Question about 2002 Cadillac Escalade

1 Answer

Memory seats adjust on there own as well as mirrors

My memory buttons for driver 1 & 2 suddenly stop working along with the ability to operate the power mirror adjustments. however after a about 15 to 20 minutes of the truck running my drivers seat will adjust forward all the way and the side mirrors will start adjusting in all directions continuously. after shutting the truck off you can hear the motor for the mirrors running but the mirrors do not move. I have checked the fuses and everything checks out ok. Could this issue be related to a bad BCM?

Posted by Anonymous on

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  • Cadillac Master
  • 11,022 Answers

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 !

Posted on May 23, 2017

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Posted on Jan 02, 2017

  • 726 Answers

SOURCE: Drivers Power Seat INOP

yes it sorta not the fuse because the fuse will be fore both front ones it will be the switch has bugered up and no not the memory either thats not relevent to the problem

Posted on Jul 29, 2008

SOURCE: Cadillac Escalade Electrical Problem, Heated Seats, Power Mirrors

Dumb question, are you sure you are using the driver one remote? Being a car dealer, some installers will power the unit to certain fuses and some times this can cause issues. He may have told you 30 but most of these guys really don;t know and they are taught once and never really know if it is a problem from car to car. It sounds like a power failure of some sort causing it to reprogram itself to original specs. I went to a NTB for a battery change and I too had some issues and to my luck the guy was a GM tech at one point. So he was able to give me a few tips. Now you may not have this luck but Maybe call a few local shops like this and ask them if the have any GM techs you can run and issue by. You would be suprised where some of these guys have come from. Especially with the layoffs and need to work, anywhere....
Hoepfully this helps.
Jen

Posted on Mar 24, 2009

  • 140 Answers

SOURCE: power windows won't work on 98 el dorado etc

check to see if you have power to the window motor.. if so then the window motor is bad, if not the switch is bad...good luck keith...

Posted on Apr 04, 2009

  • 1608 Answers

SOURCE: 1999 Cadillac Deville Driver side power seat not working

No fuse.These seats are protected with relays and a seat module.The module is under the drivers seat.There are 3 connectors and it would be hard to check all these wires for power to the motors.First look under the seat and make sure none of the connectors came apart under the seat by something that might have been left or rolled under it.The 2 main ones you can check are the connector 2 terminal C and connector 3 terminal A.C is a black wire which is ground and A is a red wire which is the feed power wire.Connector 2 is green and 3 is black.If the ground and power wires are good then you could have a bad drivers seat module.What I would do is go to the salvage yard and find a used module to try.Good luck.

Posted on Dec 07, 2009

Testimonial: "Thanks for your assistance. Great information"

  • 1 Answer

SOURCE: 2003 cts power seat does not travel forward or back

i have a caddilac cts and my passenger seat does not work anyone has an idea on what it can be?

Posted on Nov 20, 2010

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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

Set 1 2 switches? please clarify


See pg. 3-31 in owners manual. Start car in park. Adjust seat, telescoping wheel, and side view mirrors. Pust Mem button and then within 5 sec. push either 1 or 2. That button should light to show memory stored.
From the 2012 Guide (See link)
l"AUTOMATIC DRIVE POSITIONER (if so equipped) Two positions for the driver's seat, steering column and outside mirrors can be stored in the automatic drive positioner memory. Follow these procedures to set the memory positions: • Confirm the shift lever is in the P (PARK) position. • Push the ignition switch to the ON position. • Adjust the driver's seat, steering column and outside mirrors to the desired positions using the adjusting switches for each feature. • Push the SET switch and within 5 seconds, push the memory switch (1 or 2) for at least 1 second. • The indicator light on the memory switch you select will illuminate for approximately 5 seconds. • The driver's seat, steering column and outside mirror positions are now set to your preference. These memorized positions can also be linked to your NISSAN Intelligent Key®. For more information, refer to the "Pre-driving checks and adjustments (section 3)" of your Owner's Manual." https://owners.nissanusa.com/content/techpub/ManualsAndGuides/Murano/2012/2012-Murano-quick-reference-guide.pdf
For added info see whole owners manual.

Dec 28, 2015 | 2006 Nissan Murano

1 Answer

How do you change the driver name and memory for seat and mirror adjustment on a 1997 buick park avenue ultra


I am not sure about changing the name as my 2000 park ave. only indicates driver one or driver two. To reset the memory for seat/ mirror position is rather simple: with the ignition on and the car in park, adjust your seat and mirrors to the desired position. Then press and hold the desired button (driver one or two) until you hear a beep, This is the procedure that works on my 2000 park ave. I hope this helps you.

Jun 21, 2014 | 1997 Buick Park Avenue

1 Answer

I have a 2006 lincoln ls sport and the drivers seat is stuck in one position there is only power to the lumbar


The dirver seat module is attached to the underside of the seat frame. It must be calibrated if replaced. The dealer can use a tool to get failure codes (DTCs) from teh module. 1/2 hour labor charge to extract codes.


