20 Most Recent 2006 Mercury Grand Marquis Questions & Answers


I'd have to test when problem is ongoing. When you first turn on key, no crank, you should hear the pump run for a few seconds then stop. For initial prime, the computer doesn't need rpm signal. Engine cranking, the computer needs to see rpm signal or it won't ground the fuel pump relay. W/o rpm signal, no spark at the plugs and no fuel injector pulse. I know your talking about fuel, but, when problem is ongoing, check spark and fuel injector pulse, engine cranking.
Intermittent problems are a pain, have to test when problem is ongoing.
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2006 Mercury... | Answered on Feb 27, 2017


It's either inside the Gloverbox or on the drivers door. If for some reason you don't find it in one of those places ,look down beside the steering wheel where your left knee would hit the dash at.

2006 Mercury... | Answered on Dec 18, 2016


You will need to remove the compass and order a bulb for it once you know the type and wattage.

2006 Mercury... | Answered on Dec 02, 2016


need more information as to which fuse or you can look up in your owners manual

2006 Mercury... | Answered on Nov 24, 2016


Pull the trim cover back on the armrest and inside you will find a T40 or T45 bolt, remove it.

2006 Mercury... | Answered on Oct 06, 2016


Low Speed Windshield Wipers
Low speed is activated when the multifunction switch supplies a specific ground to the speed inputs of the windshield wiper motor module. The windshield wiper motor module then supplies ground to only the windshield wiper run/park relay coil, activating it. When the windshield wiper run/park relay is activated, the deactivated high/low relay connects voltage to the windshield wiper motor low input activating the wiper motor. The windshield wiper motor module continues to operate the windshield wiper motor in the same manner as in high speed, but in low speed with the wiper motor connected to the low speed input.
Washer System
The windshield washer is activated by the internal wiper motor module when it receives a ground signal input from the multifunction switch. Dependent on the switch selection, the internal wiper motor module activates the windshield washer relay (internal) by grounding the respective relay coil. When the relay is activated, it connects voltage to the washer pump while the washer level switch provides ground to the washer pump.
Visual Inspection Chart Mechanical Electrical
  • Windshield washer hoses
  • Wiper linkage
  • Multifunction switch
  • Battery junction box (BJB) fuse 110 (30A)
  • Central junction box (CJB) fuse 13 (10A)
  • Circuitry
  • Windshield wiper motor
Symptom Chart Condition Possible Sources Action
  • The wipers are inoperative
  • Fuse(s)
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test A .
  • The wipers stay on continuously
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test B .
  • The high/low wiper speeds do not operate correctly (intermittent wiper mode OK)
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test C .
  • The intermittent windshield wiper speed does not operate correctly (high/low speeds OK)
  • Circuitry
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test D .
  • The wipers will not park at correct position
  • Pivot arm adjustment
  • Linkage
  • Windshield wiper motor
  • REFER to Windshield Wiper Blade and Pivot Arm Adjustment in this section.
  • The washer pump is inoperative
  • Circuitry
  • Windshield washer pump
  • Multifunction switch
  • Windshield wiper motor
  • Go To Pinpoint Test E .
Do you know how to do electrical testing ?
  • windshield wiper motor
  • PINPOINT TEST C: THE HIGH/LOW WIPER SPEEDS DO NOT OPERATE CORRECTLY (INTERMITTENT WIPER MODE OK) s6a~tr~en~file=ani_caut.gif~gen~ref.gif CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
    Test Step Result / Action to Take C1 CHECK THE MULTIFUNCTION SWITCH
    • Key in OFF position.
    • Disconnect: Multifunction Switch C202b.
    • Carry out the multifunction switch component test. Refer to Wiring Diagrams Cell 149 for schematic and connector information.
    • Does the multifunction switch pass the component test?
    Yes
    GO to C2 .

    No
    INSTALL a new multifunction switch. REFER to Section 211-05 . C2 CHECK CIRCUIT 57 (BK) FOR AN OPEN
    • Measure the resistance between the multifunction switch C202b-5, circuit 57 (BK), harness side and ground.
      s6a~tr~en~file=n0025872.gif~gen~ref.gif
    • Is the resistance less than 5 ohms?
    Yes
    GO to C3 .

