DTC Advanced Diagnostics: P0604: General Description
The powertrain control module (PCM) performs read/write check for random access memory (RAM) that is used on functional safety field, and detects writing disability of the RAM. If writing disability of the RAM is detected, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | - |
| DTC Type | One drive cycle, MIL on |