General Information

rv dm 08.02.003

The Arens shift-by-wire (SBW) push-button shift selector is part of an electronic shift control system used with Allison series 2100/2500 5-speed automatic transmissions. An electronic actuator is mounted to the transmission.

The 2100/2500 series transmissions have a park pawl and the SBW selector has a Park (P) position. See Fig..

  1. SBW Shift Selector

  2. Drive (D) Button

  3. Neutral (N) Button

  4. Reverse (R) Button

  5. Park (P) Button

  6. Select Display

  7. Select/Monitor Display Window

  8. Monitor Display

  9. Service Display

  10. Mode Function Label

  11. Mode Light

  12. Mode Button

  13. Upshift Button

  14. Downshift Button

Fig. 1, SBW Shift Selector (2100/2500 series)

In case the vehicle needs to be towed and the SBW system cannot be activated to move the transmission out of Park (P), a manual procedure is provided to shift the transmission. At the actuator, on the transmission, a port is provided to insert an Allen wrench to shift the transmission manually.

Calibrating Arens SBW

Note:
Document Number: 0000107946
Manual Publication Date: 2024-05-03
Topic Publication Date: 2024-05-03