Test D: A Single Power Window Is Inoperative - LH Rear Window
PINPOINT TEST D: A SINGLE POWER WINDOW IS INOPERATIVE - LH REAR WINDOWD1-D3:
D3-D4:
D4-D5:
D5 Continued:
Normal Operation
Under normal operation, the LH rear window control switch receives power from the LH front window control switch through circuit CPW14 (VT/WH). The LH rear window control switch provides power to the power window motor through circuit CPW21 (BN) and ground through circuit CPW22 (GN/VT) to operate the LH rear window DOWN; and power through circuit CPW22 (GN/VT) and ground through circuit CPW21 (BN) to operate the LH rear window up.
When operating the LH rear window using the LH front window control switch, power is sent to the LH rear window control switch through circuit CPW15 (YE) and ground through circuit CPW16 (BU/OG) to operate the LH rear window DOWN; and power through circuit CPW16 (BU/OG) and ground through circuit CPW15 (YE) to operate the LH rear window up.
Possible Causes
- Open in circuits CPW14 (VT/WH), CPW15 (YE), CPW16 (BU/OG), CPW22 (GN/VT) or CPW21 (BN)
- Inoperative LH front window control switch
- Inoperative LH rear window control switch
- Inoperative LH rear window motor