Question about 2002 Mercury Cougar

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How to fix a power mirror

Power mirror no longer changes position; is it a fuse, or something more expensive?

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First check that you have voltage to the switch with a 22 volt test lite then trace the wire down to the mirror motor on the mirror press the switch if the test lite glows change the mirror if know lite comes on when you press the switch while probing the window motor wires change the switch

Posted on May 16, 2014

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Posted on Jan 02, 2017

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4 Answers

Brand New. Power heated side mirrors not working. 2002 tahoe


Did you check voltage and ground for the system, before replacing anything?

Apr 12, 2016 | Cars & Trucks

1 Answer

Memory seats adjust on there own as well as mirrors


BCM has nothing to do with this function , MMM - memory mirror module !
Memory Mirror System Operation
The MMM is capable of storing mirror position for 2 different drivers. Mirror position is determined by both horizontal and vertical position sensors in each of the power mirrors. The MMM supplies a reference voltage and a low reference to these sensors and determines mirror position through the horizontal and vertical position signal circuits.
The MMM receives power through the battery supply voltage circuit and the MIR/LOCK fuse and a constant ground source. Any time that battery voltage is disconnected and then connected from the MMM, the MMM will enter the mirror relearn mode. The mirror relearn mode can also be commanded using a scan tool. Refer to Memory Mirror Module Learn for further information.The memory switch receives power through the battery supply voltage circuit and the MIR/LOCK fuse. The MMM upon receipt of a memory switch signal input, a class 2 message from the SIC or a class 2 message from the PCM indicating that the transmission is in park, will then supply battery voltage and ground to the appropriate power mirror motors through the mirror motor control circuits to move the mirrors to the predetermined positions.

DTC B1586, B1596, B1616, or B1626
The mirror horizontal and vertical position sensors are potentiometers. The Memory Mirror Module (MMM) provides these sensors with a 5 volt reference circuit and a low reference circuit. The MMM monitors the horizontal and vertical position sensor signal circuits which change values based on mirror position. These voltage values are used to determine mirror position and can be set into memory. When the MMM receives a memory recall request, the MMM will control the power mirror to the memory position based on the horizontal and vertical position sensor signal values.

Install a scan tool.
Turn ON the ignition, with the engine OFF.
With the scan tool, observe the mirror horizontal and vertical position parameters in the Memory Mirror Module (MMM) data list.
Operate both the left and right mirrors through the full range of movements.
Does the scan tool indicate that the left and right mirror horizontal and vertical position parameters are within the specified range?

Memory Seat System Components
The memory seat system consists of the following components:
• Power seat switch assembly
• Memory recall switch assembly
• Horizontal adjuster motor
• Front vertical adjuster motor
• Rear vertical adjuster motor
• Recline adjuster motor
• Memory seat module
• Memory mirror module
• SEAT 25A circuit breaker
• MIR/LOCK 3A fuse

Your best bet , take it to a qualified repair shop !

May 23, 2017 | 2002 Cadillac Escalade

1 Answer

Trying to find the fuse for the power mirrors and dome light dont know which fuse is which


There are 2 different fuses for what you are talking about. See picture below; the fuse for the power mirrors is in the number 4 position and is a 10 amp fuse. This fuse covers the power mirrors, glove box lamp, map lamps and under the hood lamp. The fuse for your dome lights is in the number 14 position and is also a 10 amp fuse. This fuse not only covers the dome lamps but it also covers the cargo lamp, courtesy lamps and the running board lamps. If you are just having problems with the two things you mentioned then you may be looking at something else like a wiring problem. this all should be in your owners manual if you have one. If you need an owners manual you can email me at csautomotivecars@att.net with your make, model and year and I will be happy to email you a copy at no cost. I hope this helps you and good luck. here is your picture:


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Apr 14, 2011 | 2000 Ford F250 Super Duty Crew Cabs

1 Answer

I have a 2000 ford taurus just changed the power mirror on the drivers side now all of the electric windows stopped working i did not hook up the power mirror due to the connections were different all i...


Your new mirror is possessed park by a church for five minutes. If its a fuse problem, it is the window fuse. Otherwise you probably loosened up the contacts for the door panel controller or did not plug something back up when you installed the possessed mirror. You didnt say if the windows were working before or not

Sep 17, 2010 | Ford Taurus Cars & Trucks

1 Answer

2000 Buick LeSabre where power locks, seats, windows quit working


If all power devices stopped at the same time you may have a bad fuse link. Since it is rare for all the fuses blowing at once and you already checked them. Start at your fuse links before assuming something expensive.

