4.4.5 BIM-22-3 (Tire Pressure Monitoring System)¶

Type: Tire Pressure Monitoring System (TPMS)
Model: BIM-22-3
Manufacturer: Dakota Digital
Product Page: Tire Pressure Monitoring System
Manual: BIM-22-3 Manual
Overview¶
Wireless TPMS module displaying real-time tire pressure for all four wheels on HDX dashboard message center. Includes 4 wireless valve stem sensors.
Mounting: HDPE panel on firewall (behind dashboard)
Power: Via BIM/IO cable from HDX control box (no separate power wiring)
Specifications¶
- Sensors Included: 4x wireless valve stem sensors
- Maximum Sensors: 4 (fixed - cannot add spares)
- Sensor Type: Dismount-to-install valve stem replacement
- Communication: Wireless RF (sensors → BIM-22-3 receiver)
- Display: Dashboard message center shows all 4 tire pressures
- Programming: Sensors easily reprogrammed via Bluetooth app
- Current Draw: TBD (powered via BIM cable)
- Compatibility: HDX, RTX, GRFX systems (limited VFD3/VHX compatibility)
Display Integration¶
Dashboard Message Center:
- Displays all 4 tire pressures simultaneously
- Pressure units: PSI (configurable)
- Low pressure threshold: User-configurable via Bluetooth app
- Visual warnings for low pressure conditions
Tire Rotation:
- Sensors remain with wheels during rotation
- Reprogram sensor assignments via Bluetooth app after rotation
Wiring¶
| Connection | Source | Destination | Wire Gauge | Notes |
|---|---|---|---|---|
| Constant | Critical Cabin PDU Slot 5 | BIM-22-3 power | 18 AWG ✓ | BIM CONSTANT power |
| BIM/IO | HDX control box | BIM-22-3 input | Proprietary | Data via daisy-chain |
| Sensors | Wireless | BIM-22-3 receiver | - | No wiring - RF communication |
No External Wiring:
- Sensors communicate wirelessly with BIM-22-3 receiver module
- BIM-22-3 powered via BIM harness from HDX control
- Clean installation - no wiring to wheels or suspension
Outstanding Items¶
- Confirm TPMS sensor compatibility with wheel/tire setup (valve stem hole size)
- Determine sensor battery life and replacement procedure
Related Documentation¶
- Dakota Digital System Overview - Complete system architecture
- Dashboard Cluster - Displays TPMS data in message center
- HDX Control Module - Bluetooth app for sensor programming