TOPIx - SSM71870 - BCM and RFA related vehicle non-start issues

Reference

SSM71870

Models

LR4 / L319

Page 1 of 1

LR2 / L359
Range Rover / L405
Range Rover Sport / L494
Range Rover Evoque / L538
Range Rover Sport / L320
Title

BCM and RFA related vehicle non-start issues

Category

Electrical

Last modified

03-Jul-2014 00:00:00

Symptom

203000 Basic Electrical

Attachments

1Instructions to record a CAN trace.pdf, 1Non start RFA BCM full SSM flowchart.pdf

Content

Models affected
Discovery 4 / L319 -13 and 14MY
Range Rover (All New) / L405 – 13 and 14MY
Range Rover Evoque / L538 – 13 and 14MY
Range Rover Sport / L320 – 13MY
Range Rover Sport L494 (All new) – 14MY
Freelander 2 L359 – 13 and 14MY
Issue
Land Rover are currently investigating Body Control Modules (BCM) and Remote Function Actuators (RFA) replaced for a non-start
condition.
Following supplier analysis the modules have been categorized as "No Fault Found".
Cause
Currently under analysis.
Action
If a vehicle is presented with the following symptoms please follow the test procedure outlined below before consideration is given to
component replacement:
Vehicle does not lock or unlock using the key fob, or passive entry exit is not functioning.
After gaining entry to the car using key blade it does not start.
Even if entry is possible to the car, the car does not start when start button is pressed.
The vehicle has not had a software download immediately prior to the failure.
Test procedure:
Please follow the test procedure as detailed in the flowchart attached. Please note details at all important decision points and record
them on a TA raised (if any)
Also attached is the process for obtaining a can trace.
Please Note:
1. Do not disconnect the battery or perform a hard reset on the vehicle at least until this flow chart has been followed.
2. Do not disconnect or move any connectors on the BCM
3. If entry is gained in the vehicle with the key blade the alarm may sound, do not press the ignition switch to shut the alarm off
instead muffle the alarm sounder first then follow the test process in the flowchart.

http://topix.landrover.jlrint.com/topix/service/archive/486521/index

7/7/2014

Instructions to record a CAN trace
Pre-requisites
To carry out a CAN link monitor recording you must ensure you have the appropriate SW version and
Firmware version for

the device under use is updated as per the following procedure

SW= Software installed on tester (updated through Windows Start > All Programs > JLR > SDD >
VCI Device Drivers)
FW= Firmware installed on device (updated through DA App Hub for DA devices & I-View Device
Manager for I-View)
1. VCM - N/A (automatically updated but DVD137+ recommended)
2a. DA-Dongle - SW: V4.0 / FW: V57
2b. DA-Davina - SW: V4.0 / FW: V57
2c. DA-ST512 - SW: V4.0 / FW: V57
3. I-View - SW: V1.4.0 / FW: V5.1.0
4. MongoosePro JLR - SW: V1.1.12 / FW: N/A (automatically updates)
To run the CAN Link Monitor without diagnostics in Symptom Driven
Diagnostics (SDD):
1.

2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.

25.

Select 'START' (Windows 7) or the Windows icon (Windows XP) from
bottom tool bar.
Select 'All Programs'.
Select 'JLR'.
Select 'SDD'.
Select 'CAN Link Monitor'. A pop-up box will show.
Select 'Capture'.
Select 'Configure'.
Select the vehicle from the Platform drop-down menu.
Make sure both the Low Speed and High Speed CAN Networks are
selected.#
Select “'MONITOR WITHOUT RUNNING DIAGNOSTICS' from the Filter range box
Insert USB Flash Drive into a USB port on the SDD machine.
Select the drive location for the USB Flash Drive from the Log File box.
Enter in the vehicle VIN as the File Name.
Select 'OK'.
Select 'CAPTURE'
Select 'START LOGGING'.A pop-up box will show 'Logging started
successfully'.
Minimise the CAN Link Monitor window to the tool bar.
Start the vehicle function that needs to be monitored.
When the vehicle function has completed, select CAN Link Monitor tab from
the tool bar.
Select 'CAPTURE'.
Select 'STOP LOGGING'. A pop-up window will display 'Logging stopped
successfully'.
Locate the CAN Link Monitor file on the USB Flash Drive.
Open file and make sure the data has recorded correctly.
Close the file.
Remove the USB flash drive from SDD machine.

