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Home >> Volvo >> 2003 >> C70 2.3 53, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Ignition And Control Systems - Design And Function (Coupe)) >> Ignition And Control Systems Me 7.0 (B5234T3; 1999-2001) >> Communication Via Network >> Serial Communication

Serial Communication

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

ECM (Engine Control Module) communicates serially with the following:

Immobilizer 

The request and exchange of information between the engine control module (ECM) and the Immobilizer.

Data Link Connector (DLC) 

The serial communication via the data link connector (DLC) (pin 7, C-line) is only used by the authorities and certain other workshops in the USA/CDN for reading off OBD II codes using the Generic Scan Tool.

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