TOPix - SSM72584 - 2.0L GTDi Check Engine Light Illuminated with DTC P2096 and o... Page 1 of 2

Reference

SSM72584

Models

Discovery Sport / L550
Range Rover Evoque / L538

Title

2.0L GTDi Check Engine Light Illuminated with OTC P2096 and or P2097 Stored in
PCM

Category

Driveabi lity

Last modified

11-Jan-2016 00 :00 :00

Symptom

698298 Malfunction Indicator Lamp

Attachments

High-Pressure Diagnostic Leak Detector lnformation1 .pdf (High-Pressure Diagnostic
Leak Detector lnformation1 .pdf)

Content

Issue:

Customer has observed 'Check Engine Light' - also known as 'Engine Malfunction
Indicator Lamp (MIL)' - illuminated in the instrument cluster & OTC P2096-00 and/or
P2097-00 is evident in the PCM.
A concern in the PCM diagnostic software has been discovered, which when combined
with a specific customer drive cycle can lead to the false flagging of this OTC. Work is
on-going to deliver revised PCM software; timing is to be confirmed.
Exhaust system leaks outside design specification can increase the likelihood of repeat
failures.
JLR have recognised that the supplied leak check equipment does not fit on certain LC Discovery Sport exhaust tail pipes. A solution is being sourced.
Action:

As per the 'Possible Cause' listed in TOP Ix, there may be an air leak in the exhaust
system. If possible, carry out a leak check of the exhaust system and follow the actions
as detailed below:
1. Perform a pressurised smoke test of the exhaust system using the high pressure
supplied JLR 'High-Pressure Diagnostic Leak Detector' test equipment.
0

°ࣨ

Maximum test pressure for ALL Exhaust gas joints is 0.5 bar (7.3 PSI).
Flow rate is visible on the test equipment on the front right hand side. The midpoint/ widest point of the float, is the reference point to be used, when reading
the value. Please record this value for submission on either TA or EPQR.

0

The Turbo waste-gate operating shaft is a clearance fit in the shaft bush and
therefore under these specific test conditions, a 'leak' is expected to be seen
and will not be the cause of the CEL. (This may only be evident when the
engine has been left not running for more than 6 hours)

http://topix.landrover.jlrext.com/topix/service/arc hi ve/61043 5/index

2/1/2016

TOPix - SSM72584 - 2.0L GTDi Check Engine Light Illuminated with DTC P2096 and o... Page 2 of 2

2. When pressurizing the exhaust system with smoke pay particular attention to:
0

The welding around the bosses where the 02 sensors are fitted

0

The flange where the turbocharger and exhaust meet

0

The flexible coupling

0

The flange where the primary and secondary catalytic converters meet.

0

Note: Leak rate of less than 12 I/min on the total system is acceptable. If the
total leak rate exceeds 12 I/min, separate the exhaust system at the joint
immediately behind the 3rd 02 sensor. Retest the system from this joint back to
the tail pipes, leak rate should be< 10 I/min. Also test forward of this joint, leak
rate should be < 2 I/min. Please identify any component that fails to meet this
specification, raise a TA and advice will be provided on a case by case basis.

3. Check the 3 exhaust manifold to catalytic converter bolts are tightened to
24Nm/18Lb-ft - do not loosen bolts first only tighten them.
4. Check each of the 3 heated 02 sensors are tightened to 48 Nm / 35 Lb-ft - do not
loosen bolts first only tighten them.
5. If a leak is detected when performing steps 1 to 4, please collect photographic
evidence, rectify the problem and proceed to step 6.
6. If no exhaust leaks are evident and/ or have been rectified, please clear the DTC's.
7. Updates on software availability will be provided as soon as available.

http://topix.landrover.jlrext.com/topix/service/arc hi ve/61043 5/index

2/1/2016

High-Pressure Diagnostic Leak Detector

The high-pressure diagnostic leak
detector has a variety of applications in
detecting even very small leaks in
different applications

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Flow rate is visible on the test equipment on the
front right hand side. The mid-point/ widest
point of the float, is the reference point to be
used, when reading the value. Please record this
value for submission on either TA or EPQR.

••• •••

Flow Meter
I/min AIR