Hi.
If we are talking about automatic transmission stuck in park position,
then the problem is the solenoid switch that unlocks the gear shift
lever when brake pedal is pressed. The switch is located behind the
brake pedal.
When the problem is the solenoid the brake lights usually do not work.
A definitive test on the switch is done by jumping the switch contacts to bypass the brake pedal switch.
If the brake pedal switch is not the problem, or if an automatic
transmission is stuck in a different gear, then the first step in
troubleshooting is scanning the ECU (car computer) for codes. If there
is a code P0700 stored, that means that more codes are stored in the
TCM (transmission control module). The TCM is the computer module
controlling the transaxle, and can be tested at any authorized garage.
See:
I get code p0700 after an OBDII scan.
There are many possible reasons for automatic transmission
malfunctions. Most common reasons (that can also cause lock in one
gear) are discussed here:
My car does not shift in second gear.
If you are lock in park, check the pedal switch and brake lights as a first thing.
If you have a manual transmission stuck in any gear, it is usually the
gear shaft broken or detached from the hub. In that case the gear shaft
must be replaced.
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