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Washer Fluid Level Indicator Malfunctions

  1. If BFC diagnostic system check was performed, go to next step. If BFC diagnostic system check was not performed, go to BFC DIAGNOSTIC SYSTEM CHECK  .
  2. Disconnect washer fluid level switch connector. Using scan tool, read BFC inputs. If washer fluid level reads OK, go to next step. If washer fluid level does not read OK, go to step 4).
  3. Replace washer fluid level switch. See appropriate I - SYSTEMS & COMPONENTS article in ENGINE PERFORMANCE section.
  4. Back out BFC 24-pin Pink connector C3, terminal A6 (Black/White wire). Using scan tool, read BFC inputs. If washer fluid level reads OK, go to next step. If washer fluid level does not read OK, go to step 13).
  5. Check for a poor connection at BFC connector C3, terminal A6 (Black/White wire). If a poor connection exists, go to next step. If connection is okay, go to step 7).
  6. Repair poor connection at BFC connector C3, terminal A6 (Black/White wire).
  7. Check for a poor connection at Black/White wire terminal of washer fluid level switch. If a poor connection exists, go to next step. If connection is okay, go to step 9).
  8. Repair poor connection at Black/White wire terminal of washer fluid level switch.
  9. Using DVOM, check resistance between washer fluid level switch harness connector "A" (Black/White wire) and ground. If resistance is less than infinite, go to next step. If resistance is not less than infinite, go to step 11).
  10. Repair short to ground in Black/White wire between BFC and washer fluid level switch.
  11. Using DVOM, check resistance between washer fluid level switch harness connector "A" (Black/White wire) and BFC connector C3, terminal A6 (Black/White wire). If resistance is not 0-2 ohms, go to next step. If resistance is 0-2 ohms, system is operating properly.
  12. Repair open in Black/White wire between BFC and washer fluid level switch.
  13. Replace BFC. See REMOVAL & INSTALLATION  .
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