SSM73402

TOPIx - SSM73402 - Fuel Level Display Low Or Zero When Full DTC B1A75-11/ B1A...
Reference
SSM73402
Models
Discovery / L462
Page 1 of 2
Range Rover / L405
Range Rover Sport / L494
Title
Fuel Level Display Low Or Zero When Full DTC B1A75-11/ B1A76-11 Stored
Category
Electrical
Last modified
29-Nov-2017 00:00:00
Symptom
205000 Electrical Accessories
Content
Issue: A customer may report that the fuel level displays low when the quantity of fuel
in the tank is higher or possibly full. The Diagnostic Trouble Codes (DTCs) B1A75-11
Fuel Sender 1 or B1A76-11 Fuel Sender 2 or both, will be present in the Body Control
Module (BCM) if the concern appears. If the vehicle ignition is switched off for a period
of time between 2 seconds and 2 minutes and then back on again, the fuel gauge
reading will return to normal. The concern affects 17MY only.
Cause: Body Control module Software
Action: If a customer reports the concern and any of the above DTCs are present in
the BCM, using Pathfinder version 120 or later loaded, download the latest software to
the Gateway Module (GWM) and BCM as follows:
Note: If the 'Update ECU' function is greyed out then the software is already at the latest
level. Proceed to the next step.
1. CAUTION: This procedure requires Pathfinder version 120 loaded or a later.
Connect the Jaguar Land Rover (JLR) approved battery support unit.
2. Connect the JLR approved diagnostic tool to the vehicle and begin a new diagnostic
session.
The JLR approved diagnostic tool will read the correct VIN for the current vehicle and
automatically take the vehicle out of ‘Transportation mode’ if required.
3. Follow the JLR approved diagnostic tool prompts.
4. Select 'ECU Diagnostics'.
5. Select 'Gateway module 'A' [GWM]'
6. Select 'Update ECU'.
7. Select 'ECU Diagnostics'.
8. Select 'Body Control Module [BCM]'
9. Select 'Update ECU'.
10. Follow all on-screen instructions to complete this task.
11. If required, reset the vehicle to ‘Transportation mode’.
https://topix.landrover.jlrext.com/topix/service/document/859034
11/29/2017
TOPIx - SSM73402 - Fuel Level Display Low Or Zero When Full DTC B1A75-11/ B1A...
Page 2 of 2
12. When all of the tasks are complete, exit the session.
13. Disconnect the JLR approved diagnostic equipment and the JLR approved battery
support unit.
Affected VIN range –
17MY Range Rover 12403 to 138521,
17MY Range Rover Sport 320324 to 333477 and 666892 to 673461,
17MY New Discovery 00053 to 002440.
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.landrover.jlrext.com/topix/service/document/859034
11/29/2017