DTC Advanced Diagnostics: P0475 (3.0L Engine)
DTC P0475: Right Active Exhaust System Electrical Failure
General Description
The active exhaust valve actuator runs a self-diagnostic function to monitor if there is electrically or mechanically failure. The powertrain control module (PCM) communicates with the active exhaust valve actuator via local interconnect network (LIN) line and detects failure by monitoring the self-diagnostic information. If the received self-diagnostic information from the active exhaust valve actuator is abnormal, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 45 seconds or more |
| DTC Type | Two drive cycles, MIL off |
Enable Conditions
| Condition | |
|---|---|
| Vehicle | ON mode |
| Other | LIN communication is OK |
| Active exhaust valve actuator calibration is completed or failed |
Malfunction Threshold
The received self-diagnostic information from the active exhaust valve actuator is abnormal for at least 45 seconds.
Possible Cause
The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- Active exhaust valve actuator power supply voltage low
- Active exhaust valve actuator power supply voltage high
- Active exhaust valve actuator failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, a Confirmed DTC, the freeze data, and the on-board snapshot are stored. The MIL does not come on.
Conditions for clearing the DTC
The Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.