Advanced Diagnostics

DTC P0606: Powertrain Control Module (PCM) Processor Malfunction




General Description
If something is wrong in the 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 PCM detects a malfunction and a DTC is stored.




Monitor Execution Sequence, Duration, DTC Type, OBD Status




Enable Conditions

Malfunction Threshold
One of these conditions must be met for at least 5 seconds.
- No signal from the digital knock system CPU is detected.
- Signal from the digital knock system CPU is abnormal.

Driving Pattern
Start the engine, let it idle for at least 30 seconds or hold the engine speed to at least 1,000 rpm.

Diagnosis Details

Conditions for illuminating the MIL
When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the PCM memory.

Conditions for clearing the MIL
The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting the battery.