Test F: A Single Power Window Is Inoperative - LH or RH Rear, MKX
PINPOINT TEST F: A SINGLE POWER WINDOW IS INOPERATIVE - LH OR RH REAR, MKXF1:
F2-F4:
F4-F5:
F5 Continued:
F5-F6:
F7:
F8:
Normal Operation
The LH rear window control switch receives delayed accessory power from the LH front window control switch through circuit CPW14 (VT/WH) when the window lock switch is set to the unlock position, and the delayed accessory relay is active. When the LH rear window is operated in the up direction from the LH rear window control switch, power is sent to the LH rear window motor through circuit CPW21 (BN) and ground through circuit CPW22 (GN/VT). When the LH rear window is operated in the down direction from the LH rear window control switch, power is sent to the LH rear window motor through circuit CPW22 (GN/VT) and ground through circuit CPW21 (BN).
The RH rear window control switch receives delayed accessory power from the LH front window control switch through circuit CPW14 (VT/WH) when the window lock switch is set to the unlock position, and the delayed accessory relay is active. When the RH rear window is operated in the up direction from the RH rear window control switch, power is sent to the RH rear window motor through circuit CPW24 (WH/VT) and ground through circuit CPW23 (GY). When the RH rear window is operated in the down direction from the RH rear window control switch, power is sent to the RH rear window motor through circuit CPW23 (GY) and ground through circuit CPW24 (WH/VT).
Rear Window Operation From LH Front Switch
Switch When the LH rear power window is operated in the up direction from the LH front window control switch, power is sent to the LH rear window control switch through circuit CPW16 (BU/OG), which transfers power to the LH rear window motor through circuit CPW21 (BN). The LH front window control switch provides ground to the LH rear window switch through circuit CPW15 (YE), which transfers ground to the LH rear window motor through circuit CPW22 (GN/VT).
During LH rear power window down operation from the LH front window control switch, power is sent to the LH rear window control switch through circuit CPW15 (YE), which transfers power to the LH rear window motor through circuit CPW22 (GN/VT). The LH front window control switch provides ground to the LH rear window switch through circuit CPW16 (BU/OG), which transfers ground to the LH rear window motor through circuit CPW21 (BN).
When the RH rear power window is operated in the up direction from the LH front window control switch, power is sent to the RH rear window control switch through circuit CPW18 (GY/VT), which transfers power to the RH rear window motor through circuit CPW24 (WH/VT). The LH front window control switch provides ground to the RH rear window switch through circuit CPW17 (BN/GN), which transfers ground to the RH rear window motor through circuit CPW23 (GY).
During RH rear power window down operation from the LH front window control switch, power is sent to the RH rear window control switch through circuit CPW17 (BN/GN), which transfers power to the RH rear window motor through circuit CPW23 (GY). The LH front window control switch provides ground to the RH rear window switch through circuit CPW18 (GY/VT), which transfers ground to the RH rear window motor through circuit CPW24 (WH/VT).
Possible Causes
- Open in circuit CPW14 (VT/WH) or GD133 (BK)
- RH rear window, open in circuit CPW17 (BN/GN), CPW23 (GY), CPW18 (GY/VT) or CPW24 (WH/VT)
- LH rear window, open in circuit CPW15 (YE), CPW22 (GN/VT), CPW16 (BU/OG) or CPW21(BN)
- LH front window switch
- Rear window motor
- Rear window switch