2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2644
the apply pressure which allows the TCC control valve to move to the release position. The TCM calculates torque converter slip speed based on
engine speed and transmission input shaft speed.
Conditions for Running the DTC
P0741
* DTCs P0101, P0102, P0103, P0121, P0122, P0123, P0716, P0717, P0722, P0723, P0742, P2762, P2763, or P2764 are not set.
* Ignition voltage is 8.6 volts or greater.
* The engine run time is greater than 5 seconds.
* The transmission fluid temperature (TFT) is 20-130掳C (68-266掳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 Nm (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.
P0742
* DTCs P0101, P0102, P0103, P0121, P0122, P0123, P0716, P0717, P0722, P0723, P0741, P0742, P1751, P2762, P2763, or P2764 are not
set.
* DTC P0742 has not passed this key ON.
* Ignition voltage is between 8.6-18.0 volts.
* The engine run time is greater than 5 seconds.
* The transmission fluid temperature (TFT) is 20-130掳C (68-266掳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 115 Nm (85 lb ft).
* The engine speed is greater than 500 RPM.
* The vehicle speed is greater than 16 km/h (10 mph).
* The gear ratio is between 0.62-1.63.
* The commanded gear is 2nd.
* The TCC is commanded OFF.
Conditions for Setting the DTC
P0741
* The TCC Pressure is greater than 800 Kpa for 5 seconds.
* The TCM detects TCC slip greater than 125 RPM for 5 seconds when the TCC is commanded ON. This must occur 4 times.
P0742
The TCM detects the TCC slip between -20 and +40 RPM for 4 seconds when the TCC is commanded OFF. This must occur 3 times.
Action Taken When the DTC Sets
* DTCs P0741 and P0742 are Type A DTCs.
* Inhibit high gear in Hot Mode.
* The TCM inhibits TCC.
* The TCM freezes transmission adaptive functions.
Conditions for Clearing the DIC/DTC
DTCs P0741 and P0742 are Type A DTCs.
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Wednesday, February 26, 2020
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2644
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