Question about 2003 Volkswagen New Beetle Convertible
Very intermittant problem: Doesn't matter what gear I'm in, could be 1st could be 4th, etc. The car will just "lockup" in whatever gear it is in and won't shift down or up. The P R D ... display will have brackets around each of the letters and be flashing. The only way to get the car "back to normal" is to stop, shut it off, then restart. Once I do this then it runs fine until it decides to "go goofy" on me again. Any ideas or suggestions??
Yes, the car is going into what's called limp mode not to damage the transmission or engine. The car should be checked for electrical faults as when the display flashes it means there's a fault. Could be a problem from a bad ground wire, or I've seen also broken wires near the TCM. Could also be an internal problem in the transmission like a solenoid, but you should definitly have this checked by a certified mechanic.
Posted on Oct 31, 2008
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Posted on Jan 02, 2017
Tips for a great answer:
following are the general instructions on the start of diagnosing any
electronically controlled engine or transmission problem.
engine and the automatic transmission (transmission control is only
for automatics, engine is still computer controlled no matter the
transmission type) in this vehicle are computer controlled and in
most cases when a fault occurs a fault code is stored in the memory
of the computer control module. There are exception to this, such as
the Mass Airflow Meter and fuel pressure problems. What must be done
is to have all the basic testing done such as a scan of the system
for fault codes as well as a check with a live data scanner tool for
engine functions that are not within range of normal, a trained
technician is required to know what is correct and what isn't, then
based on careful diagnostics done from a factory repair manual the
correct part is replaced or the wiring repaired or the computer
replaced (known as the PCM), which is very rarely the problem. Other
basic checks must be done as well such as mechanical problems with
the engine as well as engine state of tune and mileage on the engine.
The transmission can have mechanical issues as well such as no gear
engagement at all or a failed pump or other pressure related
problems. Also engine mechanical problems ca cause many
drive-ability related problem such as rough idle and other symptoms
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