System Overview

Trionic engine management system uses an Electronic Control Module (ECM) located next to glove box on right side. See Fig 1.

If any monitored malfunction is detected by ECM, Malfunction Indicator Light (MIL) will display CHECK ENGINE on instrument cluster and a Diagnostic Trouble Code (DTC) may be stored in ECM memory. MIL may also be referred to as CHECK ENGINE light. DTCs can be retrieved or erased using a scan tool connected to Data Link Connector (DLC). See RETRIEVING DIAGNOSTIC TROUBLE CODES .

Fig 1: Identifying & Locating Main System Components - 9-3 Series (1 Of 2)

Courtesy of SAAB-SCANIA OF AMERICA, INC.

Fig 2: Identifying & Locating Main System Components - 9-3 Series (2 Of 2)

Courtesy of SAAB-SCANIA OF AMERICA, INC.