Specialists in Land Rover Parts & Accessories Since 1970 Range RoverRange Rover SportDiscoveryLR3LR4EvoqueFreelanderLR2DefenderSeries

Speak with a Rover Parts Specialist! Call 800.533.2210
Shop by Parts Shop by Vehicle
Over 11,000 parts in stock! Fast Delivery Best Price Guarantee Quality & Service About Us
Atlantic British Ships Fast!

Over 11,000 Parts In Stock!

From floor mats to filters to complete engines, we carry the widest range of parts and accessories for your Land Rover you will find anywhere!

...And the important word here is stock. We simply don't list part #'s that we can buy - we stock them. We operate over 50,000 square feet of warehouse space at two warehouse locations on both the East and West coast.

More info
parts delivery companies

Fast Delivery

We ship same-day on orders placed before 12:00pm eastern time, Monday - Friday (excluding holidays) from both our East and West Coast Warehouses.

We ensure timely processing of your order, quick delivery times and very competitive shipping rates from UPS, FedEx and the US Postal Service

More info
Best Price Guarantee

Our Guarantee On Low Prices!

Atlantic British strives to bring you the BEST QUALITY parts at the BEST PRICE!

Show us a better retail price on the same brand part/item and style advertised on any other website or catalog and...

We'll match it!

Plus, we'll even take an additional 5% Off the matched price

More info
Store Policies

Quality & Service

Since 1970, we've helped more Land Rover owners enhance, modify or repair their vehicle than any other independent parts specialist. Quality products, superior service and a wealth of happy customers are the keys to our success. Getting you what you need, efficiently and effectively - it's what we do.

We appreciate your business - buy with confidence!

Rover Resources Center

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

SIGN UP for Exclusive Offers & Latest Deals

    Atlantic British Ltd.
  • M-Th 8am-7pm (Fri 6pm) Eastern
  • East Coast - Map
  • 6 Enterprise Avenue
  • Clifton Park, NY 12065 - USA
Atlantic British on Facebook Atlantic British on Google+ Atlantic British on YouTube Atlantic British on YouTube

    British Pacific
  • M-F 8:30am-5:30pm Pacific
  • West Coast - Map
  • 8543 Lankershim Blvd
  • Sun Valley, CA 91352 - USA

Please wait while we calculate your shipping cost.....

Parts Question?
Quick Help Options X
Email Your Parts Questions View Store Policies View Shipping Information Tap to Call: 800.533.2210
Sign-Up Now And Enjoy
10% OFF

*Only For New Subscribers & Web Orders

No Thanks
Thank You For Subscribing!Check your inbox for 10% off your first order.
You are already subscribed!This offer is only available to new subscribers.