P1450moderate severityPowertrain
Secondary Air Injection System Circuit Short
on 2006 Audi A6 3.2L V6 · AWD
What this code means
The ECU detected an electrical short in the secondary air injection system circuit. The system is unable to operate correctly, preventing proper cold-start emission reduction.
Symptoms
- Check Engine Light
- Higher cold-start emissions
- Failed emissions test
- Unusual noise from air pump
Common causes
- Shorted wiring in secondary air circuit
- Faulty secondary air pump motor
- Relay contact welded closed
- Damaged connector
- Water intrusion in air pump
Diagnostic steps
- Test secondary air pump motor resistance
- Check circuit for shorts
- Test relay operation
- Inspect connector and wiring
- Check for water entry in pump
Repair notes
Repair the electrical short or replace the secondary air pump.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1