07 H2 lost all power to drivers seat
#21
11-26-2018, 05:46 PM
I just had this issue in my 04 it was the connection block drivers seat rear connection mine looked burnt.
#22
12-29-2018, 01:36 PM
H2 heated seat power seat compass not working - Fix video
Found this H2 heated seat power seat and compass fix video
It worked with me.
#23
02-09-2019, 10:49 AM
Seat power solution
I too have had issues with my driver's seat on my '07 H2. It started out intermittent, then stopped working all together. No seat movement in any axis, no heat on either driver's or passenger's side, yet the door memory buttons still continued to operate the mirrors. All of these functions are controlled by the memory control module which is located underneath the driver's seat. Power for your seat movement functions, and seat heater functions, are provided by a main circuit and branch circuit. The main circuit provides power thru a 50 amp canister type fuse located in your engine compartment fuse box. This fuse is red, and is marked MBEC (Mid Bussed Electrical Center). Consult your owner's manual for a diagram of your engine compartment fuse box to assist in locating this fuse. It should be obvious if this fuse is toast. If not, remove it and use an ohmmeter to check for continuity thru the fuse. If this fuse is blown, you will have no power to any function of your driver's seat, and your passenger door functions will also be dead. Seat heat power is delivered via a branch circuit downstream of the MBEC fuse, and this circuit contains a circuit breaker with thermal reset. If the seat heat circuit draws too much amperage, this breaker will open and allow the circuit wiring to cool to a point at which the breaker will automatically re-energize and restore operation of the heat circuit. This circuit breaker is located adjacent to the driver's left foot, behind a removeable protective plastic cover. This is referred to in your owner's manual as the center instrument panel fuse block. There are metal-cased breakers at the lower left of this fuse block,, marked 25 and 30 (amp). The 25 amp breaker protects the seat heat circuit.
If you have lost heat and seat movement control, yet your door memory buttons will still move your mirrors to their preset position, you don't have any problem with either of these power circuits described above, and you don't have a dead memory module (located underneath your driver's seat.) Mirror movement proves your memory module is ok.
The first item you want to check if you have lost seat control is the connector that feeds all circuits to your driver seat. This connector is located on the floor, under your driver seat, at the left rear corner of the seat. There is a black protective cover over the connector which can be removed for access. This connector is anchored to a bracket and you will need a body plug removal tool or screwdriver to lift it from the bracket. Once you have access, and can see the connector, you should notice this one has two locking mechanisms. One is purple, and was added as additional protection against accidental release. Once this lock is pressed and removed, then you will release the second, traditional style lock. At this point, try and pull the connector apart...….. If the connector does not come apart with normal force, you have found your problem. The reason it will not separate is because it is melted together internally due to the heat generated by the ground wire that passes thru this plug. This ground wire passes all current thru the connector, and is subject to failure due to the great amount of heat generated in this wire. The ground is the 14 gauge black wire, located at the corner of the connector. I found that mine had actually generated enough heat that it opened the ground circuit, causing complete failure of the seat operation.
An easy fix is to just snip the black ground wire at both sides of the connector, and splice in a length of wire that bypasses the connector. Use wire that is equal to or greater than original. I recommend 10 to 12 gauge for this jumper.
After implementing this fix, my seat has been operating flawlessly.
If you have lost heat and seat movement control, yet your door memory buttons will still move your mirrors to their preset position, you don't have any problem with either of these power circuits described above, and you don't have a dead memory module (located underneath your driver's seat.) Mirror movement proves your memory module is ok.
The first item you want to check if you have lost seat control is the connector that feeds all circuits to your driver seat. This connector is located on the floor, under your driver seat, at the left rear corner of the seat. There is a black protective cover over the connector which can be removed for access. This connector is anchored to a bracket and you will need a body plug removal tool or screwdriver to lift it from the bracket. Once you have access, and can see the connector, you should notice this one has two locking mechanisms. One is purple, and was added as additional protection against accidental release. Once this lock is pressed and removed, then you will release the second, traditional style lock. At this point, try and pull the connector apart...….. If the connector does not come apart with normal force, you have found your problem. The reason it will not separate is because it is melted together internally due to the heat generated by the ground wire that passes thru this plug. This ground wire passes all current thru the connector, and is subject to failure due to the great amount of heat generated in this wire. The ground is the 14 gauge black wire, located at the corner of the connector. I found that mine had actually generated enough heat that it opened the ground circuit, causing complete failure of the seat operation.
