SSM74570

Special Service Message
NOTE: A Special Service Message is a formal communication issued by Jaguar 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 Jaguar 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 74570 - NLI Head unit causing battery
drain issue
Models : F-Pace / X761
F-Type / X152
XE / X760
XF / X260
Engineer :Shilvock Matthew
Date Last 08 OCT 2019 12:32:07
Updated :
Content :Issue
Customer experiences, ‘Low battery message’ on the instrument panel, and is
unable to start the vehicle. No associated DTC’s flagged. Cause Incontrol touch
wakes up the CAN bus intermittently. Investigation in progress.
Action
If customer faces above issues and all standard diagnostic processes have failed to
resolve the issue, then
1. Recharge battery if required.
2. Isolate Audio Head Unit (AHU) from CAN by disconnecting the connector (See
attached document for reference)
3. Carryout quiescent current draw test on vehicle specific fuse for AHU power:
For Discovery Sport, Range Rover Evoque, XE, XF and F-pace vehicles use Fuse 5A in
the quiescent current module.
For F-type, use Fuse FA5 in the quiescent current module.
For Discovery, use Fuse 51R in the rear junction box.
After Locking vehicle and waiting for 10 minutes for it to go to sleep (warning light
off).
4. Please raise Technical Assistance if measured current draw is higher than 5
milliamps.
Version : 1
Jaguar Land Rover Limited 2000 - 2019 (Rel. 2673)