VIDEO

Informace

Cadillac

Cadillac P0741

See the basic definition of a diagnostic error. This will help you to clarify the main causes of the fault code. You will understand the program of the control unit
Basic DTC analysis according to OBD2 protocol standard.

OBD2 or On-Board Diagnostics displays messages for basic group styles. More comprehensible code composition has been standard since 2000. The DTC code consists of five characters and its composition will be shown in this video

Insight into programming

The basic unit for the operation of any computer is the bit. Logic 0 and 1 are expressed by a single bit. Diagnostics The error code is composed of 16 bits. The first two bits define one of the four basic circuits. The video will show you a comprehensive overview of the composition of the error report

A diagnostically understandable description of the Diagnostic Trouble Code

Cadillac P0741

Basic error definition

Torque Converter Clutch (TCC) - Stuck Off

Cause of DTC

P0741 No other ECM or TCM DTCs are set. Ignition voltage is 8.6 volts or greater. The engine speed is 400 RPM or more for 5 seconds. The transmission fluid temperature (TFT) is -6.6 to +130°C (+20 to +266°F). The accelerator pedal position signal is valid. The throttle position is greater than 8 percent. The TCM must receive a valid torque signal from the ECM. The engine torque is greater than 50 N·m (36 lb ft). The TCC is commanded ON and PWM duty cycle is greater than 60 percent for 5 seconds. The following 6L80 6L90 gear ratios are achieved in the specified gear range while the TCC is commanded On: The 2nd gear ratio is between 2.19-2.52. The 3rd gear ratio is between 1.42-1.63. The 4th gear ratio is between 1.07-1.23. The 5th gear is between 0.79-0.91. The 6th gear is between 0.62-0.71. The following 6L50 gear ratios are achieved in the specified gear range while the TCC is commanded On: The 2nd gear ratio is between 2.20-2.53. The 3rd gear ratio is between 1.44-1.65. The 4th gear ratio is between 1.07-1.23. The 5th gear is between 0.79-0.91. The 6th gear is between 0.62-0.72.