The battery is easy to access from the bottom of the cube.
1. Lay the unit onto a towel with the display facing down.
2. Now having easy access to the bottom of the cube you will note a large base plate is screwed to the four corner feet of the cube by two screws in each corner. Using a Phillips head screwdriver, gently remove these eight screws. Lift the plate away. The four feet will also lift away.
3. Another cover plate will be revealed. Remove the small screws from this cover plate. Lift the plate away.
4. The small battery cover plate will be revealed at the top. Remove the small screws from this cover plate. Lift the plate away.
5. The base of the battery will be revealed. Gently pull the battery out as far as you can to show the two leads connected to the top of the battery.
6. Remove the leads from the battery by sliding the clips off the terminals. Note which lead goes on the terminal marked red.
7. Attach the leads to the new battery ensuring that the correct lead goes on the terminal marked red. Slide the battery back into the recess.
8. Replace all cover plates and feet of the cube.
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3speed trans or 4sp?
only 4sp has OD.
there are 2 things, 1 is overdrive, and other is TCC lookup
Torque converter Clutch lockup,
the TCC relay is in the group of relays, in front of battery
the 0D is inside the tranmission bottom (above the oil pan)
did you use a scan tool and get DTC errors. P07xx? if yes what?
OD lamp flashes funnY?
or did you FEEL OD fail.?
ol2 -- 0v --- 12v-----12v----------- 0v
this is the logic of the shifter connector
if you see 0v on both , its in )D, and of OD is dead (4thgear)
the the tranny is bad.
The battery is inside the case under the logic board.
To get at you will need a very small phillips screwdriver and a very small prie tool (Spectical flat screwdriver will do).
1/ Place your unit screen down on a towel (Prevent scratching the screen)
2/ Remove the small rubber plugs on each corner. There are 4
3/ Remove the 4 small phillips head screws.
4/ Now the tricky bit with the prie tool or small flat head screwdriver. pop it into the sides
gently and pop out the locking tabs, work you way all around (there are two on each side).
Be gentle doing this as the electronics inside here are very delicate.
5/ OK now the back is loose you will need to unplug the speaker from the logic board. Now
the back can be completly removed.
6/ There are 2 screws holding the logic board in place 1 on the left 1 on the right. Remove them.
7/ Now on the side were you put your SD card in apply gental pressure to push out the plasic and at the same time lift out the logic board, remember to lift up the microphone at the top left.
8/ Wala theres your battery it is taped in place so gental pressure will be needed to lift it out
Unplug and replace rebuild is the reverse of stripdown.
Once you put it all back together you will need to charge it for at least 4 hours.
Good luck hope this helped you
greg milton, Hi, Did you get the top cover off of the "1400" battery back-up? How old were the batteries in the unit? My APC 1250 has two 12v 18ah units inside. It's best to replace batteries every 3 to 5 years! 12fixlouie
Defective units, bad seal, or when soemone changes the bulbs, you must always replace the seal. It cannot be reused. Also possible the seal was not installed correctly. If these are new lights, they have a 1 year warranty. HTH
Have you fully charged the battery prior to using in the car?
Using the power from the 12v plug in a vehicle will not "charge" the internal battery, but tends to maintain it somewhat. If the fuse in the end of the 12v connector plug is blown and the battery in the unit is low then this will cause the unit to shut down or fail to fire up.
Please check both, the units battery level and the fuse in the cig lighter plug and the plug that connects the unit to the cig lighter outlet.
Now the second half of your statement:
Nor by my battery
It is either not charged ( AC charger) or it has reached the end of its life which if used correctly is about 2 years. If the life of battery is shortened , then it is by a common practice of misuse. This misuse is to have the unit plugged to the car 12v when staring the engine.
1) it damages the battery life 2) It can and does damage the SIIRF chip, which is responsible for connecting to the satellites
I suggest that if it does not charge over a 10 hours Max period to its full state, then replace the battery immediately to avoid damage to the electronics from battery leak. Thanks for usingFIXYA
These things sit on the dash in blistering heat, and get left in sub-zero weather in the winter. That's extreme for the battery! In addition to the weather, the age of your unit (you didn't mention) may come into play. I have had this happen on two units I have (one at home, one at work). Sounds like the battery is shot. I got two replacements from a company on Ebay. Just type in "c340 replacement battery". If you are handy it's not a big deal. I did not lose my favorites on either unit when I did this.
Another possibility is that the unit is not getting charged. I would check to see if when it is plugged in you get the screen message that that is occurring. You might not be getting a good connection somewhere from the 12v lighter socket to the cradle it sits in. There is a small fuse inside the tip of the plug. Hope some of this helps.
Borrow a multimeter and check the voltage (and current if you can) going to the battery while the unit is turned off. It should still be charging the battery if it's still plugged into the wall socket. If it is not getting about 13 volts, it's not going to charge the battery. If that's the case, then there's something wrong with the transformer, or another part of the charging circuit. The downside is you can't use the unit without the battery being connected. If the unit still works and sounds good even though it's not charging the battery, then just put the battery on a separate charger every week or so.(I use the SPS1 for my computer and love it!)
Good luck with it.