Top 20 2002 Lincoln Navigator Questions & Answers

What do you think a EEC relay is ? Electronic Engine Control It is the relay that sends power to the PCM (computer). Try swapping the relay with another one in the fuse box and go from there. But on your vehicle it's not called that , it's PCM power relay . It's located in the under hood fuse / relay box . right side big square ,second row down. PCM power relay .

Sounds like a vacuum leak.

Check the heater hose's going into the fire wall for being hot ! You don't need to know coolant circulation diagram . If the heater hose's are hot , problem is inside , temperature control actuator ! How to Fix Car with No Heat Easy

That could work , You mite be able to test the sensor in question with ohm meter . Test the front one an see what the resistance is ,then check the back one. I don't know what it should be with out looking it up in the service info . You could also check to see if the sensor is getting power from the control module , an see if there is a return input to the module . There are a few DTC'S this able to set ! Air Suspension Control Module Diagnostic Trouble Code (DTC) Index Air Suspension Control Module Diagnostic Trouble Code (DTC) Index DTCs Description Source Action B1318 Battery Voltage Low Air Suspension Control Module Go To Pinpoint Test C . B1342 Air Suspension Control Module Air Suspension Control Module INSTALL a new air suspension control module. REFER to Module-Air Suspension Control . SET the front ride height. REFER to Air Suspension Initialization (Clear DTC B2140). CLEAR the DTCs. REPEAT the self-test. B1485 Brake Pedal Input Circuit Battery Short Air Suspension Control Module RERUN On-Demand Self-Test. MAKE SURE that the brake pedal is not pressed. If DTC is returned again, REPAIR brake pedal position (BPP) circuitry. B1566 Door Ajar Circuit Short to Ground Air Suspension Control Module Go To Pinpoint Test D . B2140 Initialization Failure (Vehicle Ride Height Not Programmed) Air Suspension Control Module REFER to Air Suspension Initialization (Clear DTC B2140). C1439 Vehicle Acceleration EEC-V Circuit Failure Air Suspension Control Module Go To Pinpoint Test E . C1724 Air Suspension Height Sensor Power Circuit Failure Air Suspension Control Module Go To Pinpoint Test F . C1726 Air Suspension Pneumatic Failure Air Suspension Control Module Go To Pinpoint Test G . C1760 Air Suspension Height Sensor High Signal Circuit Failure Air Suspension Control Module Go To Pinpoint Test H . C1770 Air Suspension Vent Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test I . C1790 Air Suspension LR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test J . C1795 Air Suspension RR Air Spring Solenoid Output Circuit Failure Air Suspension Control Module Go To Pinpoint Test K . C1830 Air Suspension Compressor Relay Circuit Failure Air Suspension Control Module Go To Pinpoint Test L . C1917 Steering Electronic Variable Orifice (EEVO) Out-of-Range Fault Air Suspension Control Module Go To Pinpoint Test Q .

• Uneven vehicle height

• Circuitry.
• Rear pneumatic fault.
• Air compressor assembly.
• Air suspension control module.

• Go To Pinpoint Test I .

If it is easy to remove the sensor and the plugs are the same. I would try that. That will tell you if the sensor is bad(the rear will inflate). Or if it is the module. (It won't inflate).

Hi there I am technical mechanical and electronic engineer mechanic it sounds like speed control sin. On it or ignition switch or ignition key and lock! But I would love to help you more but I am going to need more information like what you see on dash or jumping and few more things I need to know I am the guy that mechanics call me and bring it to my shop to bring the cars and trucks when they cant fix the problem or find it whats up with it!!! I fix more electric problem with they more than mechanical I am very good and I will be more than happy to help you email me so that I can be able to!!!! My email address is [email protected] with all the information that you can please and God bless you and I hope to hear from you

mechanical Technical engineer
Brandon Brown

The info I have found is that this series is a radio suppressor for the coil. Could be it was misplaced or that electric lockup solenoid on the Torque converter would interfere with radio. If it has a bracket with a mounting hole it should not matter what grounded location it is bolted to. I would look at one on a car lot to see where the wire runs.

Probably blew out the diode pack in the alternator. Hooking up the jumper cables backwards can burn out one or more fusable liknks in the wiring harness too.

Disconnect the battery cable and leave disconnected for 5 to 10 minutes. Reconnect cable and see if this resets the security system. If light is not flashing, then it should have reset. If when trying to start and the theft light comes on again, have your key checked to see if it has lost its code. If you have a second key, try using it. If this does not work, you may have to have the system flashed at the dealership.

your vent selector is stuck

Go to junk yard

It is on the left side of the transmission ! It part of the transmission range sensor ! http://thumbs3.ebaystatic.com/d/l225/m/ml9_NgCH2zo8acDvZOe4X3Q.jpg

your mode selection is not working

Dead or drained battery? bad connections at battery?

you can find it on google.

I had a similar problem on my 2002 nav and it was a broken vacuum line on the top of the engine under plastic cover that has the engine size on it

When it rains? Sounds like a bad heater core.

It might be the heater core.

THE DOORS IN FRONT HAVE MODULES THAT CONTROL THE OPERATION OF THE ACCESSORIES IN EACH DOOR. THE KEYPAD IS CONTROLLED BY THE VEHICLE SECURITY MODULE

Think you need a dealer for that