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Home >> Oldsmobile >> 1999 >> Cutlass GL, 3.1 M >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel - Analog >> Self Diagnostic System >> Diagnostic Tests >> DTC P0463: Fuel Sender Sensor Open/ Shorted To Power

DTC P0463: Fuel Sender Sensor Open/ Shorted To Power

  1. Disconnect BCM Gray connector C2. Disconnect fuel sender connector. Using DVOM, check voltage between BCM Gray harness connector C2 terminal A4 and ground. If no voltage exists, go to next step. If voltage exists, go to step  7 .
  2. Disconnect left IP wiring harness junction block Black connector C3. Check resistance of Black/White wire from connector C3 terminal A12 to fuel sender connector terminal "D". If resistance is more than 2 ohms, go to next step. If resistance is 2 ohms or less, go to step  4 .
  3. Repair open circuit on Black/White wire. Clear DTC.
  4. Disconnect left IP wiring harness junction block Gray connector C2. Check resistance of IP wiring harness junction block between connector C2 terminal A1 and connector C3 terminal A12. If resistance is more than 2 ohms, go to next step. If resistance is 2 ohms or less, replace left IP wiring harness junction block. Clear DTC.
  5. Check resistance of Black wire between IP wiring harness junction block Gray connector C2 terminal A1 and BCM Gray connector C2 terminal A4. If resistance is more than 2 ohms, go to next step. If resistance is 2 ohms or less, replace fuel sender. Clear DTC. If DTC returns, replace BCM.
  6. Repair open circuit on Black wire between IP wiring harness junction block Gray connector C2 terminal A1 and BCM Gray connector C2 terminal A4. Clear DTC.
  7. Disconnect left IP wiring harness junction block Black harness connector C3. Remove Black/White wire from connector C3 terminal A12. Reconnect harness connector C3. Check voltage between Black/White wire and ground. If voltage exists, go to next step. If no voltage exists, go to step  9 .
  8. Repair short to voltage on Black/White wire. Clear DTC.
  9. Disconnect left IP wiring harness junction block Gray harness connector C2. Remove Black wire from connector C2 terminal A1. Reconnect harness connector C2. Check voltage between Black wire and ground. If voltage exists, go to next step. If no voltage exists, replace left IP wiring harness junction block. Clear DTC.
  10. Repair short to voltage on Black wire between IP wiring harness junction block Gray connector C2 terminal A1 and BCM Gray connector C2 terminal A4. Clear DTC.
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