Aug 11, 2009 | 2000 Buick LeSabre

1 Answer

Electric Mirrors do not work (Drivers & Passengers)


There are two power wires to the DDM - drivers door module .Both are orange ,one is powered by a fuse DDM fuse 15amp . in the left I/P fuse block , plus LT DOORS 25amp circuit breaker .
Power Mirror System Components
The power mirror system consists of the following components:
• The driver door module--Class 2 module with integrated switches and requires programming when replaced
• The passenger door module--Class 2 module with integrated switches, requires programming when replaced and also contains the RFA receiver
• The power mirror direction switch--Integrated into DDM and is a 4-position momentary switch that provides a signal input to the DDM for up, down, left/extend and right/retract with a mirror switch activation
• The mirror select switch--Integrated into DDM and is a 3-position switch that allows the operator to select the left or right mirror and also a neutral/fold position
• The left outside power mirror--Contains both the vertical and horizontal mirror motors and is serviced as a complete mirror assembly
• The right outside power mirror--Contains both the vertical and horizontal mirror motors and is serviced as a complete mirror assembly
• The body control module--Class 2 module that requires programming when replaced, serves as the power mode master and is the main message handler
• The DDM 10A fuse--Located in the I/P fuse block and is hot at all times
• The PDM 10A fuse--Located in the I/P fuse block and is hot at all times
• The memory switch, if equipped with memory mirrors--Supplied power by the DDM and provides a voltage signal to the DDM upon a switch activation
• The horizontal and vertical position sensors, if equipped with memory mirrors--Supplied a 5-volt and low reference by the DDM/PDM and provide a variable voltage signal to the DDM/PDM that is proportional to mirror position
• The park neutral position switch, if equipped with memory mirrors--Provides transmission gear selection information to the PCM and is used for memory recall and mirror tilt in reverse functions
• The powertrain control module, if equipped with memory mirrors--Class 2 module that requires programming when replaced and provides Class 2 message indicating transmission gear selection
• The driver information center (DIC), if equipped with memory mirrors--Part of the instrument cluster which is a Class 2 module that requires programming when replaced and is used to personalize the memory recall and mirror tilt in reverse functions
• Fold motor in each of the outside mirrors, if equipped with power fold mirrors--Provides extend and retract movements of the mirror and is serviced as a complete mirror assembly
Each of the outside power mirrors contains 2 reversible motors to provide horizontal and vertical movement of the mirror glass. The vertical motor operates the up and down directions and the horizontal motor operates the left and right directions. If equipped with power folding mirrors, each outside power mirror will contain a reversible fold motor to operate the extend and retract functions. Each of the mirror motors are circuit breaker protected.

Do you know what DTC'S are ? Diagnostic trouble codes
DTC B1544, B1600, or B1605
DTC B1580, B1590, B1610, or B1620
• If DTC B1580 is set by itself, the left horizontal position sensor signal circuit maybe open, shorted to ground or battery
• If DTC B1590 is set by itself, the left vertical position sensor signal circuit maybe open, shorted to ground or battery
• If DTC B1610 is set by itself, the right horizontal position sensor signal circuit maybe open, shorted to ground or battery
• If DTC B1620 is set by itself, the right vertical position sensor signal circuit maybe open, shorted to ground or battery.
• If DTCs B1580 and B1590 are both set, the left 5 volt reference or low reference circuit(s) maybe open, shorted to ground or battery.
• If DTCs B1610 and B1620 are both set, the right 5 volt reference or low reference circuit(s) maybe open, shorted to ground or battery.
Need a factory scan tool to test !
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With the scan tool, observe the mirror horizontal and vertical position parameters in the Driver Door Module (DDM) and Passenger Door Module (PDM) data lists.
Operate both the left and right mirrors through the full range of movements.
Does the scan tool indicate that the left and right mirror horizontal and vertical position parameters are within the specified range?
0.50-4.75 V.
Your best bet , take it to a GMC , Chevy , buick or cadillac dealer

Apr 16, 2017 | 2003 GMC Sierra 2500HD

1 Answer

Radio, Power Door Locks, Power Rear Mirrors, etc Do Not Work


try going to a junk yard. they have tons of different cars to look at and it shouldnt be very expensive

Dec 15, 2008 | 2001 Dodge Stratus

1 Answer

Rear view mirror does not change to night view


I have allot of experience with these mirrors, if your just stopped working it lasted longer than most, many never even made it out of factory warranty, the problem is the mirror not any fuse, the cost of the new unit is around $200.

Nov 22, 2008 | 2002 Buick LeSabre

1 Answer

Power windows and mirrors


yes its a fuse. on the inside of the top of the fuse cover there is a listing. find the accessories or power opt. fuse and change it out.

Oct 01, 2008 | 2002 Dodge Neon

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