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Test 79B - Inoperative Low Washer Fluid Lamp

NOTE: Perform TEST 78A  before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION  . For wiring schematics, see WIRING DIAGRAMS  in this article. Perform TEST VER-1 - VERIFICATION PROCEDURE  after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.
  1. Using scan tool, actuate low washer fluid lamp. If low washer fluid lamp toggles on then off, go to step 6). If low washer fluid lamp does not toggle on then off, go to next step.
  2. Using scan tool, stop low washer fluid lamp actuation. Disconnect message center connector. Connector is located under left side of dash, near instrument cluster connector. Remove and inspect low washer fluid lamp. If lamp is open, replace low washer fluid lamp. If lamp is okay, go to next step.
  3. Ensure ignition switch is in ON position. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Dark Blue/White wire) on message center connector. If voltage is 10 volts or less, repair open Dark Blue/White wire. If voltage is more than 10 volts, go to next step.
  4. Reinstall low washer fluid lamp. Reconnect message center connector. Connect jumper wire between ground and terminal No. 6 (Red wire) on message center connector. If low washer fluid lamp does not illuminate, replace message center. If low washer fluid lamp illuminates, go to next step.
  5. Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Connect jumper wire between ground and terminal No. 6 (Red wire) on BCM Bone connector. Turn ignition on. If low washer fluid lamp does not illuminate, repair open Red wire. If low washer fluid lamp illuminates, replace BCM.
  6. Using scan tool, stop low washer fluid lamp actuation. Disconnect washer fluid level connector from bottom of washer fluid reservoir. Connect jumper wire between washer fluid level connector terminals. Go to next step.
  7. Using scan tool, read washer fluid switch status. If scan tool displays WASH FLUID: LOW, replace washer fluid level switch. If scan tool does not display WASH FLUID: LOW, disconnect jumper wire. Go to next step.
  8. Connect jumper wire between ground and terminal No. 2 (Black/Tan wire) on washer fluid level connector. If scan tool displays WASH FLUID: LOW, repair open Black/Tan wire. If scan tool does not display WASH FLUID: LOW, go to next step.
  9. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Leave BCM connectors connected. Connect jumper wire between ground and terminal No. 17 (Black/Tan wire) on BCM Gray connector. If scan tool displays WASH FLUID: LOW, repair open Black/Tan wire. If scan tool does not display WASH FLUID: LOW, replace BCM.
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