How can I repair the vanity and rear view mirrors?

Interior Lamps
The interior lighting consist of the following 2 groups. This first group includes lamps that may not be dimmed.
• The cargo lamp
• The dome lamps
• The reading lamps
• The vanity mirror lamps

Vanity Mirror Lamps
The inadvertent power courtesy lamps supply voltage circuit of the body control module (BCM) provides battery positive voltage to each vanity mirror lamp. When the vanity mirror cover on the sunshade is opened, a switch closes to provide a ground circuit and the vanity lamp illuminates.

Battery Rundown Protection/Inadvertent Power
The body control module (BCM) inadvertent power courtesy lamps supply voltage circuit provides battery positive voltage to all of the interior reading lamps and both visor vanity mirror lamps. In the event that any of these lamps were to remain illuminated for a period of more than 20 minutes with the ignition switch in the OFF position, the BCM will deactivate the inadvertent power courtesy lamps supply voltage circuit to prevent a total battery discharge condition. Only when the ignition switch is cycled back to the RUN position will the BCM reset the internal timer and reactivate the inadvertent power courtesy lamps supply voltage circuit.
The BCM also utilizes the inadvertent power courtesy lamps supply voltage circuit as a courtesy lamp request signal circuit when none of the lamps in the circuit are illuminated. When a lamp switch is activated, the BCM receives the request for lamp illumination and switches to supplying voltage to the inadvertent power courtesy lamps supply voltage circuit.


Just from reading this ,i wouldn't think this a fuse problem . The BCM has main fuse's for battery voltage supply . The light's your having problems with don't have a separate fuse .

Hooking up a factory or some other professional type scan tool an checking the BCM for DTC'S - diagnostic trouble code's is the first place i would start my diagnostic's .
DTC B1480
The body control module (BCM) supplies battery positive voltage to the reading lamps and both visor vanity mirror lamps. In the event that any of these lamps were to remain illuminated for more than 20 minutes with the ignition switch in the OFF position, the BCM will deactivate the inadvertent power courtesy lamps supply voltage circuit to prevent a total battery discharge condition.

Then follow the diagnostic procedure test's in the service repair manual .
Conditions for Running the DTC
The battery voltage must be between 9.0-16.0 volts.
Conditions for Setting the DTC
• The inadvertent power courtesy lamps supply voltage circuit to the reading lamps and both visor vanity mirror lamps is shorted to ground for more than 1 second.
• There is a loss of the rear fuse block TBC 4 battery supply voltage to the BCM for more than 1 second while one or more of the lamps in the inadvertent power circuit have been activated.

Connector End View Reference: Lighting Systems Connector End Views or Body Control System Connector End Views in Body Control System
1
Did you perform the Lighting System Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Lighting Systems
2
Inspect the TBC 4 fuse in the rear fuse block.
Is the fuse good?
Go to Step 4
Go to Step 3
3
Test the inadvertent power courtesy lamps supply voltage circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9
Go to Step 5
4
Test the TBC 4 battery positive supply voltage circuit at the body wiring harness extension harness connector at the body control module (BCM) for battery voltage. Refer to Circuit Testing in Wiring Systems.
Is battery voltage present?
Go to Step 5
Go to Step 6
5
Inspect for poor connections at the harness connectors of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9
Go to Step 8
6
Inspect for poor connections at the body wiring harness extension harness connectors. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9
Go to Step 7
7
Replace the body wiring harness extension harness to the BCM. Refer to Body Control Module Body Wiring Harness Extension Harness Replacement in Body Control System.
Did you complete the replacement?
Go to Step 9
--
8
Important: Perform the setup procedure for the BCM.
Replace the BCM. Refer to Body Control Module Replacement in Body Control System.
Did you complete the replacement?
Go to Step 9
--
9
Use the scan tool in order to clear the DTCs.
Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?
Go to Step 2
System OK


Fuse Block - Rear
Beneath the left rear seat

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The vanity mirror lights get power from the body control module same as map lights and rear courtesy lights among others.
You may need a wiring diagram to diagnose.

Take it back to the dealership and have it fixed under warranty.

After what it started to act like that? Something was done on the car recently? I'd say there is some mix up with the wires somewhere.

I'm not an expert on the electrical part of the 04 maxima. But I noticed on one of the websites I normally visit that it could be a blown bulb on the passenger side vanity mirror. Here's the quote:

2004 Maxima Tail Lights and Parking Lights fuse blows when interior dome light is on Discovered that my tail lights and parking lights fuse (next to the window washer box which took me a couple of hours to find!) would blow everytime I turned interior dome light on. First I thought it was my Ipod and then maybe moisture was getting in through a small crack in the left rear tail light. Sat in my car last night with a box of fuses and did everything one at a time. It was the turning on of my dome light that caused the fuse to blow. It was instant. I have a blown bulb in the passenger side vanity sun-viser flap. I will change that tomorrow and post an update.


He hasn't updated on the results of changing his vanity mirror bulb. I hope this helps...I hate car electrical problems...So hard to diagnose...

you might want to look under the hood newer cars and trucks have two fuse boxes ck the owners manuel

only light in mine (2007) is by the rear view mirror & the 2 vanity mirror lights, none in back

To all,

I looked at a wiring diagram, traced it back and found a disconnected wire. After I reconnected the wire, the vanity lights started working.

Thanks fpr all your help and support.


Bignuggie