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Home >> Lincoln >> 2007 >> Navigator 2WD V8-5.4L >> Repair and Diagnosis >> Windows and Glass >> Windows >> Testing and Inspection >> Pinpoint Tests >> Test C: A Single Power Window Is Inoperative - LF, Navigator
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Test C: A Single Power Window Is Inoperative - LF, Navigator

PINPOINT TEST C: A SINGLE POWER WINDOW IS INOPERATIVE-LF, NAVIGATOR


C1-C2:






C3-C5:






Normal Operation
Under normal operation, the LF power window motor microprocessor receives power at all times through circuit SBP01 (RD) and from the accessory delay relay through circuit CBP41 (BU). Ground is provided at all times through circuit GD143 (BK/VT). The master window control switch provides voltage input to the power window motor microprocessor through circuit CPW10 (YE/VT) to operate the driver window down, and voltage input through circuit CPW11 (BU/GY) to operate the driver window up.

Possible Causes
- Fuse(s)
- Open in circuit SBP01 (RD), CPB41 (BU), CPW11 (BU/GY), CPW10 (YE/VT), CPW29 (VT/GY) or GD143 (BK/VT)
- Window control switch
- Front door window regulator motor
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