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Test 104A - Wiper Switch, Controller & Power Supply

NOTE: Perform TEST 103A  before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION  and WIRING DIAGRAMS  . Drive vehicle to update OTIS and 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 test. If wiper motor operates in low speed mode, go to TEST 104B  . If wiper motor does not operate in low speed mode, go to next step.
  2. Stop wiper motor low speed mode actuation test. Using scan tool, actuate wiper motor high speed test. If wiper motor operates in high speed mode, go to TEST 104B  . If wiper motor does not operate in high speed mode, go to next step.
  3. Stop high speed mode actuation test. Access Power Distribution Center (PDC). PDC is located on left front fender apron. Inspect "E" cartridge fuse in PDC. See Figure . If fuse is blown, go to TEST 104C  . If fuse is okay, go to next step.
  4. Remove "E" cartridge fuse from PDC. Using scan tool in voltmeter mode, measure voltage on "E" cartridge fuse connector (Black wire). If voltage is less than 10 volts, repair open Black wire between "E" cartridge fuse and battery positive terminal. If voltage is more than 10 volts, go to next step.
  5. Install "E" cartridge fuse. Remove intermittent wiper relay (relay No. 6) from PDC. Using scan tool in voltmeter mode, measure voltage on intermittent wiper relay socket terminal "D" (Red/Dark Blue wire). If voltage is 10 volts or less, repair open Red/Dark Blue wire between fuse "E" and ON/OFF wiper relay. If voltage is more than 10 volts, go to next step.
  6. Connect a jumper wire between terminals "B" (Light Green/Black wire) and "D" (Red/Dark Blue wire) on ON/OFF wiper relay socket. If wiper motor operates, go to TEST 104D  . If wiper motor does not operate, go to next step.
  7. Remove HI/LO wiper relay (relay No. 10) from PDC. Ensure jumper wire is still connected between terminals "B" (Light Green/Black wire) and "D" (Red/Dark Blue wire) on ON/OFF wiper relay socket. Using scan tool in voltmeter mode, measure voltage at terminal "B" (Light Green/Black wire) on HI/LO wiper relay socket. If voltage is 10 volts or less, repair open Light Green/Black wire between intermittent wiper relay and HI/LO wiper relay. If voltage is more than 10 volts, go to next step.
  8. Remove jumper wire from intermittent wiper relay terminals. Connect jumper wire between terminal "D" (Red/Yellow wire) on intermittent wiper relay socket and terminal "E" (Brown/White wire) on HI/LO wiper relay socket. If wiper motor does not operate in low speed mode, go to TEST 104E  . If wiper motor operates in low speed mode, replace HI/LO wiper relay.
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