Bus Communication: Notes

WARNING: This page is about a different car, the 2001 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Abbreviation Specification

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Trionic, engine management system (TRIONIC)

TCM (Transmission Control Module), control module for automatic transmission (502)

TC/ABS (Traction Control) (382)

P-bus (Powertrain bus)

MIU (Main Instrument Unit) (540)

I-bus (Instrument bus)

SID (Saab Information Display) (541)

TWICE (Theft Warning Integrated Central Electronics) (632)

ACC (Automatic Climate Control) (216)

Audio system, main unit (353)

CDC (CD changer) (355)

PSM (Power Seat Memory) (357Dk)

PMM (Power Mirror Memory) (611)

DICE (Dashboard Integrated Central Electronics) (628)

Data link connector (H16-5/445)

Airbag (SRS) (331)

ABS (Anti-lock Brake System) (547)

SPA (Saab Parking Assistance) (630)

Fig 2: Circuit Diagram MIU.1

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 3: Circuit Diagram MIU.2

Courtesy of SAAB-SCANIA OF AMERICA, INC.