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Test D: A Single Power Window Is Inoperative - RF, Expedition

PINPOINT TEST D: A SINGLE POWER WINDOW IS INOPERATIVE-RF, EXPEDITION


D1-D2:






D2-D3:






D4-D5:






D5:






Normal Operation
Under normal operation, the RF window control switch receives power from the master window control switch through circuit CPW30 (GY/YE). The RF window control switch provides power to the power window motor through circuit CPW20 (WH/OG) and ground through circuit CPW19 (VT) to operate the passenger front window up, and power through circuit CPW19 (VT) and ground through circuit CPW20 (WH/OG) to operate the passenger front window down.

When operating the passenger front window using the master window control switch, power is sent to the RF window control switch through circuit CPW12 (GN/OG) and ground through circuit CPW13 (BN/YE) to operate the passenger front window up, and power through circuit CPW13 (BN/YE) and ground through circuit CPW12 (GN/OG) to operate the passenger front window down.

Possible Causes
- Open in circuit CPW30 (GY/YE), CPW19 (VT) or CPW20 (WH/OG)
- Open or short to ground in circuit CPW13 (BN/YE) or CPW12 (GN/OG)
- Window control switch
- Front door window regulator motor