20 Most Recent 2006 Lincoln Navigator Questions & Answers

It shouldn't do, but that vehicle has so many modules and sensors even for AC and heating. You will need a mobile auto electrician. You should never cut wires, just remove connectors and tape them up. If you cut the wires with the battery connected, the cutting may have shorted something. If you disconnected the battery the security system needs resetting. https://www.google.com/search?q=2006+Lincoln+Navigator.+A%2FC+compressor+wiring ...

When you disconnected the battery you also disconnected all the systems for the immobilizer and security system. It needs resetting.

Question edited for clarity. Question moved to Yes, Model category. It is one of the most complex electrical systems on a modern vehicle. You will only get the full wiring in a service manual or from a subscription with AllData. You can however usually bring up part wiring diagrams. The search query is year make model (the part) wiring diagram Fuse 32 https://fuse-box.info/lincoln/lincoln-navigator-2003-2006-fuses-and-relay 32 15 A* CMS, Transmission solenoids https://www.google.com/search?q=2006+lincoln+navigator+wiring+diagram ..

There is a problem with the catalytic converter. P0420 sets when the downstream o2 sensor is either reading higher than expected or reading simular to the upstream O2 sensor. Either way it is usually the catalytic converter that is the source of the problem and rarely the downstream O2 sensor.

The Catalytic converter is located in the exhaust system under the car. Catalytic converters from either the dealer or a quality direct fit part from a reputable manufacturer are recommended. Cheap cats lead to lots of problems! I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Try this from my previous post.... Have a similar problem... My 2003 Lincoln Navigator was manufactured May 22, 2003 so it's the late model that came with the Intec 5.4 Liter DOHC V-8 (not the Triton engine). I replaced the two front ride height sensors (one for each air strut) and replaced the one rear ride height sensor that controls the ride height for BOTH rear air struts. (Yours may have one ride height sensor for each of the rear air struts.) That solved the problem for a few months during the warm months, until the weather started cooling off. Then back to the same issue. The front passenger air strut started releasing air from the solenoid (air block) making a "hissing sound." Replaced BOTH front air strut solenoids (connected at the top of each air strut). That also resolved the problem for a few days. After going all around the world, I discovered it's the Air Ride Control Module (ASM) that was the problem all along.

It is shown here https://www.justanswer.com/ford-lincoln/7jba2-lincoln-navigator-ultimate-air-suspension-relay.html This image shows what it looks like . More info here https://www.google.com/search?q=2006+Lincoln+Navigator+Active+Air-Ride+suspension+relay+replacement ..

If the rear suspension is not affected its probably a leak or a front height sensor.

The CHT sensor is in the back of the pass side the head 1" from the 02 sensor. Im very sure because i just found it myself. I think i can assess it through the wheel weld. Your Navi was be in limp mode until its replaced. Thats was it sounds bad and no power. good luck

Do not drive this way, have a shop look into this ASAP!

Screen is made of liquid crystals that have to be warm inorder to function. The older they get the more susepitble to cold they area and are slow to react. There is probably a fuction built in to alllow warning of the screen and prevent damage.. Read your manual

Could be coil packs they tend to weak and will misfire

Your air bags are leaking and sounds like your air compressor doesn't work. Suspect new air bags and a new air compressor. And/Or ride height sensor located at the drivers side fender well above the controll arm.

look o in your Manuel for the fuse number it is inside the care fuse box on drivers side under dash by hood release

Shift Interlock System The shift interlock system prevents shifting from PARK unless the brake pedal is depressed. The shift interlock system consists of a shift lock actuator mounted at the base of the steering column or on the floor shifter mechanism. If the ignition switch is in the RUN position, the shift lock actuator is ON unless the brake pedal is depressed. Symptom Chart Symptom Chart Condition Possible Sources Action

• The shift interlock system does not release/lock correctly

• Circuitry.
• Fuse(s):
  • F1.5 (7.5A).
  • F1.27 (5A).
• Shift lock actuator.
• Brake pedal position switch.

• Go To Pinpoint Test D .

