P174B AUDI – Valve 4 In The Sub-Gearbox 1 Electric Fault

P174B AUDI Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P174B AUDI Possible Causes

Faulty Valve 4 In The Sub-Gearbox 1,Valve 4 In The Sub-Gearbox 1 harness is open or shorted,Valve 4 In The Sub-Gearbox 1 circuit poor electrical connection

P174B AUDI Description

The Engine Control Module (ECM) monitors the Valve 4 In The Sub-Gearbox 1. The ECM sets the OBDII code when the Valve 4 In The Sub-Gearbox 1 is not to factory specifications.