Front Seats
The front seats have the following features:
  • Driver memory
  • Power lumbar (optional)
  • Manual lumbar
  • Horizontal, vertical front and rear tilt adjustments (driver)
  • Horizontal, vertical front tilt adjustment (passenger)
  • Power recline
  • Climate controlled (optional)
Adjustment of the seat may be accomplished with the seat control switch located on the side of the seat.
--------------------------------------------------------------------
Principles of Operation
Driver Power Seat - Memory
NOTE: The memory power seat track may stall when operating at 0°C (32°F) or below. Once the vehicle's interior temperature rises above 0°C (32°F), normal operation should return.
The driver power seat is controlled by the driver seat module (DSM). The DSM does not need to be configured, however the driver seat does need to be calibrated when the DSM is installed. The driver seat control switch provides voltage to the DSM when activated. The NEUTRAL position of each driver seat control switch position is a ground state through the seat control switch contacts. A voltage input causes the DSM to power the appropriate motor until the input is removed. Ground is the normal state of the motor circuits through the DSM and is not switched to control the motors. The DSM internally switches the appropriate line from ground to power to adjust the motors.
As the seat is adjusted, the DSM constantly monitors the motor position sensors to record the current seat position. The DSM will remove power from the motor upon termination of the seat control switch input or if the DSM does not see movement from the motor by monitoring the position sensor. The DSM must be calibrated to the seat track it is controlling. For additional information, refer to Seat Calibration. Once the DSM is calibrated to the seat track, it will only allow movement within the calibrated range.
Seat Calibration
The DSM is calibrated using a diagnostic tool. The calibration procedure automatically powers the driver power seat through its full range of motion and records the FULL STOP positions by monitoring the motor position sensors. Once the FULL STOP positions or range of the seat have been recorded, the DSM will only operate within the calibrated range. Any input attempting to drive the seat beyond the calibrated range will be ignored. This calibration is used for all seat control functions including manual switch control and memory recall positioning. During the seat calibration, the DSM may identify a function that is inoperative, such as a position sensor not changing. If the DSM identifies a concern that has a related diagnostic trouble code (DTC), the DSM will set the related DTC at the end of the validation procedure.
The calibration procedure powers the seat track adjustments to the end of their travel, which is determined by the DSM sensing a change of state in the motor position sensors. If there is a concern with the seat track or motor position sensor that limits the travel, the DSM will interpret the stopping point as the end of travel and store the position. The DSM is not able to determine if the seat has moved to its FULL TRAVEL position. It is only capable of monitoring and storing the amount of travel seen by the position sensor changing states.
For additional information on carrying out the power seat calibration procedure, refer to the diagnostic tool operating manual.
Memory Seat
Memory seat positioning can be recalled with the memory switches on the driver door panel or a programmed remote keyless entry transmitter. In either case, the DSM receives a memory recall 1 or 2 command from the driver door module (DDM) over the SCP communication network. The memory recall switches are a hardwired input to the DDM. The DDM also receives the remote keyless entry transmitter signals. Once a valid memory recall command is received from the DDM, the DSM moves the driver seat to the position stored in memory by powering the appropriate motors and monitoring the motor position sensors until the position is reached.
This system allows automatic positioning of the driver seat to 2 programmable positions.
  • To program position 1, move the driver seat to the desired position using the seat control switch. Depress the set button. Within 5 seconds, depress button 1.
  • To program position 2, repeat the previous procedure using the set button and button 2.
  • To recall position 1, depress button 1. To recall position 2, depress button 2.
A position can only be recalled when the transmission selector is in PARK or NEUTRAL. A position may be programmed at any time.
Easy Exit/Easy Entry
The easy exit function moves the seat backwards about 2 inches when the ignition key is removed from the ignition switch. The DSM receives a key out command over the SCP communication network and powers the driver seat rearward. This function will not operate if the seat is less than the travel distance to the end of the track, or the function has been deactivated at the message center driver personality settings. The DSM will also cancel this operation if a valid input command is received, such as the seat control switch or memory recall request.
The DSM will record the current seat position before powering the seat for an easy exit function. This recorded position will be used to return the seat to this position on the easy entry operation. During easy entry operation, the seat is returned to the position previous to the easy exit operation. Easy entry operation will be cancelled if a valid input command is received by the DSM.
Passenger Power Seat
The passenger power seat motors are hardwired to the passenger seat control switch. The circuits are normally at ground through the seat control switch. The individual circuit is switched to power when the specific adjustment position is selected.
-----------------------------------------------------------------------------------------------------------------------------
Visual Inspection Chart Mechanical Electrical
  • Front seat track motors
  • Front seat track binding or obstructed
  • Front seat backrest power recline
  • Lumbar motor
  • Climate controlled seat ducts
  • Driver door module fuse(s):
    • Central junction box (CJB) fuse 7 (5A)
    • CJB fuse 22 (10A)
  • Driver seat module fuse(s):
    • Battery junction box (BJB) fuse 21 (20A)
    • CJB fuse 7 (5A)
  • Passenger power seat BJB fuse 28 (20A)
  • Rear heated seat fuse(s):
    • BJB 11 (20A)
    • CJB fuse 16 (5A)
  • Driver power lumbar BJB fuse 21 (20A)
  • Passenger power lumbar BJB fuse 28 (20A)
  • Driver and passenger climate controlled seat module fuse(s):
    • BJB fuse 26 (30A)
    • CJB fuse 16 (5A)
  • Seat control switch
  • Memory set switch
  • Lumbar seat control switch
  • Seat fan motor
  • Climate controlled seat module
  • Climate controlled seat switch

