SSM75531

Special Service Message
NOTE: A Special Service Message is a formal communication issued by Land Rover and carries
the same importance of a Technical Service Bulletin. An SSM is a quick method of
communicating "Need To Know" information to the technical service community. SSM's may
be issued in advance of a technical bulletin or may be the only communication on a given
topic. All information contained in Land Rover technical communications are intended for
use by trained, professional technicians with the knowledge, tools, and equipment required
to complete the procedure correctly and safely. It informs the Technicians of conditions that
may occur on some vehicles, or provides information that could assist in correct vehicle and
diagnostic service.
SSM 75531 - Gateway Module (GWM) - B1479-72 - Power Supply
Distribution Box - Actuator stuck open - PHEV Only
Models : Range Rover / L405
Range Rover Sport /
L494
Engineer Hooper Tristan
Name :
Last 15 SEP 2021 16:17:53
Modified :
Category : Electrical
Symptom : 206000 Warning Indicators
Content : Issue:
JLR is investigating charging system warning message
displayed in the Instrument Cluster (IC) resulting in the
Power Supply Distribution Box (PSDB) being replaced.
PLEASE NOTE - Only applicable to L405/L494 PHEV
Cause:
Unknown at this time – Warranty returns have been
tested and concluded no fault found.
Action:
Vehicle displaying this customer symptom with
B1479-72 - Power Supply Distribution Box - Actuator
stuck open logged within the Gateway Module (GWM),
please complete the following:
Refer to the electrical circuit diagrams 414-01
BATTERY, MOUNTING AND CABLES Power Supply
Distribution Box (PSDB) and check the circuit for
short circuit to ground, open circuit, high
resistance
Once these checks have been completed, if any
issues have been found with the main PSDB
circuits, please repair following the TOPIx repair
standards and submit an EPQR detailing the cause
including photos/videos etc
If no faults have been found and it’s concluded the
PSDB is the cause of the customer symptom,
continue to replace the PSDB
Confirm the concern is resolved
Thank you in advance for your assistance with this
matter.
Jaguar Land Rover Limited 2000 - 2021 (Rel. 2693)