Codes po135 po741 - 1996 Cadillac DeVille

The TCC solenoid is inside the transmission. The circuit connector is on the outside and the most common problem is the wires break that lead to the solenoid in the transmission.

Google your OBD Codes

TYPE: OBD PO741

DO NOT USE ANY VEHICLE WITH TRANS PROBLEMS

Drive ten miles-- you can ruin the transmission & cost
you up to $4,000 to fix

Dit you check the fuse? Jeeps many times ha e problems with Bosch sensors due to the slower heating. Best is to use Denso.

O2 sensor heater fault.

code po122 is for your throttle position sensor. po155 is for your down stream o2 senor .po135 is for your bank 1 sensor 1 o2 sensor. po102 is for your maf sensor

CODE PO741 - TCC SYSTEM STUCK OFF MECHANICAL CONDITIONS, POSSIBLE CAUSES, ATF LEVEL IS TOO LOW OR THE FLUID IS BURNT OR CONTAMINATED, INSPECT TRANSMISSION LINES TO RADIATOR FOR BENDS OR RESTRICTIONS, OIL PRESSURE SCREEN IS CLOGGED OR DEBRIS IN THE OIL PAN,TCC CONTROL VALVE IS STUCK OFF DUE TO SEDIMENT OR BINDING, TCC REGULATOR VALVE IS STUCK OFF DUE TO SEDIMENT OR BINDING, TCC FEED VALVE IS STUCK OFF DUE TO SEDIMENT OR BINDING, TCC SOLENOID VALVE O - RING OR TURBINE SHAFT SEALS LEAKING OR CUT.

code po741= Bad tcc solenoid, Good news is its a $30 part.....The bad news is you need to drop the transmission to fix it works about to about 13 hours of labor so around $2000 dollars hope this helps you out

P0741 Torque Converter Clutch Circuit Performance or Stuck Off

This means that the lock up Torque Converter is not locking up as it should at highway speed or 35 mph and up (I learned that figure in school for Oldsmobile automobiles).

It can lead to less fuel efficiency.

Hope this helps.

P1860 and PO741 are both transmission codes.The 1860 is a "Long shift and Max adapt".What this means is,it is a slip code.The vehicle computer monitors all the time how long each shift takes to complete,in 1/10ths of seconds.If the shifts take too long to complete,the computer sees this and sets this code.When the code sets,the computer raises main line pressure inside the trans to compensate,and then the trans shifts hard or engages harder.The 0741 is also trans,it is a torque convertor lockup code.Either way,your trans is going to need a rebuild to solve these issues.Good luck.