An easy fix is to just snip the black ground wire at both sides of the connector, and splice in a length of wire that bypasses the connector. Use wire that is equal to or greater than original. I recommend 10 to 12 gauge for this jumper.
After implementing this fix, my seat has been operating flawlessly.
#24
02-09-2019, 10:54 AM
Seat power solution
Correction...….
The seat heat circuit breaker is the 30 amp, not 25 as originally posted.....
The seat heat circuit breaker is the 30 amp, not 25 as originally posted.....
#25
04-23-2020, 08:56 AM
Driver's Seat Stuck forward or Backward Hummer H2
The below works!! It worked the first time!
I always use forums and thought I should repay the favor.
There is 3 fuse boxes in the Hummer H2. One under the hood, on in the driver side door jam and one in the floor board by your left foot.
First off my problem is the driver seat has no power by the memory buttons or by the manual controls. also no heated seats for any of the seats. I first went to the fuse box in the floor board by the drivers left foot. there is a black hex thing you can screw off with your hand and then pull the plastic cover off. there is 2 aluminum looking fuses in the lower left corners one a 25 and one a 30. I pulled both of these for about 10 seconds and then pushed them back in. after doing so my power seats were working again! (if yours doesn't work I would go buy replacements of the aluminum ones) (when doing this be sure you put them back in exactly the same way you took them out and don't flip them cause they would go in the other way but i don't think they are suppose to be flipped)
My heated seats still were not working so I went back to my fuse box in the driver door jam. in the lower left corner there is one 25 aluminum fuse that you need to pull and hold out for 10 seconds then push right back in. After that my heated seats were working again!
I did pull every fuse from all three boxes including the big black square fuses and nothing worked. I only seen a result once I went back and pulled the aluminum looking ones! Also I didn't find any busted fuses anywhere. If it was me I would look for busted fuses first (the plastic colored ones you can see inside) then do what I did.
My problem started after my battery died at a drive in movie and I had to get jumped. (also don't bother seeing lone ranger with johnny depp, it sucked)
There is 3 fuse boxes in the Hummer H2. One under the hood, on in the driver side door jam and one in the floor board by your left foot.
First off my problem is the driver seat has no power by the memory buttons or by the manual controls. also no heated seats for any of the seats. I first went to the fuse box in the floor board by the drivers left foot. there is a black hex thing you can screw off with your hand and then pull the plastic cover off. there is 2 aluminum looking fuses in the lower left corners one a 25 and one a 30. I pulled both of these for about 10 seconds and then pushed them back in. after doing so my power seats were working again! (if yours doesn't work I would go buy replacements of the aluminum ones) (when doing this be sure you put them back in exactly the same way you took them out and don't flip them cause they would go in the other way but i don't think they are suppose to be flipped)
My heated seats still were not working so I went back to my fuse box in the driver door jam. in the lower left corner there is one 25 aluminum fuse that you need to pull and hold out for 10 seconds then push right back in. After that my heated seats were working again!
I did pull every fuse from all three boxes including the big black square fuses and nothing worked. I only seen a result once I went back and pulled the aluminum looking ones! Also I didn't find any busted fuses anywhere. If it was me I would look for busted fuses first (the plastic colored ones you can see inside) then do what I did.
My problem started after my battery died at a drive in movie and I had to get jumped. (also don't bother seeing lone ranger with johnny depp, it sucked)
#26
05-11-2020, 01:22 PM
I too have had issues with my driver's seat on my '07 H2. It started out intermittent, then stopped working all together. No seat movement in any axis, no heat on either driver's or passenger's side, yet the door memory buttons still continued to operate the mirrors. All of these functions are controlled by the memory control module which is located underneath the driver's seat. Power for your seat movement functions, and seat heater functions, are provided by a main circuit and branch circuit. The main circuit provides power thru a 50 amp canister type fuse located in your engine compartment fuse box. This fuse is red, and is marked MBEC (Mid Bussed Electrical Center). Consult your owner's manual for a diagram of your engine compartment fuse box to assist in locating this fuse. It should be obvious if this fuse is toast. If not, remove it and use an ohmmeter to check for continuity thru the fuse. If this fuse is blown, you will have no power to any function of your driver's seat, and your passenger door functions will also be dead. Seat heat power is delivered via a branch circuit downstream of the MBEC fuse, and this circuit contains a circuit breaker with thermal reset. If the seat heat circuit draws too much amperage, this breaker will open and allow the circuit wiring to cool to a point at which the breaker will automatically re-energize and restore operation of the heat circuit. This circuit breaker is located adjacent to the driver's left foot, behind a removeable protective plastic cover. This is referred to in your owner's manual as the center instrument panel fuse block. There are metal-cased breakers at the lower left of this fuse block,, marked 25 and 30 (amp). The 25 amp breaker protects the seat heat circuit.
