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Home >> Buick >> 2005 >> Terraza CX, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Computer/Integrating Systems) >> Description and Operation >> Data Link Communications Description and Operation >> Class 2 Serial Data Usage
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Class 2 Serial Data Usage

WARNING: This page is about a different car, the 2005 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

The class 2 serial data communications circuit on this vehicle is only used for the 2.2L (L61) powertrain control module (PCM) diagnostics and PCM service programming system (SPS) programming. The 3.5L (LX9) PCM does not use a class 2 serial data circuit.

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