DeVille DTS V8-4.6L VIN 9 (2002)
Air Injection Hose/Tube: Customer Interest
Emissions - SES Lamp ON/DTC P0410/AIR Pump Inop.
Bulletin No.: 02-06-04-024G
Date: June 05, 2006
TECHNICAL
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
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 model year for Cadillac DeVille, parts usage information and enhance the bulletin content. Please discard
Corporate Bulletin Number 02-06-04-024F (Section 6 - Engine).
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.
Note:
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.
Correction
Aurora and DeVille
Note:
A new Secondary AIR pump and Inlet hose assembly (kit), P/N 19515548 is now available and must be installed if the AIR pump is replaced.
Non-replacement and re-routing of the AIR pump inlet hose when servicing the AIR pump may result in a repeat non4unction AIR pump from
water ingestion.
1.
Turn the wheels to the left.
2.
Open the hood and install fender covers
