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Test 106A - Wiper Motor Low Speed Operation

NOTE: Perform TEST 103A  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 wiper motor low speed. If wipers operate in low speed mode, go to step 6). If wipers do not operate in low speed, go to next step.
  2. Remove HI/LO wiper relay (relay No. 10) from Power Distribution Center (PDC). PDC is located on left front fender apron. See Figure . Go to next step.
  3. Connect a jumper wire between terminals "A" (Dark Blue wire) and "E" (Brown/White wire) on high low relay socket. If wiper motor operates in low speed mode, replace HI/LO wiper relay. If wiper motor does not operate in low speed mode, go to next step.
  4. Leave jumper wire connected. Disconnect wiper motor connector. Connector is located on engine compartment firewall, just right of power brake booster. Go to next step.
  5. Using scan tool in voltmeter mode, measure voltage at terminal No. 4 (Brown/White wire) on wiper motor connector. If voltage is 10 volts or less, repair open Brown/White wire. If voltage is more than 10 volts, replace wiper motor.
  6. Stop wiper motor low speed actuation. Gain access to Body Control Module (BCM). BCM is located behind right kick panel. Leave BCM connectors connected. Move wiper switch to low. Go to next step.
  7. Using scan tool in voltmeter mode, backprobe terminal No. 16 (Dark Green/Red wire) on BCM Bone connector. If voltage is more than 6 volts, replace BCM. If voltage is 6 volts or less, replace multifunction switch.
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