LH Rear Window Operation From LH Front Switch

When the LH rear power window is operated in the down direction from the LH front window control switch, a low current voltage is sent to the LH rear window control switch through circuit CPW15 (YE). The LH rear window control switch integral electronics then supply high current power to the LH rear window motor through CPW21 (BN). Ground is provided to the LH rear window motor from the LH rear window control switch through circuit CPW22 (GN/VT).

When the LH rear power window is operated in the up direction from the LH front window control switch, a low current voltage is sent to the LH rear window control switch through circuit CPW16 (BU/OG). The LH rear window control switch integral electronics then supply high current power to the LH rear window motor through circuit CPW22 (GN/VT). Ground is provided to the LH rear window motor from the LH rear window control switch through circuit CPW21 (BN).

This pinpoint test is intended to diagnose the following: 

• Wiring, terminals or connectors
• LH front window control switch
• LH rear window control switch
• LH rear window motor