Circuit/System Verification
NOTE:
An open or a short to voltage in the control circuit will cause both the Fuel Pump Relay Control Circuit Open Test Status and the Fuel Pump Relay Control Circuit High Voltage Test Status parameters to display Fault.
Ignition ON, command the fuel pump relay ON and OFF with a scan tool while observing the following control circuit status parameters:
- Fuel Pump Relay Control Circuit Low Voltage Test Status
- Fuel Pump Relay Control Circuit Open Test Status
- Fuel Pump Relay Control Circuit High Voltage Test Status
Each parameter should toggle between OK and Not Run or Not Run and OK.