Conditions Which Generate This Code:
The Engine Control Module (ECM) detects the following conditions:
• The intake valve actuation pressure is lower than the expected intake valve actuation pressure.
• There is at least one “Intake Valve Actuator not responding” diagnostic code that is active.
The ECM will log the diagnostic code and the ECM will trigger a snapshot. The check engine lamp will illuminate while this diagnostic code is active. The ECM will use a default torque map.
Possible Performance Effect:
The engine will be derated while this diagnostic code is active.
Note: Full power will be restored if the diagnostic code becomes inactive.
Note: The engine will be permanently derated if this code is logged several times. The Caterpillar
Electronic Technician (Cat ET) is required to clear the diagnostic codes in order to restore full power.
Perform the following diagnostic procedure: “Intake Valve Actuator Response – Test”
• OK – STOP.