Question about 2002 Chevrolet Suburban

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Replacing 2002 suburban headliner because of vandalism. Having auto electronics shop do this and they are re-installing rear AC control and roof-mounted TV. They are now confused about all the wiring and are asking for a roof headliner wiring harness diagram -- help!

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Hello! The wiring diagrams are to large to include in a comment.
If you give your e-mail I'll send them to you.

Diagrams include rear AC, and rear Sound system (video can be determined from this. Also; Does your vehicle have a sun roof?

Guru.............saailer

Posted on Feb 10, 2010

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Posted on Jan 02, 2017

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I have a 2002 suburban, it has regular heater /ac controls, want climate control.


You need the correct part. The part you have is for a different vehicle. No there is not an adapter you can buy, but you may be able to hard-wire it by cutting and splicing wires. I wouldn't recommend this, unless you live in a remote part of Alaska and have no other means to fix this.

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2006 suburban - liftgate and high tail light quit working and I can't find out which fuse could be bad. All other locks work.


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2002 Chevy Surburban odometer,heat/ac controls/radio/gauges


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1 Answer

Humming sound coming from the small speaker over my head ?


That "speaker looking thing" above the drivers head on the headliner is a part of the climate control system.

Here is the GM bulletin regarding it if you are running in to these issue:

Document ID# 1639237

Subject: Buzz Noise From Headliner Above Driver - keywords ac air aspirator cover fan grille HVAC interior microphone sensor speaker temperature vent vibration #PIT3511 - (03/29/2005)



Models: 2000-05 Cadillac Escalade

2002-05 Chevrolet Avalanche

2000-05 Chevrolet Silverado, Suburban, Tahoe

2000-05 GMC Sierra, Yukon, Yukon XL, Yukon Denali

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.

Condition/Concern:
Dealer or customer may comment that they have a buzz or vibration noise emanating from the headliner in an area that looks like microphone or a speaker.

Recommendation/Instructions:
The plastic escutcheon grill, which is round and about the size of a half dollar and located just above the driver to the left, is the interior ambient temperature sensor. The sensor is used in conjunction with the automatic HVAC (C68). On occasions, this sensor has been known to make a buzz or rattle sound. The sensor uses a small fan to pull air over the sensor. This buzz noise may be intermittent.

Although it may not be possible to alleviate all of the buzz or noise from this sensor, Engineering has found that if the sensor is installed incorrectly that it may bind and cause the fan to make a buzz noise. Remove the sensor and while doing so check for any binding. Reinstall the sensor and re-test. If the noise is still present, the sensor itself may be noisy and require replacement.

Mar 31, 2010 | 2004 Chevrolet Silverado 2500HD

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if you have a sunroof in this you drain tubes are probably plugged. you would need to remove the headliner to check.

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Does the 2002 Dodge caravan have AC in the rear of the van? Or does it have just AC vents in the front of the Van.


If your van has rear AC/Heat there is a roof mounted control for the rear. There is also a control knob on the front panel, that says rear control auto, rear control & rear control off.

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1 Answer

Headliner removal


this is not an easy repair w/o damaging the headliner. There is nothing up there except maybe a roof brace. Check the luggae rack again by trying to move all the peices. One must be loose.
there are 27 steps!
If equipped, remove the overhead console.
  1. Remove the screw and disconnect the electrical connectors
  2. If equipped, remove the electronic compass sensor.
  3. If equipped, disconnect the auto dimming interior mirror connector.
  4. Remove the interior/map reading lamp. For additional information, refer to Section 417-02 .
    • Upon installation, make sure the notch in the headliner aligns with the tab on the interior/map reading lamp bracket.
  5. Disconnect the roof opening panel electrical connector and the wire connector pin-type retainer.
  6. Remove the gimp around the roof opening panel.
    1. Remove the sun visors. For additional information, refer to Sun Visor in this section.
    1. Position aside the door opening weatherstrips
  7. NOTE: Installing the LH side sun visor clip will support front of headliner while working on headliner.
    Install the LH side sun visor retainer clip.
    • Loosely install the screw.
  • Disconnect the electrical connector and the wiring pin-type retainers on the A-pillar.
    1. Release the upper B-pillar trim panel clips and position aside the upper B-pillar trim panel.
    Release the C-pillar trim panel clips and position aside the C-pillar trim panel
    1. Remove the rear upper headliner trim panel.
    2. Remove the D-pillar trim panel.
    Vehicles with rear climate control
    1. Remove the rear auxiliary A/C controls.
      • Disconnect the electrical connectors
    2. Position aside the LH rear quarter trim panel.
    3. Disconnect the electrical connectors.
    4. Remove the pin-type retainers and the upper air duct.
      • Push down on the air duct, tilt the top outward and pull upward to remove the air duct
    5. Remove the lower air duct.
    6. Disconnect the electrical connector located at the C-pillar.
      • Release the wiring harness pin-type retainers.
    7. : To prevent damage to the coat hanger retainer, use a 3/16-inch flat-blade screwdriver for this step. Remove the third row coat hooks.
      • Open the access cover.
      • Insert a screwdriver into the coat hook slot and turn the screwdriver 90 degrees so that it engages in the plastic component slot. This will spread the steal attachment clip wings to allow the plastic component to disengage. The steal clip will stay engaged in the sheet metal.
    8. Remove the rear headliner pin-type retainer.
    9. NOTE: An assistance is required to help support the center of the headliner for the remaining steps.
      1. s2n~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: To prevent damage to the coat hanger retainer, use a 3/16-inch flat-blade screwdriver for this step.
        Remove the second row coat hooks.
        • Open the access cover.
        • Insert a screwdriver into the coat hook slot and turn the screwdriver 90 degrees so that it engages in the plastic component slot. This will spread the steal attachment clip wings to allow the plastic component to disengage. The steal clip will stay engaged in the sheet metal.
      2. Remove the LH side sun visor retainer clip.
        • Open the access cover and remove the screw.
      3. NOTE: Rear seats must be folded down and front seats reclined back for this step.
        Tilt the RH side of the headliner upward and remove the headliner from the rear of the vehicle.
    good luck

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    2 Answers

    Rear Climate control console


    The rear ac controls have the snaps built in onto the unit. When they installed the overhead dvd they prolly stuffed the ac controls up in the headliner. You will have to replace entire headliner to reinstall the panel correctly. Be cheaper to repair dvd unit, and reinstall over the hole. The front controls in that car are the master controls anyway, you dont have to have the rear ones to make the rear ac work.

    Oct 15, 2008 | 2005 Chevrolet Suburban

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