Fuel Pump Electronic Control Unit
Fuel pump Electronic Control Unit (ECU) is located behind inner panel, just behind driver's side rear wheelwell. See Fig 1. Testing information is not available from manufacturer. If problem exists with fuel pump ECU or wiring circuit, a Diagnostic Trouble Code (DTC) P1200 will be stored in Engine Control Module (ECM). Retrieve DTCs and perform appropriate diagnostic test. See SELF-DIAGNOSTICS - LX470 article.