B&M 120001 SHIFT PLUS 2 TRANS CONTROLLER - Manual (Page 3)

OUTPUT SHAFT SPEED
This connects to a speed sensor at the rear of the transmission. In the case of the 4L80E transmissions, use the rear
most sensor.
THROTTLE / TPS SIGNAL
The THROTTLE connector can be plugged into an early style GM TPS sensor. Wiring adapters are available from
FAST™ ( fuelairspark.com) to accommodate a later style GM TPS (round, 3 pin connector). The harness can also be
modified for use with any 0-5V TPS.
Original
Pin Location
Color Function
A Black/Pink Ground
B White/Red TPS signal
C Red/White 5V
The loose TPS SIGNAL wire is provided to facilitate sharing the TPS signal between two systems (TCU and a fuel
injection system, for example) if needed. It splits off from the THROTTLE connector’s signal wire inside the harness.
Remote mount TPS kits are available from B&M to provide a TPS signal for carbureted applications (part # 120002) .
When installing one, adjust the linkage so that there is some preload on the sensor when the throttle is closed. Also
adjust it so that opening the throttle all the way causes the sensor to sweep through a majority of its range - but
without the sensor reaching its mechanical limit. Allowing the sensor to operate at its mechanical limits (high or low)
can lead to premature failure. It will cause a TPS error code to be set if the signal voltage goes above or below approxi-
mately 4.9V or 0.1V respectively. If needed, the signal voltage can be measured on the TPS SIGNAL wire.
TACH IN / RPM MODULE
The wire with the female terminal can go from the tach output from an ignition box, other RPM signal source or to the
Shift Plus 2 RPM Module depending on the application. See RPM Module notes. DO NOT connect this directly to the
ignition coil.
A second wire is provided to facilitate sharing the tach signal between two systems (TCU and a fuel injection system,
for example) if needed. The terminal on the second wire is the opposite gender. So something that would normally
connect to an ignition box tach output or the Shift Plus 2 RPM Module can instead be plugged into this second wire in
the TCU harness for a splice-free hook up.
MANUAL SHIFT
This connector contains the wires needed to enable and use manual bump up/bump down shifting. Buttons can be
mounted where ever they are convenient in the vehicle – on the steering wheel, on the shift lever, etc.
Pin Color Function Notes
A Red Bump Down Use momentary switch to ground to request a downshift.
B Yellow Bump Up Use momentary switch to ground to request an upshift.
C Blue Auto/Manual Use a toggle switch to ground to enable Manual Shifting.
D Black Ground Can be used as the ground source for switches.
SPEEDOMETER OUTPUT (orange wire)
This wire puts out a 12V square wave to drive an electronic speedometer. The number of pulses per mile is selected in
the handheld user interface.
ECONOMY / PERFORMANCE (purple wire)
When switched to ground through a toggle switch, this TCU input can be used to select a more performance oriented
shift strategy. Line pressure and shift points will be altered according to settings entered in the handheld user inter-
face.
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