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Is the multifunction switch and the trun signal switch the same

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I depends - it is considered a multifunction switch when the turn signals do multiple things. On Ford vehicles the switch generally controls wipers as well. If your turn signal switch has additional controls - then it is a multifunction switch.

Posted on May 27, 2011

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1 Answer

2007 Lincoln Navigator Turn signal relay location?

It doesn't have one Controlled by smart junction box .
The smart junction box (SJB) monitors the multifunction switch position by sending multiple voltage reference signals to the multifunction switch. When the multifunction switch is in the LH or RH TURN positions, or the hazard lamp switch is pressed, that input signal is routed to ground.
When the SJB receives a request for a turn signal or hazard lamps, the SJB supplies voltage to the appropriate turn lamps.
The timed on/off cycle is determined by the SJB and is set to flash approximately 80 times per minute if both the front and rear turn lamps operate correctly. If an individual turn signal lamp is inoperative, the SJB flashes the remaining turn lamp approximately 160 times per minute.

Mar 28, 2016 | 2007 Lincoln Navigator Ultimate 4x4

1 Answer

Trun switch don't work put in new one still don't work

Turn signal, or trunk ?
Do you have power going to the switch ?

Jun 24, 2013 | 1989 Ford Taurus

1 Answer

1997 chrysler sebring emergency flashers work but turn signals do not

It is caused by either a bad multifunction (turn signal) switch or a bad combination flasher. With this particular vehicle, the flasher is an integral part of the multifunction switch. So, it can only be repaired by replacing the multifunction switch for either case.

Apr 28, 2012 | 1997 Chrysler Sebring

1 Answer

Location of signal relay 2002 lincoln ls

That sounds like the multifunction switch is the fault. The flasher on this vehicle is part of the hazzard switch. It recieves power for turn flashing from the turn signal switch. It is very common for the turnsignal (multifunction) switch to become worn and supply partial power to the flasher (hazzard switch) when not on which results in this fast clicking without any lights on. To be certian without taking out any tools whatsoever the next time the clicking happens jiggle the turn signal switch and see if it goes away or changes at all. If it does you need the turn signal switch. I'm going to include replacement instructions for that below because I am confident that is what you will need. Please ask if you have any further questions.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Disconnect the negative battery cable.
Disable the supplemental inflatable restraints (SIR).


Remove the tilt lever.
Remove the 3 Torx® head screws from the lower column shroud (3).
Remove the upper column shroud (1) tilting up and unsnapping from the lower column shroud hinges (3).
Remove the lower column shroud (3) from the steering column (2).
Remove the Torx® head screws (1) from the multifunction switch (2).
Object Number: 442014 Size: SH

Disconnect the electrical connectors (3) from the multifunction switch (1).
Remove the multifunction switch (1) from the column (2).
Installation Procedure


Position the multifunction switch (1) on the steering column (2).
Connect the electrical connectors to the multifunction switch (1).

Install the Torx® head screw (1) to the multifunction switch (2).

Tighten the screw to 6 N·m (53 lb in).


Install the lower column shrouds (3) to the steering column (2).
Install the upper column shroud (1) to the steering column (2).

Install the Torx® head screws to the lower steering column shroud (3).

Tighten the screws to 2 N·m (18 lb in).
Install the tilt lever.
Enable the SIR system.
Connect the negative battery cable.
Ensure that the multifunction switch functions properly.


Hope helps.

Sep 15, 2011 | Lincoln LS Cars & Trucks

1 Answer

How to change multifunction switch on 04 buick century

STEP BY STEP INSTRUCTION First, any time you work around the steeringcolumn you it is a must to disable the air bag system you will do this my disconnectingthe battery. After you disconnect the battery wait at least 5 minutes before proceeding. 1. Ifyou have tilt remove the tilt actuator arm by firmly pulling straight out. 2. Removethe upper and lower trim covers. 3. Removethe wire harness assembly from the wire harness strap. 4. Disconnect the turn signal andmultifunction switch assembly connector from the SIR system coil connector.This is alongside the steering column there is an 8mm bolt in the center of theconnector that must be removed to disconnect the connector halves. 5. Slide the 2 connectors of the turnsignal and multifunction switch assembly out of the bulkhead connector. With a smallscrewdriver slightly pry between the connectors to release them. 6. Removethe 2 pan head tapping screws and from the turn signal and multifunction switchassembly. 7. Removethe turn signal and multifunction switch assembly from the steering column tilthead assembly. INSTALLATION PROCEDURE 1. Installthe turn signal and multifunction switch assembly onto the steering column tilthead assembly. 2. Screwthe 2 pan head tapping screws and into the turn signal and multifunctionassembly.3. Slidethe 2 connectors of the turn signal and multifunction switch assembly into thebulkhead connector. 4. Connectthe turn signal and multifunction switch assembly connector to the SIR coilconnector. 5. Installthe wire harness assembly (1) into the wire harness strap (2). 6. Installthe upper and lower trim covers. 7. Installtilt actuator arm. 8. Reconnectthe battery.

Mar 01, 2011 | Buick Century Cars & Trucks

1 Answer

Front ligts and long lights is not working

trun signal switch....multifunction switch(same) or headlight switch burnt on back

Mar 03, 2010 | 1993 GMC G2500

2 Answers

Flasher relay is clicking when signals are not in use?

Those are the typical symptoms of a problem with the mutifunction switch. The dielectric grease becomes impregnated with metal flakes, which jumps the contacts inside the switch. The clicking that you hear is the flasher relay located behind the glove compartment. Replacing the switch is not that hard for a DIYer. Some guys have remedied the problem by taking the switch apart, cleaning out the old grease, and applying new grease.
File In Section: Product Recalls
Bulletin No.: 01073A
Date: July, 2002
This bulletin cancels and replaces bulletin 01073, issued April, 2002. All copies of bulletin 01073 should be destroyed.
Due to parts availability, this recall was administered in two phases. This is the second and final phase of the recall. The Parts section has been revised to include parts for this second phase.

Jan 29, 2010 | 2000 GMC Jimmy

2 Answers

Rear turn signals don't work, bulbs are good, front signals blink fast, at first only drivers side didn't work occasionally, now neither side works at all. What's wrong?

are you sure bulbs are good ?? double check bulbs also make sure there is a ground wire from your light fixture is grounded to the body near by this might be causing your problem .. usually if front ones blink fast rear bulbs are bad ... thanks Jerry holler if you need more.

Jan 29, 2009 | 2004 Pontiac Grand Prix

2 Answers

Dimmer switch in turn signal/wiper switch does not work

steering wheel must be removed, besure to disconnect air bag connector at base of column, will need some special tools to remove the lockplate and c-clip

Nov 19, 2008 | 1997 Buick LeSabre

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