SSM73960

8/14/2018
SSM73960 - AJ20P4 - Reduced performance- P0191-85 stored in the PCM. Possible MIL | TOPIx
Reference
SSM73960
Models
E-PACE / X540
F-PACE / X761
XE / X760
XF / X260
Title
AJ20P4 - Reduced performance- P0191-85 stored in the PCM.
Possible MIL
Category
Driveability
Last modified
14-Aug-2018 00:00:00
Symptom
698298 Malfunction Indicator Lamp
Content
Issue:
The customer reports reduced performance with P0191-85
observed in the PCM. This may or may not also illuminate the
MIL. DTCs P168F-00, P2178-00, or P144C-00 may be stored
also.
Cause:
An updated PCM calibration is in development to resolve
this complaint. The release is currently scheduled for Q4 of 2018.
Action:
If no issues are identified by primary and secondary diagnosis
outlined in the workshop manual, do not replace any parts at this
time. As an interim measure the DTCs should be cleared and
PCM adaptions must be reset. Perform the drive cycle below prior
to releasing the vehicle pending PCM calibration release.
Perform a short road test to get the vehicle to operating
temperature
Minimum 8 hour vehicle off soak
Ignition on, wait ~3 seconds, start engine
Drive and ensure 5 ECO stops complete during cycle
Confirm if the fault is pending in PCM or not
If fault is pending, raise a TA. If fault is not pending, release
the vehicle
Should a complaint exist of reduced engine performance, this can
be rectified by an ignition cycle with approximately 1 minute off
time. No damage is incurred during reduced engine performance
occurrences.
https://topix.jaguar.jlrext.com/topix/content/document/view?id=919957
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8/14/2018
SSM73960 - AJ20P4 - Reduced performance- P0191-85 stored in the PCM. Possible MIL | TOPIx
Technicians - Please rate this SSM and provide comments so that
future communications can be improved.
1 = Poor – Basic information provided – The SSM does not help
me resolve the customer concern.
3 = Average – Adequate information provided – The SSM partially
helps me resolve the customer concern.
5 = Excellent – All required information provided to resolve the
customer concern.
https://topix.jaguar.jlrext.com/topix/content/document/view?id=919957
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