2003 Dodge Cummins ATS Co-Pilot Module Installation Manual
The ATS Co-Pilot module commands the lock-up clutch of the torque converter along with the exhaust brake, if equipped, to stay engaged. This allows for up to 100% of the retarding force to be transferred in 3rd and 4th gear and the transmission oil temperature to remain low because of little to no slippage occurring when the converter is in these selected gears. When the ATS Valve Body is installed, you can use engine braking in the low-speed position of nearly 12 mph in 1st or 2nd gear.
Currently, exhaust brake usage can cause high temperatures in the automatic transmission due to torque converter slippage. And only a small portion of the retarding force is transferred through the fluid coupling of most torque converters. The Co-Pilot has been developed to provide lock-up capability in all gears. NOTE: On Dodge transmissions the ATS Valve Body must be installed to utilize 1st and 2nd gear lock-up capability. The factory computer is programmed to disengage lock-up under many conditions, which inhibits the performance of the transmission. A few of these conditions are:
- Lock-up disengagement at full throttle
- Lock-up disengagement at closed throttle
- Delayed lock-up engagement when accelerating from a stop
- Delayed lock-up engagement before desired engine temperatures are reached
- Lock-up disengagement under high power output
The factory has programmed the stock computer with these features in order to minimize the stress on the factory torque converter. The ATS Co-Pilot module allows the driver to have manual control over the engagement and disengagement of the torque converter clutch.
The variable control panel on the face of the ATS Co-Pilot Module allows the driver to select and view the speed at which the torque converter clutch will engage and disengage. When the round button on the left side of the Co-Pilot face is depressed and the blue light is turned off, the Co-Pilot is disabled. This will allow the factory PCM (Power Train Control Module) to operate the vehicle as it is in stock form. The OFF position is indicated by none of the lights being lit on the face of the box. To activate the unit, depress the round button (ATS Button) on the left side of the face, one of the blue lights on the face will light up, the light also indicates the level the Co-Pilot was set on before it was last shut OFF. This will tell the Co-Pilot to watch for vehicle speed. The minimum speed the Co-Pilot will engage is around 12 mph. The minimum speed of around 12 mph is selected by depressing the down arrow button on the display. This will cause the Co-Pilot to send a signal to the transmission (and exhaust brake if equipped) to lock-up the torque converter at its minimum allowable speed. When the up arrow key is pressed the lock-up speed will increase by about 5 mph. When the down arrow key is pressed the lock-up speed will decrease by about 5 mph. One of the blue lights on the right side of the display will indicate the set speed selected by the driver. When the blue light is at full right the lock-up speed is indicating a maximum set speed around 55 mph. Note: the factory TCC apply signal from the factory PCM will pass through the Co-Pilot if the factory PCM signal is commanded (turned ON) before the Co-Pilot sends the lock-up signal.
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