AaronSim · Jul 10, 2019

Fuel heater stopped working last year,have took sensor off from behind bumper put it in fridge , put tester on & got a circuit . Shorted plug with engine running no heater.
Can find no sign of it on any wiring diagram.
Anyone know where fuses are as I can’t trace wire back & don’t seem to be getting any feed in

Nodge68 · Jul 10, 2019

If it's a FL1 TD4 then fuse 5 of the engine bay fuse box is for the FBH.

AaronSim · Jul 10, 2019

Nodge68 said:
If it's a FL1 TD4 then fuse 5 of the engine bay fuse box is for the FBH.

Will have another look but tried every fuse I could find

Madmustang · Jul 10, 2019

When you shorted the circuit did you hear the dowsing pump clicking away in the drivers side wheel arch?

AaronSim · Jul 10, 2019

Madmustang said:
When you shorted the circuit did you hear the dowsing pump clicking away in the drivers side wheel arch?

Not sure will take sensor off again @ weekend & double check thanks

AaronSim · Jul 11, 2019

AaronSim said:
Not sure will take sensor off again @ weekend & double check thanks

Just remember’d does the engine have to be running @ this point or just the ignition turned on

Nodge68 · Jul 11, 2019

AaronSim said:
Just remember’d does the engine have to be running @ this point or just the ignition turned on

The engine needs to be running, unless you have the timer or remote control option.

AaronSim · Jul 13, 2019

Nodge68 said:
The engine needs to be running, unless you have the timer or remote control option.

Had engine running shorted switch nothing but have tested the three leads on other plug Got reading 6.55 on orange wire socket 2

Madmustang · Jul 15, 2019

Have you check the connector on the pump it's self?

Nodge68 · Jul 15, 2019

You could do with checking the current across fuse 5.

diveandy · Jul 15, 2019

Could be in lockout mode - see https://www.landyzone.co.uk/land-rover/fbh-all-you-need-to-know.207143/

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