Question about 1989 Ford Mustang

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Is the multi function switch hard to replace

Is it hard to replace

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  • brian_gammon Dec 03, 2008

    yes i am talking about the turn signal

  • brian_gammon Dec 03, 2008

    yes i'm talking about the turn signal

  • Steve
    Steve May 11, 2010

    Just to clarify, you are talking about the turn signal switch...correct?

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Here is the procedure from the service manual. This job should take .8 hours for a good technician.:

  1. On models equipped with airbag, disarm airbag system.
  2. On all models, disconnect battery ground cable and isolate with electrical tape.
  3. Remove column cover attaching screws, then the cover.
  4. Disconnect switch electrical connector.
  5. Remove switch attaching screws, then the switch.
  6. Reverse procedure to install.
  7. Reactivate airbag system.

Posted on Dec 03, 2008

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If you've never done it, YES

Posted on Dec 03, 2008

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Wiper issues only work on high but work very slow


with engine running and not.?
front or rear wiper,?????
toss dice, land on front......( 50/50 odds)
it's a network now, no more old style, point to point one wire for every thing on car and a ton of copper to match.
first test all fuses, then scan it.
or it will get expensive fast guessing.
the Switch bank brain under the wiper stalk
sends what you did, on to the LIN bus network,
The switch there does not actually drive lamps.
its just a digital switch, (some are 3 level logic)
The switches on some use a bank of internal resistors to tell the switch bank what you did.

this LIN data stream, is sent to the cluster brain
and also to the TIPM brain.(Allen Turing brains)
the cluster responds for many actions, taken and shows you what you did (EG) for blinkers, flashes the cluster TURN lamp. in same.
Wipers front.
the command for wipers are sent to the TIPM
this device, runs (DRIVES) a huge number of things on the car. (ask for schematics, I have it in pdf forum now,)
Totally Integrated power module. or TIPM
It drives the wiper motor using internal high powered electronics. Direct drive,..
It also senses the wipers location called the sense wire.
The TIPM brain, has complex logic to do all that
it gets many commands to do, (fast ,slow, intermittent wipe) and via TIPM computer memory instructions,
does the job.with pure software. inside.
the wipers can fail for many reasons besides simple mechanical jam or a cut wire.
1: fuse blown to any of those module. check them all if you are SAVVY!
2: TIPM bad,
3: TIPM power supply pin too low, say car battery is 10v ( are head lamps dim,, hummmmmmmmmm)
4: TIPM programming bad. (scrambled brain, needs re-flash)
5: CAN bus or LIN bus, noise, or gross collisions of data on that vital bus. (only scans work here)

IF all fuses are good we scan it .
as always , we check battery voltage first.
with out fail, and listening to the starter motor.
if the starter is dead or weak , we want a strong battery to make all this complex electronics in the car work.
A $10 voltmeter and you know know, battery is above 12.6vdc rested, key on, engine off.
start engine and it goes above, 13.3vdc.
That same tool i can test all fuse. ask.
end comments.

FSM page:
the first page states (QUOTE)
The most reliable, efficient, and accurate means to diagnose the front wiper motor or the electronic controls and communication related to front wiper motor operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
NOTE The front wiper and washer switches are integral to the right multi-function switch. The right multi-function switch is hard wired to the left multi-function switch/Steering Control Module (SCM), which communicates with the ElectroMechanical Instrument Cluster (EMIC)/Cab Compartment Node (CCN) over the Local Interface Network (LIN) data bus.
Before performing any of the following tests, determine whether the other functions of the right and left multi-function switch/SCM are operational. If only the right multi-function switch functions are inoperative, test and repair the right multi-function switch or the jumper harness between the right and left multi-function switches before attempting to repair the Front Wiper and Washer System. If both the right and left multi-function switch/SCM functions are ineffective, diagnose and repair that problem before attempting to repair the Front Wiper and Washer System. end quotes.


what's MORE?
what is missing is a block diagram, here ill make one so we can all learn....