If you have lost heat and seat movement control, yet your door memory buttons will still move your mirrors to their preset position, you don't have any problem with either of these power circuits described above, and you don't have a dead memory module (located underneath your driver's seat.) Mirror movement proves your memory module is ok.
The first item you want to check if you have lost seat control is the connector that feeds all circuits to your driver seat. This connector is located on the floor, under your driver seat, at the left rear corner of the seat. There is a black protective cover over the connector which can be removed for access. This connector is anchored to a bracket and you will need a body plug removal tool or screwdriver to lift it from the bracket. Once you have access, and can see the connector, you should notice this one has two locking mechanisms. One is purple, and was added as additional protection against accidental release. Once this lock is pressed and removed, then you will release the second, traditional style lock. At this point, try and pull the connector apart...….. If the connector does not come apart with normal force, you have found your problem. The reason it will not separate is because it is melted together internally due to the heat generated by the ground wire that passes thru this plug. This ground wire passes all current thru the connector, and is subject to failure due to the great amount of heat generated in this wire. The ground is the 14 gauge black wire, located at the corner of the connector. I found that mine had actually generated enough heat that it opened the ground circuit, causing complete failure of the seat operation.
An easy fix is to just snip the black ground wire at both sides of the connector, and splice in a length of wire that bypasses the connector. Use wire that is equal to or greater than original. I recommend 10 to 12 gauge for this jumper.
After implementing this fix, my seat has been operating flawlessly.
If you have lost heat and seat movement control, yet your door memory buttons will still move your mirrors to their preset position, you don't have any problem with either of these power circuits described above, and you don't have a dead memory module (located underneath your driver's seat.) Mirror movement proves your memory module is ok.
The first item you want to check if you have lost seat control is the connector that feeds all circuits to your driver seat. This connector is located on the floor, under your driver seat, at the left rear corner of the seat. There is a black protective cover over the connector which can be removed for access. This connector is anchored to a bracket and you will need a body plug removal tool or screwdriver to lift it from the bracket. Once you have access, and can see the connector, you should notice this one has two locking mechanisms. One is purple, and was added as additional protection against accidental release. Once this lock is pressed and removed, then you will release the second, traditional style lock. At this point, try and pull the connector apart...….. If the connector does not come apart with normal force, you have found your problem. The reason it will not separate is because it is melted together internally due to the heat generated by the ground wire that passes thru this plug. This ground wire passes all current thru the connector, and is subject to failure due to the great amount of heat generated in this wire. The ground is the 14 gauge black wire, located at the corner of the connector. I found that mine had actually generated enough heat that it opened the ground circuit, causing complete failure of the seat operation.
An easy fix is to just snip the black ground wire at both sides of the connector, and splice in a length of wire that bypasses the connector. Use wire that is equal to or greater than original. I recommend 10 to 12 gauge for this jumper.
After implementing this fix, my seat has been operating flawlessly.
#27
10-18-2020, 03:11 PM
Hi all,
I have experienced similar challenges that you all have discussed but unable to find the issue. My issue is the driver seat power functions do not work however do respond to the memory buttons and when driven with a Snap-On computer. Also the seat heaters on both seats work intermittently. Dealer said I have a bad power seat module but not sure I am fully on board. Can the module be bad if the seat can be adjusted with the computer? I just want to confirm this is the issue before I run around trying to find a discontinued part. Thank you in advance!
I have experienced similar challenges that you all have discussed but unable to find the issue. My issue is the driver seat power functions do not work however do respond to the memory buttons and when driven with a Snap-On computer. Also the seat heaters on both seats work intermittently. Dealer said I have a bad power seat module but not sure I am fully on board. Can the module be bad if the seat can be adjusted with the computer? I just want to confirm this is the issue before I run around trying to find a discontinued part. Thank you in advance!
#28
10-19-2020, 04:52 AM
Check the connector under the driver seat rear lower left they get moisture and corrode and cause that fault careful unplugging it as it may break wires if heavy corroded.
#29
10-19-2020, 10:49 AM
Thank you Contract_Pilot. I have inspected that connector and all they other connectors...they are in good shape and even put dielectric grease on them.