Speed and idle control

WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

DTC	Error Message	Diagnostic Procedure	Malfunction Criteria and Threshold Value	Secondary Parameters with Enable Conditions	Monitoring Time Length	Frequency of checks, MIL Illum
P0501	Vehicle Speed Sensor A Range/Performance	Check the vehicle speed signal. Refer to → Speed Signal, Checking .	VSS signal, >184 MPH	Time after start, 3 sec.	5 Seconds	Multiple 2 DCY
P0506	Idle Air Control System RPM Lower Than Expected	Check the Throttle Valve Control Module J338. Refer to → Throttle Valve Control Module J338 , Checking .	Engine speed deviation, -80 RPM	Engine speed, Idle Vehicle speed, 0 MPH Mass air flow, 0.05 g/rev EVAP purge flow, 1 kg/h ECT, 60 - 110°C	13 Seconds	Multiple 2 DCY
P0507	Idle Air Control System RPM Higher Than Expected	Check the Throttle Valve Control Module J338. Refer to → Throttle Valve Control Module J338 , Checking .	Engine speed deviation >80 RPM	Engine speed, Idle Vehicle speed, 0 MPH Mass air flow, 0.05 g/rev EVAP purge flow, 1 kg/h ECT, 60 - 110°C	13 Seconds	Multiple 2 DCY
P0562	System Voltage Low	Check the Transmission Control Module (TCM) J217 voltage supply. Refer to → Transmission Control Module (TCM) J217 , Voltage Supply, Checking .	Battery voltage to low 78.4 V Battery voltage to low to operate solenoids, but able to maintain the present solenoid state 9 V	Engine speed or input speed, > 1400 RPM And position, N or P Or Engine speed, >500 RPM And position, Not (P or N) FET, Enabled	0.05 Seconds 2.5 Seconds	Continuous 2 DCY
P0563	System Voltage High	Check the Transmission Control Module (TCM) J217 voltage supply. Refer to → Transmission Control Module (TCM) J217 , Voltage Supply, Checking .	Battery voltage to high >16 V	FET, Enabled Engine speed, >400 RPM Jump start, No	2.5 Seconds	Continuous 2 DCY