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Home >> Honda >> 2012 >> Accord SE >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Advanced Diagnostics - Accord - DTC P2240 Through U1101 >> DTC U0029: F-CAN Malfunction (BUS-OFF (Engine Control Module (ECM)/ Powertrain Control Module (PCM) (V6 Engine) >> General Description (V6 Engine)
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General Description (V6 Engine)

The controller area network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using two signal lines (CANH and CANL). When the engine control module (ECM)/powertrain control module (PCM) does not receive the signals via the CAN lines for a set time or more, the ECM/PCM detects a malfunction and a DTC is stored.