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bill, jeep master tech
Category: Jeep
Satisfied Customers: 1553
Experience:  25 years with jeep drivability and electrical expert
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Have a 2004 grand cherokee with the normal electric problem-no

Customer Question

have a 2004 grand cherokee with the normal electric problem-no power to drivers door. windows,locks mirrors dome light not working,passengerside windows not working,locks will work on passengerside if you lock from passengerside. checked fuse 28-good checked wires in drivers door none broke. have repaired black wire in all doors.
Submitted: 5 months ago.
Category: Jeep
Expert:  bill replied 5 months ago.
what's your skill level can you use a test lamp and a digital volt/ohm meter, you will need to remove the front door panels for some basic testing on the door switches(modules, the door switches are actually computers that control the window,lock and several other functions)
Customer: replied 5 months ago.
yes i can use a volt/ohm meter- i have also replaced the switch assy in the drivers door
Expert:  bill replied 5 months ago.
well first thing we need to do is grab a test lamp and see if the module actually has power (NO METER HERE we need to see if there is any current flowing not just voltage) then grab your meter and check the BLACK wire and see what the resistance to ground is the power wire is ORANGE with a WHITE stripe and heavy gauge for the drivers and passenger door modules teh ground is heavy black as well on both you need to check BOTH sides, while the drivers is the most common to give problems the passenger side can have wiring problems also
Expert:  bill replied 5 months ago.
following up to see how your doing or if you solved your problem
Customer: replied 5 months ago.
can't find the door module in the door- orange and white wire changes after it goes through door connector. Harness goes to control buttons in door,4 wires split out, 2 to window motor and 2 to door lock. test light shows power orange and white wire, ground black wire between A pillar and door.
Customer: replied 5 months ago.
also used test light at harness connector at door arm button panel-no power
Expert:  bill replied 5 months ago.
the door module is the switch bank it has 2 connectors a white one with heavy gauge wires and a smaller black one the one you need to test is the WHITE onewith no power at the module I would go back and look very carefully at the door wiring as it passes through the body to the door, it's very possible the harness has been changed and the wire colors MAY not match anymore, I disconnect the harness at the door and pull that convoluted covering off completely, NO but connectors here and you NEED to be sure there is actually enough wire I extend each broken wire at least 1 inch and usually 2 or is a link to the module connector pin out for BOTH left FRONT and right FRONT doors

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