lamp, Speed Controlĭome Lamp, Cargo Lamp, Courtesy Lamps, Running Board Lampsġ999: Generic Electronic Module (GEM), Powertrain Control Module (PCM), Anti-lock Brake System (ABS) Module, Brake Shift Interlock, Speed Control 2000-2001: Stop Lamp Switch (Logic): Generic Electronic Module (GEM), Powertrain Control Module (PCM), Four Wheel Anti-lock Brake System (4WABS) Module, Brake Shift Interlock, Cluster and PCM Keep Alive MemoryĪuxiliary Powertrain Control Module (APCM) (Diesel only), Instrument Cluster, GEM Module, Overdrive Cancel Switch, Idle Validation Switch (Diesel only), Overhead Console, Diesel PCM via ClutchĪir Bag Module (2000-2001), Passenger Air Bag Activation/Deactivation Switch, Blower Motor Relay Coilġ999: Electronic Flasher 2001: Air Bag Moduleġ999: Blend Door Actuator, Trailer Tow Battery Charge Relay Coil 2000-2001: A/C Clutch, Blend Door Actuator, Trailer Tow Batteiy Charge Relay Coil, Four Wheel Anti-Lock Brake System (4WABS), Turn Signalġ999: 4 Wheel Anti-Lock Brake System (4WABS) Module Wiper Motor, Wiper Run/Park Relay Coil, Wiper Hi/LO Relay Coil, Washer Pump Relay Coi Radio, Headlamp Switch Illumination, Remote Anti-Theft Personality (RAP) Module (1998) Glove Box Lamp, Map Lamps, Power Mirrors, Underhood Lamp
If your vehicle is displaying any of the symptoms above, or you suspect that your fuel pump relay is having an an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the component should be replaced.The fuse panel is located below and to the left of the steering wheel by the brake pedal.ġ999: Instrument Cluster, Power train Control Module (PCM) Keep Alive Memory While the fuel pump relay is a very simple component, it plays a very important role in the proper operation of the vehicle. If the fuel pump relay fails, it will cut off power to the fuel pump which will render it inoperable, and therefore silent, when the ignition is on. Most fuel pumps will produce a low volume hum or whine which can be heard from the inside the vehicle if listened for closely, or from the outside of the vehicle, near the fuel tank. No noise from the fuel pumpĪnother symptom that may hint at an issue with the fuel pump relay is no noise from the fuel pump when the key is switched on. This symptom can also be caused by a wide variety of other issues, so having the vehicle properly diagnosed is highly recommended. The engine may still crank when the key is turned, however it will not be able to start due to lack of fuel. If the fuel pump relay fails the fuel pump will be left without power. Engine does not startĪnother symptom of a faulty fuel pump relay is an engine that does not start. A faulty relay may allow the vehicle to be restarted a short while later, while a completely failed relay will not. If the fuel pump relay has an issue while the vehicle is operating it will cut off power to the fuel pump, which will cause the engine to stall. One of the first symptoms of an issue with the fuel pump relay is an engine that suddenly stalls. Usually a bad or failing fuel pump relay will produce a few symptoms that can alert the driver of the issues. As the fuel pump relay controls power to the fuel pump, any faults with it can cause issues with the fuel pump, which can cause drivability problems for the vehicle. The fuel pump relay is usually controlled by the ignition or Powertrain Control Module, and when switched on, will provide current to the fuel pump so that it may function. It is often found in the fuse box located in the engine bay and functions as the primary electronic switch that controls power to the fuel pump.
The fuel pump relay is an electronic component that is found on virtually all vehicles equipped with an internal combustion engine.