This T56 Magnum wiring harness makes swapping in the trans painless when it comes to the wiring side of things! It includes the plugs for reverse lockout, speed sensor, and reverse lights. BUT on top of that, it includes a bluetooth module, which allows you to convert the speed signal to work with OEM speedometers. And on top of that, it allows you to control the reverse lockout, for example LOCK out over 4MPH, unlock when under 2mph, and set delay times!
This eliminates the need for a separate lock out control box which used to be the only option to activate the reverse lock out correctly. Currently most folks just simply connect their lock out solenoid to a momentary on/off switch such as the brake light switch to activate. This method will get the job done, but can over work the solenoid, and over time shorten its life span.
For your electronic speedometer, the harness is equipped with 2 speed sensor outputs. The speed sensor outputs generate a square wave signal that goes from about -5 to roughly +5 volts, varying in frequency as the speed changes. But what if your ECM input needs a positive only signal? No problem! The output will automatically shift and give you 0 to +10 volts. The 2 speed sensor outputs are completely independent and can be calibrated separately with any pulse count and ratio you want.
WIRING INSTRUCTIONS PDF
| Transmission | Magnum, Magnum-F(GM), Magnum-XL(FORD), Magnum-XL(GM) |
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