Scan Tool Connection
The MS42/MS43 has a separate OBD II Diagnostic Link Connector (DLC). The OBD II connector is located in the drivers footwell to the left of the steering column (right side of center console on the Z3). The DLC provides access for an aftermarket scan tool to all emission related control systems:
- ECM - Engine Management Monitored Emissions Functions/Components
- TCM (AGS/EGS) - Transmission Control
- EML - Electronic Throttle Control
This diagnostic communication link uses the existing TXD II circuit in the vehicle through a separate circuit on the DLC when the 20 pin cap is installed.