DTC Advanced Diagnostics: P2654: General Description
The powertrain control module (PCM) commands the rocker arm control solenoid to switches the valve timing by opening and closing the oil passage to the variable cylinder management (VCM) mechanism. If the malfunction detection signal is ON (high) while the PCM outputs OFF (low) to the rocker arm control solenoid, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 0.5 second or more |
| DTC Type | One drive cycle, MIL on |