Emissions - MIL ON/DTC's P0410/P0411/P1423 Set

Condition

Malfunction Indicator Light ON, DTC P0410, P0411 or P1423 Stored in DTC Memory





01 07 15 Jan. 25, 2007, 2001940, supersedes Technical Bulletin Group 01, number 02-05, dated Aug. 23, 2002 due to inclusion in ElsaWeb.

Technical Background
Malfunction Indicator light (MIL) is ON, Diagnostic Trouble Codes (DTC) P0410, P0411 or P1423 are stored in DTC memory.

May be caused by a cracked or broken (braided cloth-covered) vacuum hose(s) due to temperature variations.

The most common DTCs associated with broken or cracked vacuum hoses are P0410, P0411, or P1423.

DTC DTC Text
P0410 Sec. Air Inj. (AIR) Sys., Malfunction
P0411 Sec. Air Inj. (AIR) Sys., Incorrect Flow Detected
P1423 Bank 1 Sec. Air Inj. (AIR) Sys., throughput too small

Production Solution





Engine number "Code letters" and "Serial number" can be found on the front of the engine near the engine/transmission joint (engine code AEG shown).

Engine/serial number may also be located on a label on the cylinder head cover and vehicle data plate.

Vacuum hose material was changed with the introduction of engine codes AVH and AZG.

Service
- Connect VAS 5051 or VAS 5052.
- Check for DTC P0410, P0411, or P1423 stored in DTC memory.
- Remove upper engine cover.





- Inspect for damaged vacuum hoses at Secondary air inlet valve -2- to combi valve -20- and vacuum hose -3- from secondary air inlet valve -2- to brake booster vacuum check valve.
- If damaged, replace vacuum hoses from Secondary air inlet valve -2- to combi valve -20- and vacuum hose -3- from secondary air inlet valve -2- to brake booster vacuum check valve with hose from repair kit. See Required Parts and Tools.

Repair kit contains one (1) vacuum hose, approximately 3.3 feet long (cut and adjust to required length).

For Secondary air injection hose overview, see Repair Manual Group 26, Exhaust system emission controls, Secondary air system components, removing and installing.
- Reinstall upper engine cover.
- Erase any stored DTCs using VAS 5051 or VAS 5052.





Warranty

Required Parts and Tools





Tip: Part numbers listed in this Technical Bulletin are for reference only. Always check ETKA for the latest parts information.