HOUSING AS-RH 3Z4725 - Caterpillar

Which Generate This Code:This diagnostic code will only appear if an electronically controlled wastegate is installed.The Electronic Control Module (ECM) detects the following conditions:
A high current condition in the output from the ECM to the solenoid in the wastegate regulator
No active 0168 diagnostic codesSystem Response:If equipped, the warning lamp will come on once the diagnostic code has been active for 30 seconds. The diagnostic code will be logged. After the derate has been activated, the electronic service tool will indicate "Turbo Protection Derate Active". The engine will be derated while this diagnostic code is active.This diagnostic code will detect a fault in the circuit for the solenoid in the wastegate regulator. This problem is most likely to be caused by a high side short to ground or a low side short to power.Test Step 1. Perform the following diagnostic procedure: Wastegate Solenoid - TestResults:
OK - STOP