Jaguar Cars Limited EMISSION DEFECT INFORMATION REPORT No. J09029D0B 

Causal part name: OBD Calibration 

Issued: 19 May 2010 

Page 1 of 2 

Code of Federal Regulations. Title 40. Part 85. Subpart T. 

§85.1903 - Emissions Defect Information Report 

(c)(1) The manufacturers corporate name. 

Jaguar Cars Limited. 

(c)(2) A description of the defect. 

A number of Jaguar S-type, XJ and XK vehicles fitted with 4.2 litre V8 engines displayed the malfunction 

indicator lamp with DTC P0411 stored. Engineering analysis revealed that technicians were not correctly 

diagnosing the root cause of the problem. 

In Jaguar XF vehicles the root cause of P0411 illumination was identified as the engine management diagnostic 

calibration, which falsely flagged incorrect secondary air injection pump pressure or check valve operation. 

2009 / 2010 model year XF vehicles were mildly affected by a low level manifestation of the problem. 

2010 model year XF vehicles in the VIN range R46314–R65794 were severely affected by this issue. 

(c)(3) A description of each class or category of vehicles potentially affected by the defect including make, 

model, model year, and such other information as may be required to identify these vehicles. 

See section (c)(4)(i) below. 

(c)(4) For each class or category of vehicle or engine described in response to paragraph (c)(3) of this section, 

the following shall also be provided: 

(c)(4)(i) The number of vehicles or engines known or estimated to have the defect and an explanation of the 

means by which this number was determined. 

MODEL 

YEAR MODEL TEST GROUP SALES DEFECTS 

2010 XF AJCXV04.2DNK 2222*

2010 XF AJCXV04.2DNK 90

2009 XK; XJ; XF 9JCXV04.2DNK 10784 388 

2008 XK; XJ8; XJ8L; VDP LWB; S-TYPE 4.2 8JCXV04.2DNK 5785 105 

2007 XK; XJ8; XJ8L; VDP LWB; S-TYPE 4.2 7JCXV04.2DNK 9182 439 

2006 XJ8; XJ8L; VDP LWB; S-TYPE 4.2 6JCXV04.2DNK 6120 478 

Data taken from Jaguar warranty reporting system 2009Q3. 

*Test Group AJCXV04.2DNK - 2222 vehicles in the VIN range R46314–R65794 were severely affected by this 

issue. 

EPA DR# 3970 

Received: May 28, 2010
Jaguar Cars Limited EMISSION DEFECT INFORMATION REPORT No. J09029D0B 

Causal part name: OBD Calibration 

Issued: 19 May 2010 

Page 2 of 2 

(c)(4)(ii) The address of the plant at which the potentially defective vehicles or engines were produced. 

Jaguar Castle Bromwich Plant, Birmingham, England. 

(c)(5) An evaluation of the emissions impact of the defect and a description of any driveability problems which a 

defective vehicle might exhibit. 

There is no adverse impact on emissions associated with this issue. 

There is no adverse impact on driveability associated with this issue. 

This issue may result in false M.I.L. illumination.

(c)(6) Available emissions data which relate to the defect. 

There is no impact on emissions associated with this defect. 

(c)(7) An indication of any anticipated manufacturer follow-up. 

Jaguar Special Service Message SSM41887 describes recommended diagnostic procedures and requests that 

technicians contact the Jaguar Help Line for assistance if the procedure fails to determine the source of the 

P0411 fault. The SSM covers all 2006-2010MY Jaguar models with the AJV8 4.2L engine. 

Jaguar Technical Bulletin JTB00189 instructs dealers to reconfigure the engine control module of 4.2L XF 

vehicles to address P0411 illumination caused by the low level issue. 

Jaguar Service Action 303-K050 instructs dealers to reconfigure the engine control module of 4.2L XF vehicles 

in the VIN Range R46314–R65794. 

EPA DR# 3970 

Received: May 28, 2010