Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

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LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Tests AQ

PINPOINT TEST AQ: THE WIPERS ARE INOPERATIVE - FRONT WIPERS


Test AQ1:






Test AQ2-AQ4:






Test AQ4-AQ6:






Test AQ6-AQ8:






Test AQ9:






Normal Operation
12 volts are supplied to the windshield wiper motor from the BEC fuse 54 (30A) on circuit 1671 (RD). 12 volts are also supplied to the windshield wiper motor from the SJB fuse 3 (10A) on circuit 65 (DG) for the run/park, hi/low and washer internal relays. The windshield wiper motor is grounded on circuits 1203 (BK/LB) and 1205 (BK). The windshield wiper motor receives inputs from the multifunction switch circuits 28 (BK/PK), 58 (WH), 61 (YE/RD), 63 (RD), and 950 (WH/BK). The windshield wiper motor module (internal) controls the wiper run/park relay (internal) using internal circuitry to control the windshield wiper motor in conjunction with the wiper HI/LO relay (internal). The multifunction switch is grounded on circuit 1205 (BK).

Possible Causes
- circuit 1203 (BK/LB) open
- circuit 1205 (BK) open
- circuits 65 (DG) open or short to ground
- circuit 1671 (RD) open or short to ground
- windshield wiper motor
- multifunction switch
- BEC
- SJB