Fuel gauge won’t move from full

[Gregg0]

Ive just installed a replacement iginition/security set (ECU, BCM, PIM) because my old ECU was faulty (check power train error and codes indicated ECU was faulty.

The new set was from a 2005 v6 sedan and mine is 2005 v6 Ute.

If works perfectly except my fuel gauge reads full and doesn’t change.

Any suggestions on how to correct?

 

[Fu Manchu]

That might be due to a faulty BCM.

 

[Gregg0]

Hmm - my old bcm is good - I could swap them, but would need to get it reprogrammed it match the new ecu.