Jan 14, 2011 | 2001 Lincoln LS

2 Answers

Chrysler town and country Memory Seats


Memory selector is on driver's door, First set driver 1 seat and mirror positions, then press and release memory "s" button. then press and release memory selector "1" button. repeat for # 2 driver substituting memory selector 2 in step 2. hope this will help you

Jan 26, 2010 | 2000 Chrysler Town & Country

1 Answer

Power mirrors, driver power seat, adjustable pedals all don't work... checked fuses and all ok... Any suggestions?


it sounds like the driver seat module. It controls all of these items.
buy used at car-part.com. look on page with * for lowest price.
buy new at discount at tascafordparts.com

  • The memory mirror is inoperative
  • Driver seat module (DSM).
  • Circuitry.
  • CJB fuse 3 (7.5A).
  • Exterior mirror motor.
  • Mirror control switch.


  • The memory seat is inoperative
  • Circuitry.
  • Seat control switch.
  • Seat track.
  • DSM.
  • PDJB Fuse 109 (30A).
  • Power seat motor.


  • Adjustable brake pedal does not operate correctly — does not operate using the adjustable pedal switch
  • Battery junction box (BJB) fuses:
    • 109 (30A).
  • Circuitry.
  • Switch.
  • Adjustable pedal motor.
  • Driver Seat Module (DSM

Oct 02, 2009 | 2003 Ford Expedition

1 Answer

Drivers side mirror resets to up position when door is opened on a 2004 volvo s60


That is probably because the setting for the mirror had been saved in the memory along with the setting for the driver's seat position (if your model has programmable memory for seat position. Set the mirror in the most convenient position and also the driver's seat. Press and hold the MEM button on your driver's seat and press any of the memory numbers. This will store those settings in the memory so that even if someone else alter these setting, the mirror and the seat will be adjusted to the memorised setting when you use the remote to open the car.

Apr 28, 2009 | 2002 Volvo S60

1 Answer

My side mirros dont work


The exterior mirrors:
  • are controlled by power controls on the LH front door trim panel.
  • are of a foldaway design.
  • may contain turn signal indicators.
  • may be heated when the heated back window glass is activated.
  • may have a programmable recall memory option.
Driver Seat Module
The power driver seat and power exterior mirrors are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option.
---------------------------------------------------------------------
Power Exterior Mirror Operation
The power exterior mirrors are controlled by the DSM and are operational all the time, whether the ignition switch is on or off. Using the power exterior mirror switch, the driver can adjust the driver and passenger exterior mirrors four ways.
-----------------------------------------------------
Visual Inspection Chart Mechanical Electrical
  • Exterior mirror(s)
  • Interior mirror
  • Central junction box (CJB) fuse
  • Circuitry
  • Exterior mirror control switch
  • Exterior mirror motor
  • Interior mirror
  • Driver seat module (DSM)
  • Memory set switch


----------------------------------------------------------------------------------


  1. If the vehicle is equipped with memory exterior mirrors and the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel. Select the vehicle to be tested from the diagnostic tool menu.
    • Check to make sure the program card is correctly installed.
    • Check the connections to the vehicle.
    • Check the ignition switch position.
-------------------------------------------------------------------------------------
  • The mirrors are inoperative
  • Circuitry.
  • Central junction box (CJB) fuse.
  • Exterior mirror control switch.


Apr 07, 2009 | 2003 Lincoln Navigator

3 Answers

2005 ford f150 electrical problems


i have a 05 ford f150 supercrew my power adjustable pedals didnt work my mirrors didnt work n the driver seat didnt work i found the problem i had a broken wire coming out of the #3 fuse block it it was orange with a green stripe it has some heat shrink on it i cut the heat shrink tape and the wire was badly corroded i replace the splice with 18 gauge wire and and everything came back on good as new

Mar 26, 2009 | 2005 Ford Expedition

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