Driver side rear tail light on 1996 impala ss not working What do I need to do?

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The rear defro does not have power going to it with the key off. This means there is somehow a short to power to this switch, if you can remove the switch check for power at the connection. If there is power there is a short, I will send you a schematic of the circuit.

Fast flashing dash signals mean there is a bulb issue-DEFINATELY!

Hi
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you have a bad ground for that tail light, trace the wires and see where the ground wire attatches to the body.

1996 impala ss - odometer light goes on and off - now it wont go on - would go in and out when when dimmer was moved. speedometer and odometer both worked and speeedometer still works - think is just the light?

Tail Lamp Assembly Removal & Installation To Remove:

1. Open the rear compartment.
2. If equipped, disconnect the cargo net.
3. Remove the wingnut and pull back the rear compartment trim panel.
4. Remove the wingnuts from the tail lamp assembly.
5. Remove the tail lamp assembly from the rear body panel.
6. Disconnect the electrical connector from the tail lamp assembly.
7. Remove the tail lamp socket by turning counterclockwise.
8. Remove the side marker lamp socket by turning counterclockwise.

To Install:

1. Install the side marker lamp socket by turning clockwise.
2. Install the tail lamp socket by turning clockwise.
3. Connect the electrical connector to the tail lamp assembly.
4. Position the tail lamp assembly to the rear body panel.
5. Install and secure the wingnuts that attach the tail lamp assembly to the body panel.
6. Position the rear trim panel to the rear compartment. Install and secure the wingnut.
7. If equipped, connect the cargo net.
8. Close the rear compartment.

Open your trunk, You should see big wing nuts or some type of nut holding the the carpet against where the light housing is. take the wings nuts off which is about 3-4 and the light assembly will pull out from the opposite side. The whole housing will come out. It's not just the lens.

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could be a wire crossed from the alarm system or a faulty switch use a test light to determine power to the switch itself and although it may not be the issue check and ensure all the fuses are good ...i do think at this point its a faulty light switch