Binary switch stalk. via 7 pin connector.
to:
SCM module (steering control module)
to: (i guess the SCM is the Bank switch brain)
the LIN>CAN network, (the SCM sends digital commands to)
to:

if you scan it and see errors from SCM to TIPM
that needs to be corrected first.
garbled bus data will make the TIPM go nuts.

That ground bad theory fails. because...
the motor uses Ground G112
if that wire fails you get vast numbers of failure from 10 majors. including oxygen sensor 1/2
so it;'s not G112 bad.
the motor has fast winding and low speed.
and a common ground. and a sense wire.

never skip scanning the car, or its all like a dog chasing his tail.
Battery not discharged, (you never said car runs)
fuses all good, (means tested)
scanned and not DTC errors. (i bet yes errors)
there 7 pages for the whole can/lin bus.

but this one is switch banks.
one tricky aspect of this, is the cluster
I think translates this wiper data commands from the LIN bus and then rebroadcasts to to the CAN-BUS. that he TIPM uses.that means.
so error are both buses are important.
this is the LIN-bus, the cluster retransmites the commands do the CAN-BUS. so if cluster is dead
that kills those commands,... out.bound. see?
tricky, i told you.

acb4a86e-6ebf-49e6-b000-a843e7e1804e.jpg

Apr 14, 2016 | 2007 Jeep Compass 2.4

1 Answer

2001 PT Cruiser loss of turn signals and hazard lights after multi-function switch replacement. I replaced the multi-function switch after noticing the fogs lights staying on when not engaged. When the new...


Perhaps you need to start with fog light problem I am guessing we do not know for sure the switch was the cause, if you can remove them from the equation. When checking for shorts make sure you check light bulbs to,
Next, since the multi function switch was the next step in your problem solving, I suggest you remove the new switch check out all wires to the connector, be especially careful to make sure none of wires have pulled out or partially pulled out of the connector. Let me know when you finish this then we can move on to continuity testing.
My best guess is the connector as it is common to both your fog light and multi-function switch,
Above all don't let it get to you, these problems can be frustrating but they also can be interesting and fun especially with the right assistant

Aug 25, 2013 | 2001 Chrysler PT Cruiser

1 Answer

Both headlights quit working simotaneously


There are just (3) possible reasons for this:
(a) your headlight switch has failed, or
(b) your headlight relay has failed.
(c) Fuse 1 (25 Amps) has blown

The headlight relay and fuse 1 are located (I think) in a fuse/relay block under the hood.
The headlight switch is part of the "Multi-function Switch" on the steering column.

Here's how to replace the 2001 PT Cruiser multi-function switch:

archaeology_27.jpg
Multi-Function Switch Removal & Installation
1. Open the hood.
2. Disconnect and isolate the battery negative cable.
3. Remove both upper and lower steering column shrouds.
4. Disconnect both posi-lock harness connectors at the rear of the multi-function switch.
5. Remove multi-function switch mounting screws and remove switch from vehicle.




To Install the new multi-function switch:

Note:
If replacing the multi-function switch, the combination flasher and windshield wiper/washer switch
must be transferred to the new multi-function switch.

1. Remove the two Torx(R) screws retaining the wiper/washer switch, place next to the new
multi-function switch and install two screws.
2. Place switch into place and install mounting screws. Torque multi-function switch to column
retaining screws to 27 inch-lbs. (3 Nm).
3. Connect both posi-lock harness connectors at the rear of the multi-function switch.
4. Install both upper and lower steering column shrouds.
5. Connect the battery negative cable.
6. Close hood.
7. Verify vehicle and system operation.

Mar 15, 2011 | 2001 Chrysler PT Cruiser

1 Answer

2001 jeep grand cherokee laredo, lights come one intermittently, horn came on unexpectedly and wouldn't turn off. How do I fix that?


Lights intermittent can be caused by switch or relay. Try swapping the Low Beam relay with another similar relay (horn relay is a good choice) to see if that resolves it. These relays are in the Junction Block--may be under the hood or in the car but not in the big box by the battery). If this doesn't fix it, the problem is likely the headlamp switch.

