Emissions - SES Lamp ON/DTC P0410/AIR Pump Inop.: Overview
TECHNICALBulletin No.: 02-06-04-024H
Date: February 22, 2012
Subject: Service Engine Soon (SES)/Check Engine Light MIL Illuminated, Secondary Air Injection Reaction (AIR) Pump Ingesting Water and DTC P0410 Set (Replace Secondary AIR Pump and Inlet Hose Assembly or Filter Kit)
Models:
2000-2003 Cadillac DeVille
2001-2002 Cadillac Eldorado
2001-2004 Cadillac SLS, STS
2001-2003 Oldsmobile Aurora
Equipped with 3.5L V6, 4.0L or 4.6L V8 Engine (VINs H, C, Y, 9 - RPOs LX5, L47, LD8, L37)
Supercede:
This bulletin is being revised to update the Warranty Information to provide a new labor operation. Please discard Corporate Bulletin Number 02-06-04-024G (Section 6 - Engine/Propulsion System).
Condition
Some customers may comment on the "Service Engine Soon" (U.S.) or "Check Engine Soon" (Canada) malfunction indicator lamp (MIL) being illuminated.
Technicians may find these additional conditions:
- DTC P0410 set.
- Evidence of water in the Secondary Air Injection Reaction (AIR) Pump.
- Secondary AIR Pump shorted out/inoperative.
Cause
This condition may be due to water being ingested at the secondary air injection reaction (AIR) pump inlet hose, causing the pump to short out or seize up.
Diagnostic Information
DTC P0410
Refer to SI for diagnostic information on DTC P0410.
If the diagnostic information above indicates a faulty AIR pump, follow the correction procedure below.
Notice
After the service procedure in this bulletin was been completed, the Secondary Air Injection Shut-Off valve(s) must be checked. A stuck valve (from carbon) can cause exhaust condensation to collect in the air pump causing a repeat non-function AIR pump.
Parts Information
Warranty Information
For vehicles repaired under warranty, use the table.
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