Fuel pump watchdog wire (white with green stripe) voltage

[Pezzavr4]

Hi All,

I am currently chasing a fuel pump non start issue with my 2003 2.0tddi

I that that I have an issue with one of the fuel pump solenoids but had a question about the watchdog
Wire pin 4 of the fuel pump multiplug (White with green stripe)

Ive searched high and low but collated AI results state that this voltage should be
approximately 5v when the keyswitch ignition is on but engine not running.
I am seeing 12 volts on this wire pin 57 of ecu but taken at the multiplug just in front of the engine bay
Fusebox, disconnected.

Does anyone know what this voltage should be please or know where I could find this info out please?

Thanks Dek

[metalworker0]

5 VOLT is the canbus system
someone will be along soon .. to fall out over; whether that is present on a 2003 van soon

all the best.mark

[Pezzavr4]

Thanks Mark

That is reading 5volts just curious about this watchdog wire voltage ,if anyone knows?

Are there any technical manuals which may have details?