    No
    REPAIR the circuit. TEST the system for normal operation. C3 CHECK CIRCUITS 56 (DB/OG), 61 (YE/RD), AND 63 (RD) FOR OPENS
    • Disconnect: Windshield Wiper Motor C125.
    • Using the following table, measure the resistance between the multifunction switch C202b harness side and the windshield wiper motor C125 harness side:

      Multifunction Switch C202b Windshield Wiper Motor C125 pin 6, circuit 56 (DB/OG) pin 10, circuit 56 (DB/OG) pin 1, circuit 61 (YE/RD) pin 1, circuit 61 (YE/RD) pin 4, circuit 63 (RD) pin 9, circuit 63 (RD)

      s6a~tr~en~file=n0025874.gif~gen~ref.gif
    • Are the resistances less than 5 ohms?
    Yes
    GO to C4 .

    No
    REPAIR the circuit. TEST the system for normal operation. C4 CHECK FOR CORRECT WIPER MOTOR OPERATION
    • Disconnect all wiper motor connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all wiper motor connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present?
    Yes
    GO to C5 .

    No
    The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. TEST the system for normal operation. C5 CHECK THE WINDSHIELD WIPER MOTOR
    • Key in OFF position.
    • Disconnect: Windshield Wiper Motor C125.
    • Carry out the windshield wiper motor component test as outlined in this section.
    • Does the windshield wiper motor pass the component test?
    Yes
    The system is operating correctly at this time. The concern may have been caused by binding or incorrect pivot arm adjustment. REFER to Windshield Wiper Blade and Pivot Arm Adjustment in this section. TEST the system for normal operation.

    No
    INSTALL a new windshield wiper motor. REFER to Windshield Wiper Motor in this section.

    2006 Mercury... | Answered on Jul 20, 2016


    B2293 restraint airbags fault
    18 right front/passenger frontal deployment loop (signal stage or stage 1 ) shorted to ground/ voltage out of range
    Take vehicle to repair shop and have it repaired it will not protect you in a crash

    2006 Mercury... | Answered on May 21, 2016


    If the blower motor won't shut off, pull the blower motor relay in under hood fuse box. That should kill it till you find the problem. I don't know if you have automatic hvac or manual hvac?
    Can you check for hvac trouble codes? Some of the national brand auto stores will check codes for free.
    If blower motor wiring connector has both voltage and ground, it will run as long as the battery has voltage.
    I saw two different wiring diagrams on your blower motor, I don't know which one applies?

    2006 Mercury... | Answered on Apr 25, 2016


    Hello Bryan,

    You either have a horrendous vacuum leak... or a muffler or catalytic converter (collapsing) starting to block you exhaust system...

    A decent exhaust shop with code readers ought to be able to tell...

    You would most likely be tripping OBD (on board diagnostic)
    codes around your fuel system, oxygen sensors... and getting poor power and mileage...

    Certainly worth a look...

    I was STRANDED twice: once by a muffler... and again 15 years later by a collapsed catalytic converter.

    Tow truck time.

    Good luck.

    2006 Mercury... | Answered on Mar 23, 2016


    That is the brake pads slapping in the mounting bracket . When the brakes where done did they use new mounting hardware > Did they lube the contact points for the pad slides etc... Your better off taking it to an ASE certified repair shop , not a tire an brake shop . Or the ford dealer .

    2006 Mercury... | Answered on Mar 12, 2016


    Not necessarily could be a bad relay ..

    2006 Mercury... | Answered on Feb 03, 2016


    Mercury Grand Marquis diagnostic code 33 Questions ...

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    2006 Mercury... | Answered on Jan 12, 2016


    There are two slide type retainers that you pull straight up to release the headlight assembly. A retaining ring that will twist loose so you can remove and replace bulb .

    2006 Mercury... | Answered on Dec 06, 2015


    Here is a quick easy fix that works on a majority of different vehicles
    <iframe width="560" height="315" src="https://www.youtube.com/embed/fgUn1TuHu-0" frameborder="0" allowfullscreen></iframe>

    2006 Mercury... | Answered on Oct 25, 2015


    you talking about the socket? check the fuse and ground wire to it?

    or are you talking about those older heating elements with a handle that plug into those "power outlets" is what the new term for those holes are called

    2006 Mercury... | Answered on Mar 16, 2015

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