Question about 2005 Chevrolet Silverado

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Drivers side power mirror will not move except witht he seat adjustment memory. Passering side works fine . I believe it might be a problem with the switch, how do I replace the switch

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You have to remove door panel

Posted on Nov 13, 2009

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2006 LINCOLN ZEPHYR DRIVERS ELECTRIC SEAT WILL NOT MOVE BACK WHEN KEY IS TURNED OFF


Principles of Operation
The driver seat module (DSM) is on the controller area network (CAN) communication network. To support several vehicle subsystems, the module permits intermodule and diagnostic tool communications.
The DSM controls the memory driver seat and the passenger memory power exterior mirror. This passenger memory power exterior mirror feature allows the driver to program personalized mirror positions. Once the driver stores a mirror position, the driver can recall the setting by pressing the corresponding memory switch or by using a programmed remote keyless entry (RKE) transmitter. For additional information, refer to Section 501-10 .

How to Diagnose Controller Area Network CAN

Driver Seat Module - Memory Seat
The power driver seat, power outside rear view mirrors and power adjustable pedals are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option. The DSM is located on the driver seat track.
This system allows automatic positioning of the driver seat to 2 programmable positions.
  • A power driver seat position can be stored at any time. The driver must move the seat to the desired position using the driver seat switch assembly. The driver must then depress the memory SET switch which activates the memory SET switch light emitting diode (LED). Within 5 seconds (before the LED goes out), the driver must select a memory position. Memory 1 is selected by depressing memory switch 1. Memory 2 is selected by depressing memory switch 2.
  • If no memory switch input is received within the 5-second time limit, the operation is aborted and the memory seat position switch (set switch) LED is turned OFF. This also occurs if one of the following inputs is received during the 5-second programming limit:
    • Driver seat control switch
    • Memory seat position switch (set switch)
    • Power adjustable pedal switch
A programmed seat position can only be recalled when the transmission selector is in PARK or NEUTRAL with the ignition switch in the RUN position. A position may be programmed at any time.

Easy Entry/Easy Exit
The driver power seat easy entry/easy exit feature can be enabled/disabled. Refer to Section 418-01 or the owner's literature.

This may need to be done with a scan tool

Apr 24, 2017 | Lincoln 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

What could cause my drivers side power seat to stop moving forward and backward?


sounds like you might have a switch problem if the memory for seat position works ok. If you have a multimeter that checks for continuity then you could start there at the switch but you would also need a wiring diagram for the seats

Mar 16, 2013 | 2001 Acura MDX

1 Answer

My right mirror on 325 i 2005 doesn't work. When i change my seat position with the memory, the seats goes on but not the mirrors. I can adjust my left mirror but not the rigth one; it never move.


I would safely assume your right mirror may be inoperable period then by your statement you are leaving the switch for the mirrors in the middle during switching correct and during adjustment are switching to R/L mirror on the switch? Mirrors are on the same circuit so both should be operable. Have the mirror checked for operation before heading any further. I Think you will find during this its unplugged from its source of power or inoperable period and needs replaced. Remember to rate my solution and leave testimonial PS please purchase you a Owners Manual for your car you will thank me later.

Oct 09, 2012 | 2005 BMW 325i Automatic

1 Answer

I have a 2005 Jeep Grand Cherokee Limited. My drivers side front power seat does Not stay adjusted. Every time I turn the ignition on the seat moves backward and the back lays down.


The limited edition brings memory setting for mirrors and seats, it recognizes which key are you putting in the ignition and puts the saved setting accordingly to that driver's key. That is the reason your seat keeps moving. You need to reprogram the seat position for that key. Good luck

Dec 30, 2009 | 2005 Jeep Grand Cherokee

1 Answer

Lost power to the driver seat and heat for both front seats


CHECK FUSES AND LOOK UNDER SEAT FOR A PLUGS IN WIRE, ALOT OF MODELS HAVE THE POWER PLUG UNDER THE SEAT, TRY THAT ,ROBERT

Jun 15, 2009 | 2003 Chevrolet Silverado 1500

1 Answer

Side view mirror moves downward and requires readjustment each day.


Hello. On the 2000 ES300 the seat memory buttons also remember the position of the side mirrors at the time of programming. Are you using the seat memory to bring your seat to position each morning? If so youl'll want to reprogram your memory button with the mirrors in the position that you want them to be and it will auto adjust the mirrors when you press the seat meory button.

Jun 10, 2009 | 2000 Lexus ES 300

1 Answer

2005 Buick LeSbare Power Front seats will not move


Check all fuses and relays.  Sounds to me like one is blown.

Feb 27, 2009 | 2000 Buick LeSabre

7 Answers

BMW X5- power wheel, power seats


I have the same problem. Seat and steering column just stopped working. Passenger side normal. No fuse for these components. With so many postings witht he same problem there has to be a defective or worn out source. Please post if you find a solution!

Feb 11, 2009 | 2002 BMW 5 Series

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