B&M 120001 SHIFT PLUS 2 TRANS CONTROLLER User Manual
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The LED on the front face of the TCU operates as follows:
On Solid:
TCU powered up and working normally.
Rapid Flashing:
An error code has been set. Select ERROR CODES from the main menu to check
and clear error codes.
Slow flashing:
TCU is in Flash Mode. Make sure the FLASH ENABLE wire is not grounded,
then key off, wait about 10 seconds and key back on.
Transmission Information
Transmission Troubleshooting
The Shift Plus 2 system relies on properly functioning components within the transmission to do its job correctly.
Some of those components can be checked by measuring resistance between the appropriate terminals in the TCU’s
main connector. To perform the testing, disconnect the main connector from the TCU and probe the pairs of termi-
nals with a multi-meter set to measure resistance. Terminal number are molded into the main connector.
Transmission Retrofit Details
The mechanical portion of this transmission swap is similar to swapping a 700R4 into an older model vehicle that was
originally equipped with a Powerglide, TH350 or TH400 transmission. Depending on the application, the driveshaft
may need to be lengthened or shortened. The crossmember may need to be moved and the transmission mount,
bellhousing and shift linkage may need to be modified. The starter may need to be replaced as well. If you are
installing a high performance aftermarket converter, you may even need to drill the flexplate holes oversize in order to
accommodate larger-than-factory bolts. Be sure to check this before attempting the swap. (It’s a hassle to have to
remove the transmission from the car simply because the converter bolts would not go through the flexplate!)
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