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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1300, U1301 or U1305 (5.3L) >> Circuit Description

Circuit Description

Modules connected to the class 2 serial data circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. In addition to this, Node Alive messages are transmitted by each module on the class 2 serial data circuit about once every 2 seconds.

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