nothing
Cart Summary

0 items in your cart

Your cart is empty.

Subtotal: $0.00

CHECKOUT NOW

Atlantic British Logo


cart

800-533-2210

M-F 8am - 6pm Eastern or Email Us

Sign in to my account

I forgot my password. Checkout as a Guest

Welcome!

Discovery Fog Lamp Switch

Applies To:

Item: AMR4138
Fits: Discovery I | '94 - '99

Item: YUG102620G
Fits: Discovery Series II | '99 - '02

Fog Lamp Switch Electrical Diagrams

The fog lamp switch (as you may guess) turns the front fog lamps on and off. For both Discovery I and Discovery Series II, these genuine switches are located in the upper left area of the dash.

Discovery I: The Front Fog Lamp switch (AMR4138) for the Discovery I is used to energize a relay. The high current contact of this relay (K230) is what actually makes the connection to turn the fog lamps on. The contacts are fused (F8) with a 10 Amp fuse and are therefore protected against over current. Any attempt to power lamps directly with the Front Fog Lamp switch will damage the contacts because they are not rated for high current. Any auxiliary lamps should be powered with the relay.

Discovery II: The Front Fog Lamp switch (YUG102620G) is a "Momentary Action" switch. It only makes a connection and completes a circuit when it is depressed. The Body Control Unit computer (BCU #D162) continuously polls the state of the various switches and when it senses that one is closed, it takes the appropriate action. In this case, if the front fog lamps are off, it turns them on (conversely, if the lamps are on it turns them off). the BCU does this by energizing a relay (just like with the Discovery I). This relay is R130 and is located in the FUSE BOX - ENGINE COMPARTMENT (P108). Just like the Discovery I, the contacts of this relay are fused. The fuse is a 15 Amp fuse and is designated FUSE 3. Any auxiliary lamps should be powered with the relay.

The diagrams below show the electrical circuit specifications and functionality you will need to know when installing a new fog lamp switch for Discovery I or Discovery Series II.

Discovery Fog Lamp Switch diagram

Complete Product Instructions List Page

Select a Category
Select Vehicle Select Your Vehicle

What Our Customers Are Saying

EXCELLENT
4.9
2,196
Average
Reviews

Pricing was excellent and shipping was very fast

David M.
Grosse Pointe Park, MI

3-4-24

Every time I have ordered parts they show up on time, in perfect condition, and they fit no problems. You also have a great help line in case you have questions about the work …

Peter P.
Marysville, WA

3-3-24

I trust that my order will be reviewed and made certain order corresponds to my particular year and model vehicle. Saves a lot of potential headaches.

Norman W.
San Antonio, TX

3-2-24

Website is very clear and intuitive. I can always find what I am looking for in minutes. The checkout procedure is very clear and simple as well.

Jason M.
Carolina Beach, NC

2-28-24

I have never had a bad experience with your company. Every order is correct and shipped extremely fast.

Ron M.
Kimball, MI

2-22-24

Great prices and service.

Brett N.
San Antonio, TX

2-22-24

Your sales representatives are knowledgeable, helpful, and friendly. I recommend you to other Rover owners on a regular basis.

James G.
Staunton, VA

2-21-24

Prompt service and excellent communication.

Chris S.
Ambler, PA

2-21-24

Great selection of products, easy to use website, friendly staff, helpful videos and resources

Ian G.
McMinnville, OR

2-20-24

I have always had excellent costumer service from my Atlantic British sales person. Very knowledgeable and professional.

Michael S.
Mesa, AZ

2-16-24

Reviews from our Customers...

  • FAST Shipping! Call these Folks they have all the answers to your part installation.

    -Bill M. (Boydton,VA)

    Great customer service, very knowledgeable staff. Everyone I have worked with are Land Rover owners- which is a big help for knowing the vehicles.

    You always have the parts I need at a great price and everyone Ive ever spoken to has a great knowledge of all Land Rovers

    -Keith B. (Blue Ridge,VA)

    Professionalism. My sales rep is a rock star, and I value both his technical expertise and his knowledge of your product line.

    -Alan R. (N. Chelmsford,MA)

  • FAST Shipping! Call these Folks they have all the answers to your part installation.

    -Bill M. (Boydton,VA)

    Great customer service, very knowledgeable staff. Everyone I have worked with are Land Rover owners- which is a big help for knowing the vehicles.

    You always have the parts I need at a great price and everyone Ive ever spoken to has a great knowledge of all Land Rovers

    -Keith B. (Blue Ridge,VA)

    Professionalism. My sales rep is a rock star, and I value both his technical expertise and his knowledge of your product line.

    -Alan R. (N. Chelmsford,MA)

  • You always have the parts I need at a great price and everyone Ive ever spoken to has a great knowledge of all Land Rovers

    -Keith B. (Blue Ridge,VA)

  • Professionalism. My sales rep is a rock star, and I value both his technical expertise and his knowledge of your product line.

    -Alan R. (N. Chelmsford,MA)

SIGN UP for Exclusive Offers and Latest Deals

Ask a Question
Notify me when item number is back in stock!
Choose email or text alert (or both.)