The 2006 Cadillac CTS has multiple fuse boxes located in different areas of the vehicle. Understanding their locations and the functions of various fuses is crucial for diagnosing and resolving electrical issues. This guide will provide detailed information about the fuse box locations, layouts, and diagrams for your 2006 Cadillac CTS.

Fuse Box Locations

The 2006 Cadillac CTS has three main fuse box locations:

1. Engine Compartment Fuse Block: Located on the passenger side of the engine bay, behind the headlight.

2. Interior Fuse Box (Driver Side): Found under the rear seat on the driver's side.

3. Interior Fuse Box (Passenger Side): Located under the rear seat on the passenger's side.

Engine Compartment Fuse Block

The engine compartment fuse block contains fuses for various engine and electrical components. To access this fuse box:

1. Open the hood

2. Locate the fuse block on the passenger side, behind the headlight

3. Remove the cover to access the fuses

Some key fuses in this location include:

  • MAIN RELAY: Controls the powertrain and ECM
  • STARTER RELAY: Powers the starter solenoid
  • IGN-1 RELAY: Controls the ignition switch (ON position)
  • HORN: Powers the dual horn assembly
  • ECM: Electronic Control Module

Interior Fuse Boxes

To access the interior fuse boxes:

1. Locate the rear seat cushion

2. Find the cushion release at the front of the rear seat

3. Pull the release and lift the cushion up

4. Remove the seat cushion entirely

#### Driver Side Interior Fuse Box

This fuse box contains fuses for various interior components, including:

  • INTERIOR LAMP: Controls hush panel lamps, puddle lamps, and overhead courtesy lamps
  • RIM: Rear Integration Module and ignition switch
  • TRUNK LAMP: Powers the trunk lamp
  • FUEL PUMP MTR: Controls the fuel pump motor

#### Passenger Side Interior Fuse Box

This fuse box includes fuses for:

  • PSGR DR MOD: Right front passenger door module
  • NAV: Navigation system (if equipped)
  • POWER SOUNDER: Powers the alarm system
  • R FRT HTD: Passenger's side heated seat

Fuse Identification

To identify a blown fuse:

1. Locate the suspected fuse using the diagram on the fuse box cover

2. Remove the fuse using the plastic fuse puller tool provided in the fuse box

3. Inspect the fuse - a blown fuse will have a broken metal strip inside

Always replace fuses with ones of the same amperage rating to prevent electrical system damage.

Common Fuse-Related Issues

Some common electrical issues in the 2006 Cadillac CTS that may be related to blown fuses include:

  • Non-functioning power windows
  • Inoperative door locks
  • Malfunctioning interior lights
  • Radio or navigation system not working
  • Heated seats not operating

If you experience any of these issues, checking the corresponding fuse should be your first troubleshooting step.

FAQs About 2006 Cadillac CTS Fuse Box

    • Where is the fuse for power windows located?
      The power window fuses are typically located in the interior fuse box under the rear seat on the driver's side.
    • How do I access the interior fuse boxes?
      Remove the rear seat cushion by pulling the release at the front of the seat and lifting the cushion up.
    • What should I do if I can't find a specific fuse?
      Consult your vehicle's owner manual or a professional mechanic for assistance in locating and identifying specific fuses.

Remember, if you're unsure about handling electrical components or if issues persist after checking fuses, it's best to consult a qualified mechanic or Cadillac dealership for professional assistance.