# HOWOT TCU A42DE on Proteus

[Proteus 0.2](Hardware-Proteus-Wiring-v02)

[Mazda Miata 2001](Mazda-Miata-2001)

AS      red     +12 running

AE yellow output speed sensor  blue

AF orange output speed sensor  orange

W     red input speed sensor  red

Z white input speed sensor  white

## Black 35 Pin 776231-1

|Pin Number|Name      | Type ID | Default function                   | rusEFI color | TCU connector |
| ---:|:------------- | ----- |:------------------------------------ |------------- | ------------- |
|  1  | Solenoid B    | hs    | high side control                    |         blue |    AN         |
|  2  | Solenoid A    | hs    | high side control                    |    green     |     AQ        |
| 13  |TCC Solenoid   | hs    | high side control                    |       orange       |    AO           |
| 18  | **GND**       | y     | Power GND for shift buttons          | black        | n/a           |
|     |               |       |                                      |              |               |
|     |               |       |                                      |              |               |
|     |               |       |                                      |              |               |

## Black 23 Pin 776228-1on Black Proteus 0.2

|Pin Number|Name      | Type ID | Default function                   | rusEFI color | TCU connector |
| ---:|:------------- | ----- |:------------------------------------ |------------- | ------------- |
| 1   | DIGITAL 2     | din   | "D" selector                         | orange       | C             |
| 2   | DIGITAL 3     | din   | "R" selector                         | green        | D             |
| 4   | VR2 pos       | vr    | Input Shaft positive                 | red          |  W            |
| 5   | VR1 pos       | vr    | Output Shaft positive                | orange       | AF            |
| 10  | DIGITAL 1     | din   | Manual Up-shift                      | green        | n/a           |
| 11  | DIGITAL 6     | din   | Manual Down-shift                    | white        | n/a           |
| 12  | VR2 neg       | vr    | Input Shaft negative                 | white        | Z             |
| 13  | VR1 neg       | vr    | Output Shaft negative                | blue         | AE            |
| 18  | +12 raw       | 12v   | ignition power / ECU power source    | Red          |    AS         |
| 19  | **GND**       | y     | Power GND                            | Black        |   AP          |
|     |               |       |                                      |              |               |
|     |               |       |                                      |              |               |
|     |               |       |                                      |              |               |

## White 35 Pin 776231-2

|Pin Number|Name      | Type ID | Default function                   | rusEFI color | TCU connector |
| ---:|:------------- | ----- |:------------------------------------ |------------- | ------------- |
|     |               |       |                                      |              |               |
|     |               |       |                                      |              |               |
|     |               |       |                                      |              |               |