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2004 Chevrolet Silverado Stereo Wiring Information
Radio Constant 12V+ Wire: Orange Radio Ignition Switched 12V+ Wire: Class 2 Serial Data Radio Ground Wire: Black/White Radio Amplifier Trigger Wire: Pink Left Front Speaker Wire (+): Tan Left Front Speaker Wire (-): Gray Right Front Speaker Wire (+): Light Green Right Front Speaker Wire (-): Dark Green Left Rear Speaker Wire (+): Brown Left Rear Speaker Wire (-): Yellow Right Rear Speaker Wire (+): Dark Blue Right Rear Speaker Wire (-): Light Blue
2004 Chevrolet Silverado Speaker Sizes Audio Front Speakers Size: 6.5? Back Speakers Size: 4? x 6?
The following information is currently not available:
Radio Illumination Dimmer Wire
Radio Antenna Trigger Wire
Front Speakers Size
Rear Speakers Size
Principles of Operation
Interior Lighting
The interior lighting is broken down into two groups: the courtesy lamps and the illuminated entry lamps. Both lighting features interact with the courtesy light arbitrator. The battery saver is also listed in this section.
Courtesy Lighting
The courtesy lamps consist of the dome lamp and/or map lights. The courtesy lamps can be activated by the GEM using the panel dimmer switch, or by any ajar door. The courtesy lamps will shut off when the doors are closed and the illuminated entry feature is not active, or when the vehicle speed is greater than 8 kph (5 mph). The interior lamps will not be reactivated until the vehicle speed is less than 5 kph (3 mph) and a new door open warning lamp switch signal is received. The inputs are:
Open the door all the way and look for the wiring harness going into the door, if you split that wire loom open you will see a bunch of broken wires match them by color code then splice them back together. It's a tight place to work so take your time. I hope this helps. Take Care.
the cluster warning light tells you, the rear door is ajar.
if its not ajar, then the the switch in said door is bad.
easy huh. but it can be the wire shorted, that connects is.
a technician does the checks to find which it is,
DIY use a voltmeter to do the same
what i do is disconnect the switch and the open and short the end wires and see if my display matches, my finger actions.
yes, good, no bad wires
yes, then i test the switch, opps its bad, (ohmmeter tests)
i can also do the same with volts checks faster.
ask , , there are 3 ways to test circuits.
The door ajar switch is the problem and it is inside the door and is sealed, so WD40 will not work, you must remove the door panel and the rear glass run channel and then replace the door ajar micro switch at the rear of the door latch, it has a 2 wire connector to it
1. Could be a broken wire from the door to the a-pillar in the rubber boot. remove the rubber boot, and run the wires for a brake in them ( missing the return for the door latch switch ).
2. Problem with the door latch switch, usually the symptom is the door ajar indicator is always on, and dome lamp won't turn off.
3. A broken wire in the driver's side door sill. This is either towards the front, by the hood latch, or towards the back, where the loom routes up the c-pillar. It will be a single wire spliced to 2 other wires, and it looks like hockey tape is used to cover the splice. Might also have signs of water in the door sill channel.
What's your question ? Tailgate ajar light lit on the instrument cluster ?
The Body Control Module (BCM) monitors the lift glass and the cargo door ajar switches. When the switch closes, the path to ground is completed, and the BCM sends a class 2 message to the instrument cluster to display the CARGO DOOR AJAR message.There are two ajar switches for the rear door ,a left an a right ,the third switch is for the lift glass ajar switch . All three of these switches splice pack SP410 At ground point G410
(Shouldn't have any readings when door(s) and/or window closed.) It's the opposite . switches are open with door closed , G410
In the Body Harness, Behind the RR quarter trim panel near the D-Pillar
It turns out it has nothing to do with rear door. Something about drivers door actuator. NO IT DOESN"T !!!!
The sensors are on all the door latches in all the doors and glass. You have to figure out which one is sticking open for example the drivers door switch and passengers door switch have the same color wires they are grey with a red tracer and black when you close the door both of the wires should be grounded when you open the door the ground should go away and you should have an open to ground. You will have to check all of your door switches the same way execpt for the rear liftgate and glass. The rear liftgate switch must be closed and have grounds on both sides of the wiring at the switch to supply the ground to one side of the switch of the liftgate glass ajar switch. I hope you find your problem.
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