i have a 2004 mitsubishi galant and it will not change out of third gear automatically or manually
Country: United StatesMake: MitsubishiModel: Galant ESYear: 2004
swapping out relays
Hi,This is indicating that the transmission is in safe mode... meaning electronic control of the transmission has been shut down and it is operating strictly on manual-valve operation (Park/Reverse/Neutral/3RD only).Is the Service Engine Soon light on?Does the "N" light flash?Thanks
service engine light is on, but there is no N light flash. and you are correct on the P,R,N and 3rd only. what do i need to do to fix this
Thanks.Before we can determine the repairs needed, we need to find out why the transmission is shutting down.Ideally we would like to see what codes are stored in the transmission computer, however this is not always an option (most shops can not scan these... a trip to the dealer is often required).For right now though, lets find out what is setting the Service Engine Soon light as it may be related to the transmission issue.Do you have access to a code reader, or live near an auto parts store (Autozone, OReilly, etc) that can give you a free code scan?
P1751 was the code we got....
Thanks... this is definitely a 2004 Galant, not a 2003 or older right?
its a 2004 i bought it brand new, 114,000 miles and this is the first problem
Great, thanks.Do you have a test light or meter, etc?
not on hand, i just need a good starting point
No problem.As you probably already know this code is indicating a malfunction of the transmission control relay... this code will be set if there is no power received from the AT relay.What we were going to do was check to see if we have two valid powers at the relay, however in the absence of a test light we can check the power supply fuses for the relay first.Specifically, in the under hood fuse box we want to inspect fuse #15 (20A), and in the in dash fuse box we want to check fuse #22 (7.5A).Check those two fuses to see if either are popped... if your fuse numbers don't match the amperages I gave you, let me know and I will get a fuse diagram for you (sometimes they change the numbers on the fuse box covers).Alternately, if you would rather just have the test information to review at your leisure, let me know and I will retrieve the diagnostic information for you.
all fuses are good and have never been changed out from the factory, that was the first thing i actually checked. batt was tested along with the alt to ensure they were all putting out.
Thanks.Have you verified if you can feel the AT relay clicking when you turn the key to on? Or instead, have you swapped the relay with an adjacent relay then cleared the code to see if it returns?
i swapped the relay but didnt think to get the code reset, but the one i swapped it with was the a/c and it still worked as advertised
Thanks.The code will need to be reset, it won't go out immediately.The other area of concern is if a transmission code is set, it will need to be cleared as well, which would require a transmission compatible scan tool.... of course if this were the case we would expect to see a flashing N light (as well as additional internal problems).In the absence of a scan tool/code reader, you can unhook the negative battery cable for 30 seconds and it should reset the light. The light should take four start-ups before it returns if the problem is still present. If the problem is internal to the transmission (requiring a transmission scan tool), you will still be stuck in safe mode.
wow that blows... might just sale it as is. but i will get the codes reset and see if the problem goes away. thanks for your help
Well I wouldn't get that extreme. There isn't anything that is going to happen that is going to cost more than replacing the vehicle, unless you have other issues with the car making it make sense to sell it.Try resetting first and see if the safe mode is gone. If it is, start the vehicle 5 times (at least 30 seconds of run time between shut offs) and see if it goes in to safe mode again. If it doesn't, there was an intermittent issue with the relay or the relay itself was not passing enough current.If the problem comes back after 5 starts, there is still an issue with the AT relay circuit and some wire testing/inspection would be necessary.If the transmission remains in safe mode immediately after reconnecting the battery, it is indicating that there is an internal malfunction shutting down the system and the relay code is just a symptom not the cause.In this last instance, you would need to get the car to a shop with a scan tool that can read the transmission to determine what is failed. In most cases it will just be a speed sensor or a solenoid, etc, but there is no way to accurately speculate without having it read with the transmission scan tool.If you would like any additional information or have more questions please don’t hesitate to ask. Please remember that the rating you are asked for is based on the information and clarity given to you, not a reflection on the condition of your vehicle. IF you feel the need to rate one of the lower two negative ratings, please stop and reply to me via the REPLY/CONTINUE CONVERSATION button with the issue you have and I will be happy to continue further and do everything I can to provide you with the information you need to be completely satisfied.