It means that the trasnmission computer has a code in it. You need to read the codes in the trans computer to konw possibole causes.
There can be several things that will an automatic transmission not to work properly. The most common cause is a lack of transmission fluid. Broken shifting linkage can also cause the problem.
It depends on what the problem is. From your question it is obvious you need to have it looked at by a professional.
Could be a transmission problem, assuming an automatic transmission.
It is flashing because the automatic transmission control unit has detected a problem. Seek professional help immediately.
That indicates a problem with your automatic transmission.
The real problem is manually shifting from gear to gear with an automatic transmission. If you are referring to the automatic upshift, there may be a problem with the EGR system or vacuum system.
Most cars this is not a problem, the engines are identical.
Cruise control is controlled by the PCM on all Cobalts regardless of automatic or manual, which communicates with the BCM which controls automatic transmissions. if there is a problem, it is either the button, the wiring, or the PCM itself, or the BCM controlling the transmission
A gearbox problem on a Renault Scenic Automatic could mean something as simple as cleaning the transmission screen. There are many things that could be going on. If the warning lights come on after the vehicle is driven for a while, it could be that the transmission is overheating due to low fluid. A mechanic will have to look at it to determine the extent of the malfunction.
Problem with the transmission ECU. Don't confuse Engine Control Unit (ECU),with the Transmission Control Unit (TCU).The TCU is under the carpet of the passenger seat.Available on Ebay for less than 150.00
My 1997 Dodge Avenger automatic transmission stays in 2nd gear a the time. What seams to be the problem?
P1738 means TCM 2nd Pressure Switch Circuit Malfunction. This is an Automatic Transmission problem. It takes special tools to diagnose this problem. Seek help from a Honda Dealer or independent who has the knowledge and tools to repair this. Stay away from chain transmission repair shops. Stop driving the car until you get this repaired or you may ruin the A/T.