Horn coming on is usually caused by a broken switch or stripped wire insulation inside the steering column. You would usually have to take the steering wheel off to fix it, and this requires special tools; however, if the problem happens to be under the steering column shroud, you may be able to fix it without taking off the steering wheel. Take the shroud off and see if you can follow the black/red horn wire. Follow it as far as you can to check for stripped insulation contact with any metal. If you lights switch is bad, you can also change that while you have the shroud off.

Please let me know if you have questions.


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jturcotte_36.gif


Wand Removal & Installataion

  1. Disconnect and isolate the battery negative cable.
  2. Remove the knee blocker from the instrument panel.
  3. Remove the three screws that secure the lower steering column shroud to the upper shroud.
  4. If the vehicle is equipped with a standard non-tilt steering column, loosen the two upper steering column mounting nuts. If the vehicle is equipped with the optional tilt steering column, move the tilt steering column to the fully lowered position.
  5. Remove both the upper and lower shrouds from the steering column.
jturcotte_37.gif

Fig. Steering column shroud removal for the Cherokee

  1. Remove the two screws that secure the multi-function switch water shield and bracket to the top of the steering column.
  2. Remove the one screw located below the left multi-function switch control stalk that secures the multi-function switch water shield and bracket to the steering column.
  3. Gently pull the lower mounting tab of the multi-function switch water shield bracket away from the steering column far enough to clear the screw boss below the left multi-function switch control stalk.
  4. Lift the water shield and bracket with the left multi-function switch off of the left side of the steering column far enough to access the two instrument panel wire harness connectors for the left multi-function switch.
    NOTE If the vehicle is equipped with the optional tilt steering column, lifting gently upward on the tilt release lever will provide additional clearance to ease left multi-function switch removal.
  5. Disconnect the two instrument panel wire harness connectors from the left multi-function switch connector receptacles.
  6. Remove the left multi-function switch and water shield from the steering column as a unit.
  7. Gently and carefully remove the water shield from the switch by pulling it over the hazard warning switch button and the left multi-function switch control stalk.

To install:
  1. Gently and carefully install the water shield onto the switch by pulling it over the hazard warning switch button and the left multi-function switch control stalk.
  2. Position the left multi-function switch and water shield near its mounts on the steering column as a unit.
  3. Reconnect the two instrument panel wire harness connectors to the left multi-function switch connector receptacles.
  4. Position the left multi-function switch onto its mounts on the left side of the steering column.
    NOTE If the vehicle is equipped with the optional tilt steering column, lifting gently upward on the tilt release lever will provide additional clearance to ease left multi-function switch installation.
  5. Position the lower mounting tab of the multi-function switch water shield bracket to the steering column screw boss below the left multi-function switch control stalk.
  6. Install and tighten the one screw located below the left multi-function switch control stalk that secures the multi-function switch water shield and bracket to the steering column.
  7. Tighten the screw to 10 inch lbs. (1.1 Nm).
  8. Install and tighten the two screws that secure the multi-function switch water shield and bracket to the top of the steering column [Tighten the screws to 20 inch lbs. (2.2 Nm)].
  9. Position both the upper and lower shrouds onto the steering column.
  10. Install and tighten the three screws that secure the lower steering column shroud to the upper shroud. Tighten the screws to 18 inch lbs. (2 Nm).
  11. If the vehicle is so equipped, tighten the two nuts that secure the non-tilt steering column upper mounting bracket to the dash panel steering column support bracket studs. Tighten the nuts to 200 inch lbs. 22 Nm).
  12. Reinstall the knee blocker onto the instrument panel.
  13. Reconnect the battery negative cable.

Nov 04, 2010 | 2001 Jeep Cherokee

1 Answer

How replace the multifunction switch


NOTE: Wiring for the multi-function switch is routed under the PRNDL cable.

REMOVAL

  1. Disconnect battery ground cable.
  2. Remove the steering column shroud.
  3. Remove two screws attaching the multi-function switch to the steering column casting. Disengage multi-function switch from casting.
  4. Disconnect the two electrical connections. Do not damage locking tabs.
INSTALLATION

  1. Install the two electrical connectors to full engagement.
  2. Align the multi-function switch mounting holes with the holes in the steering column casting.
  3. Install two self-tapping screws making sure to start the screws in the previously tapped holes. Tighten to 2-3 Nm (18-27 inch lbs.).
  4. For automatic transmission, verify that the PRNDL adjustment is correct.
  5. Install the steering column shroud.
  6. Connect the battery ground cable.
  7. Check the steering column for proper operation.

