DTC P0606: Engine Control Module (ECM)/Powertrain Control Module (PCM) Processor Malfunction: General Description

If something is wrong in the engine control module (ECM)/powertrain control module (PCM), and the monitor signal from the digital knock system CPU is not received for a set time, or a signal communication error remains for a set time, the ECM/PCM detects a malfunction and stores a DTC.