René, if you have doubts about the fuel pump control module you can bypass it as below - module connector pin1 to pin 5 and pin 4 to pin 8. (Note wiring colour codes change between module and pump, black becomes positive and white return). It may throw a fault code but engine should run.

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I understand they are normally reliable but bought one as a spare here recently.

I cannot comment on measurable voltages but imagine a PCM output from module is controlled via an FPC signal (white wire) from ECU pin 81.


Richard

2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone