Pcm Code E020, Open Fuel Pump Circuit (1 Of 3): Action

PCM turns on SERVICE VEHICLE SOON message. PCM monitors voltage on circuit No. 120 to detect fuel pump voltage faults.

NOTE: Test numbers refer to numbers on diagnostic chart.

Checks for engine to start with fuel pump powered through fuel pump relay. If engine does not start, proceed to PCM CODE E020 (2 OF 3).
Zero volts with engine running indicates an open from fuel pump power circuit to PCM. Fuel pump relay is not at fault.