1989 Plymouth Acclaim

Computer problem
1989 Plymouth Acclaim Front Wheel Drive Automatic 145000 miles

When running trouble codes I get a 37(torque converter unlock solenoid circuit) and 25( AIS motor circuit). The car seems to run ok with no trouble. How do I check the circuits? Thanks.
May 25, 2009.

Hello and thanks for the donation

The torque converter code 37, it only has a few possible causes. They are stuck/sticky valves, solenoid switch valve faulty, valve body leakage or internal solenoid leak. The most common and probable cause is simply a faulty solenoid.

For the code 25, below are the diagnostic flow charts for it.

Images may be too small for you to read, if they are just let me know your email addy and I will send them to you via email so you can then enlarge them.

Let me know if you need further assistance.

May 25, 2009.