Sub Tank Issue

[Streetsy]

hello all, I have just purchased my first Patrol, a 03 Gu 4.8l, having an issue with the sub tank button and after searching and finding out about the transfer operation etc etc, mine still doesn' t transfer, its like the sub tank button is dead. It does nothing, the Sub tank light comes on with reds before stating, then goes out when engine starts

Q, should there be a light in the button when it has been pressed and operating ???? could someone please Help me :(

kind regards Streetsy

[MudRunnerTD]

Yes my Sub tank switch has a light on it that stays on while the sub tank is transferring and then turns off automatically when complete. The transfer is very very slow.

[the evil twin]

Disconnect the battery for 30 minutes or so.
That will reset the Sub Tank Computer.

If it faults out again then you will need to read the code as per the service manual.

If there is no code then you can try extra earths from the tank to the chassis/body

[Streetsy]

thankyou so much MudRunner and the evil twin, kind regards Streetsy