C13, C15, and C18 Generator Set Engines Caterpillar

The Electronic Control Module (ECM) detects Engine Intake Valve Actuator #1 : Current Below Normal

The ECM will log the diagnostic code.

The ECM monitors the current flow through the circuit for each actuator. If high current flow (short circuit) is detected, a 6 diagnostic trouble code is activated. The ECM will disable the solenoid circuit in order to prevent damage from the high current flow. However, the ECM will periodically try to activate the actuator. If the short circuit remains, this sequence of events will be repeated until the problem is corrected.

The ECM takes the following actions while the code is active:

• The ECM will derate the engine power by 10 percent.

• The amber warning lamp is illuminated.

Test Step 1. Perform the following diagnostic procedure: "Variable Valve Actuator - Test"

Results:

• OK - STOP