When driving the car more than 30 km/h, the car will kick meduim hard , and the engine light will come on, and then it will be stuck in 3rd gear, but it only does it whatever speed it is. codes p0723 and p1529 are what I got with the obd2 reader. What can I do to fix the problem.
Code p1529 refers to transmission control module-communication===causes --wiring-TCM and ECM
code p0723 refers to output shaft speed sensor (OSS)-circuit intermittent==causes--wiring--poor connection--OSS sensor --ECM /TCM
n both codes the TCM shows and the wiring may be a loose /dirty connection at the gear box level
SOURCE: hyundai santa fe 2001
FC P1529 means "Check TCM"
SOURCE: 2002 hyundai accent codes p1529 and p0734
P1529 means nothing more than the TCM (transmission control module) has
requested that the ECM (engine control module) turn on the check engine
lamp.
P0734 basically indicates that your transmission is slipping.
You need to take this car to an authorized repair center for hyundai cars. Replacing the filter and fluid on the transmission might save this transmission but I would be willing to bet that a total transmission rebuild is in order.
Good Luck
SOURCE: vehicle wont change up into gear reverse gear not
P0734 - 4th gear incorrect ratio. P1529 Malfunction Indicator Lamp Request. Problem is in the transmission.
Take/Tow your vehicle to an authorized Hyundai dealership and pay the diagnostic fee... they will tell you exactly what the problem is and the cost of parts/labor to fix it... at least this way you'll know what the problem is and what's required to fix it.
SOURCE: 2002 hyundai accent.transmission works great
Hi
Well two of the tranny codes ; P0734 and PO732 indicate gear 2,3,4 ratio incorrect. This can be caused by poor readings at the input and output speed sensors or pulse generators. The P1709 code is in reference to the kickdown servo switch.
Replacing the pulse generator set and TCM reprogramming( as per TSB) may solve your problem, otherwise you have a major component failure in the transmission unit. I would get some line pressures at the transmission checked first.
Sounds like the transmission is in fail safe mode, this happens when there is a transmission fault, you only have two gears 2nd and reverse.
Hope this helps - Steve
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