PINPOINT TEST D: THE SHIFT INTERLOCK SYSTEM DOES NOT RELEASE/LOCK CORRECTLY Test Step Result / Action to Take D1 TEST THE BRAKE LIGHTS

• Apply brake pedal and view brake lights.
• Do the brake lights illuminate?

Yes GO to D7 . No GO to D2 . D2 TEST FUSE F1.5 (7.5A)

• Check fuse: Fuse F1.5 (7.5A).
• Measure the resistance of fuse F1.5 (7.5A).
• Is the resistance less than 5 ohms?

Yes GO to D4 . No GO to D3 . D3 TEST CIRCUIT 729 (RD/WH) FOR A SHORT TO GROUND

• Disconnect: Brake Pedal Position Switch C278.
• Measure the resistance of circuit 729 (RD/WH) at brake pedal position switch C278-5.
• Is the resistance greater than 10,000 ohms?

Yes GO to D4 . No SERVICE circuit 729 (RD/WH) for short to ground. TEST the system for normal operation. D4 TEST CIRCUIT 729 (RD/WH) FOR AN OPEN

• Measure the resistance between the output side of fuse F1.5 (7.5A) and brake pedal position switch C278-5, circuit 729 (RD/WH).
• Is resistance less than 5 ohms?

Yes GO to D5 . No SERVICE circuit 729 (RD/WH) for open. RETEST the system. D5 TEST THE BRAKE PEDAL POSITION SWITCH

• Measure the resistance of brake pedal position switch (C278) while open (OFF) and closed (ON).
• Is the resistance of the switch greater than 10,000 ohms while OFF and less than 5 ohms while ON?

Yes GO to D6 . No INSTALL a new brake pedal position switch. TEST the system for normal operation. D6 CHECK CIRCUIT 810 (RD/LG) FOR A SHORT TO GROUND

• Disconnect: Shift Lock Actuator C2008.
• Measure the resistance of circuit 810 (RD/LG), shift lock actuator C2096-1.
• Is the resistance greater than 10,000 ohms?

Yes GO to D7 . No SERVICE circuit 810 (RD/LG) for short to ground. TEST the system for normal operation. D7 CHECK CIRCUIT 810 (RD/LG) FOR AN OPEN

• Measure the resistance of circuit 810 (RD/LG) between shift lock actuator C2096-1 and brake pedal position switch C278-6.
• Is the resistance less than 5 ohms?

Yes GO to D8 . No SERVICE circuit 810 (RD/LG) for open. TEST the system for normal operation. D8 TEST FOR VOLTAGE ON CIRCUIT 1003 (GY/YE)

• Measure the voltage at shift lock actuator C2096-2, circuit 1003 (GY/YE).
• Is voltage greater than 10 volts?

Yes GO to D12 . No GO to D9 . D9 TEST FUSE F1.27 (5A)

• Check fuse: Fuse F1.27 (5A).
• Is the resistance less than 5 ohms?

Yes GO to D11 . No GO to D10 . D10 TEST CIRCUIT 1003 (GY/YE) FOR A SHORT TO GROUND

• Measure the resistance at shift lock actuator C2096-2, circuit 1003 (GY/YE).
• Is the resistance greater than 10,000 ohms?

Yes GO to D11 . No SERVICE circuit 1003 (GY/YE) for short to ground. TEST the system for normal operation. D11 TEST CIRCUIT 1003 (GY/YE) FOR AN OPEN

• Measure the resistance of circuit 1003 (GY/YE) between output side of fuse F1.27 (5A) and shift lock actuator C2096-2.
• Is the resistance less than 5 ohms?

Yes GO to D12 . No SERVICE circuit 1003 (GY/YE) for open. TEST the system for normal operation. D12 TEST CIRCUIT 57 (BK) FOR AN OPEN

• Measure the resistance of shift lock actuator C2096-6, circuit 57 (BK).
• Is the resistance less than 5 ohms?

Yes INSTALL a new shift lock actuator. TEST the system for normal operation. No SERVICE circuit 57 (BK) for open. TEST the system for normal operation.