INSTALLATION INSTRUCTIONS 3
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BROWN (OVERDRIVE CANCEL): (FORD ONLY) Toggles Overdrive function on/off with momentary
connection to 12v(+) or ground(-).
BLACK (TPS GROUND REFERENCE): Connect to ground reference on throttle position sensor (TPS).
GRAY (CALIBRATION SELECT): Switch to ground to select Calibration B. In race applications
Calibration B can be used for aggressive shift characteristics. In 4x4 applications Calibration
B is used as a shift point compensation using the Transfer Ratio (INITIAL SETUP) setting to
compensate for transfer case reduction ratio in AUTOMATIC shift mode. Connect to a switched
ground to activate.
BLUE (MANUAL BUMP UP / MANUAL MODE SELECT): Momentarily switch to ground for 3 seconds
to activate MANUAL MODE. Once in MANUAL MODE, momentarily switch to ground to
UPSHIFT.
GREEN (TCC LOCK): Switch to ground to lock Torque Converter Clutch in 2nd-4th gear regardless
of vehicle speed.
TAN (SPEED OUT): Speedometer signal output (12v square wave; 20,000 pulses per mile).
RED (TCC UNLOCK): Switch to 12v to unlock Torque Converter Clutch. Normally connected to brake
pedal switch to unlock TCC when brakes are applied.
Note: This function will prevent the TCC from locking under any operating condition while
activated with 12v.
ORANGE (TPS 5V): Connect to 5v reference on throttle position sensor (TPS).
LT. BLUE (MANUAL BUMP DOWN): Once in MANUAL MODE, momentarily switch to ground to
DOWNSHIFT.
PINK (12V IGNITION IN): Connect to switched ignition 12v source.
WHITE (RPM/TACH IN): Connect to tach output on MSD Ignition or coil (-) on inductive ignition.
Note: Will accept 5V(+) used to trigger GM LS coil packs.
YELLOW (TPS SIGNAL IN): Connect to TPS sensor signal.
ATOMIC TCM HANDHELD MENU
SELECT PRODUCT: The Atomic TCM handheld will connect
to the TCM, and allow user changes to the TCM display
setup (Figure 3).
DISPLAY SETUP: The Display Setup controls the look of the
handheld unit and the Firmware version. (Figure 3).
LCD CONTRAST: Adjust the contrast on the LCD screen.
Using the joystick, the brightness level can be adjusted
up or down in 5% increments (Figure 3).
WIRING (FIGURE 2)
Figure 3
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