Oct 27, 2010 | 1997 Ford Aerostar Extended

1 Answer

How to replace the multi function switch on my 2004 optima kia...any demonstration/illustrations will be appreciated


Kia_Sephia_Rio_Spectra_Optima_1998-2006
Multi-Function Switch - Removal & Installation

  1. Disconnect the negative battery cable.
  2. Remove the steering wheel, as outlined earlier in this section.
  3. Remove the steering column upper and lower shrouds.

    29391c9.jpg
    Fig. Remove the steering column upper (A) and lower shrouds (B)
  4. Detach the multi-function switch electrical connector(s).

    0b41ec5.jpg
    Fig. Detach the multi-function switch (A) electrical connector(s)
  5. Remove the 3 bolts, as shown, then remove the multi-function switch assembly (B).
  6. Installation is the reverse of the removal procedure.

    4bfd90f.jpg
    Fig. Remove the 3 bolts, as shown, then remove the multi-function switch assembly (B)

Hope this help (remember rated this post).

Mar 28, 2010 | 2004 Kia Optima

1 Answer

How do I install headlight switch on 95 mercury tracer?


  • Headlamps Inoperative
  • Fuse.
  • Headlamp switch.
  • Headlamp relay.
  • Circuit.
  • Bulbs.

Section 11-05: Steering Column Switches 1996 Escort, Tracer Workshop Manual
REMOVAL AND INSTALLATION Multi-Function Switch
Removal
  1. stf~us~en~file=ani_caut.gif~gen~ref.gif WARNING: THE ELECTRICAL CIRCUIT NECESSARY FOR AIR BAG DEPLOYMENT IS POWERED DIRECTLY FROM THE BATTERY. TO AVOID ACCIDENTAL DEPLOYMENT AND POSSIBLE PERSONAL INJURY, THE BATTERY GROUND CABLE MUST BE DISCONNECTED PRIOR TO SERVICING OR REPLACING ANY AIR BAG SYSTEM COMPONENTS.
    Disconnect the battery ground cable (14301) and wait one minute for the backup power supply to be depleted.
  1. Remove the steering wheel (3600). Refer to Section 11-04 for the removal procedure.
  1. Remove the four screws from the lower steering column shroud (3530).




  1. Remove the ignition switch lock cylinder illumination lamp socket from the lower steering column shroud.
  1. Remove the lower steering column shroud.
  1. Remove the upper steering column shroud.
  1. Disconnect the three multi-function switch electrical connectors.
  1. Remove the multi-function switch screws.
  1. Remove the multi-function switch electrical connectors and the multi-function switch (13K359).

Jan 16, 2009 | 1995 Mercury Tracer

1 Answer

Directional signal only works sometime


If it is an intermittent problem, there are two likely causes. One-the multi-function switch. Two-the flasher is going bad. The first, from my experience, is the most likely, however the second is the less expensive of the two to replace. I would probably go for the multi-function switch. Make sure your brake lights are functioning normally, as your brake light wiring is connected to the multi-function switch.

Nov 12, 2008 | 2000 Ford Expedition

1 Answer

Multifuction switch


This is for a 97 but it may give you some help...

MULTI-FUNCTION WIPER SWITCH
REMOVAL
Tilt the column up and remove the six screws holding the lower column shroud.
Tilt the column down and remove the upper shroud Upper Shroud Removal
Tilt the column up and remove the one steering column tilt lever screw at base of lever. Remove tilt lever and lower shroud.
Using a screwdriver in place of the lever, tilt the column down. Remove the two mounting screws on the switch and remove the switch. Remove the wiring from the hooks and disconnect the two electrical connections on the multi-function switch. Remove the multi-function switch.

Jul 07, 2008 | 2004 Chrysler Sebring

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