DTC P0411 Secondary Air System Incorrect Flow Detected: Notes
DTC DETECTING CONDITION:
Detected when two consecutive driving cycles with fault occur.
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to
OPERATION
, Clear Memory Mode.>, and Inspection Mode <Ref. to
PROCEDURE
, Inspection Mode.>.
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK SECONDARY AIR COMBINATION VALVE. Check the pipe between the secondary air combination valve and cylinder head. |
Is there damage or disconnection of the pipe? | Replace the pipe between secondary air combination valve and cylinder head. <Ref. to Secondary Air Combination Valve .> | Go to step 2 . |
| 2 CHECK SECONDARY AIR COMBINATION VALVE. Race the engine at 2, 000 rpm to check whether or not the exhaust leak is heard. |
Is there any exhaust leak? | Replace the pipe between secondary air combination valve and cylinder head. <Ref. to Secondary Air Combination Valve .> | Repair the poor contact of ECM connector. |