Start

Note vehicle condition as delivered i.e.
Mirrors folded in or out? (powerfold)
Look through windows are the doors
locked or not on the inside?
Are the smart keys in the vehicle or
outside?
Note this down for adding this detail to the
TA.

Press key fob button or Pull
door handle on passive entry
vehicles

Doors unlock ?

Power fold
Mirrors fold
out? If fitted.

Yes

Yes

No

No

Gain entry using key blade

Note this detail to
include in TA when
raised.

Alarm sounds, muffle
sounder if required.

Do not press ignition/
Start button

Gain entry

Note: the size of the data contained in
this CANlog will grow upto ~100mb. If
the data is to large at the end of this
process contact DTS for help in
recovering this data. Or attach to TA.

Connect SDD machine – start CANlink
Monitor (instructions must be obtained
from DTS), start CAN log as per correct
process. Please ensure that MONITOR
WITHOUT DIAGNOSTICS is selected.

To run the CAN Link Monitor without diagnostics in Symptom Driven
Diagnostics (SDD):
1. Select 'START' (Windows 7) or the Windows icon (Windows XP) from bottom tool bar.
2. Select 'All Programs'.
3. Select 'JLR'.
4. Select 'SDD'.
5. Select 'CAN Link Monitor'. A pop-up box will show.
6. Select 'Capture'.
7. Select 'Configure'.
8. Select the vehicle from the Platform drop-down menu.
9. Make sure both the Low Speed and High Speed CAN Networks are selected.
10. Select 'MONITOR WITHOUT RUNNING DIAGNOSTICS' from the Filter range box
11. Insert USB Flash Drive into a USB port on the SDD machine.
12. Select the drive location for the USB Flash Drive from the Log File box.
13. Enter in the vehicle VIN as the File Name.
14. Select 'OK'.
15. Select 'CAPTURE'
16. Select 'START LOGGING'.A pop-up box will show 'Logging started successfully'.
17. Minimise the CAN Link Monitor window to the tool bar.
18. Start the vehicle function that needs to be monitored.
19. When the vehicle function has completed, select CAN Link Monitor tab from the tool
bar.
20. Select 'CAPTURE'.
21. Select 'STOP LOGGING'. A pop-up window will display 'Logging stopped successfully'.
22. Locate the CAN Link Monitor file on the USB Flash Drive.
23. Open file and make sure the data has recorded correctly.
24. Close the file.
25. Remove the USB flash drive from SDD machine.

Start SDD session
Confirm smart key is not being
blocked by smart phone, laptop,
phone chargers / invertors etc.
Press start button without pressing
brake pedal

Ignition ON ?

Yes

The RFA & BCM are
responding as
required.

Yes

Place key at IAU.
Press start button
without pressing
brake pedal

No
Smart Key Not
Found
displayed?

Ignition ON ?

Yes

Remove and put back
fuse 17 from BCM

Switch
ignition OFF

All functions
restored?
No

No
Confirm the correct keys are being used by
confirming the correct key blades.

No

Check RFR for any RFA lost
comms with RFR related
DTCs. Rectify as required.

Run SDD IAU replacement App.

Now need to
confirm if BCM is
functioning
correctly.

Carry out Hazard
flasher test, press
hazard light switch

Front and rear
DI work?

Side repeaters
work?

Yes

No

All functions
restored?

Side repeaters
work?
No

No
Hazard Switch
illumination
works?

IPC Cluster telltale works?

No
Note this detail to
include in TA

Check for CAN
integrity (MS or
BO), repair as
necessary

RFA & BCM Start
& Entry
functions
restored?
No

Yes
Now outside the scope of
this flow chart.

No

Yes

Yes

Yes

No
Yes

Yes

Note this detail to
include in TA

Stop SDD session then stop
CAN Link Monitor, Raise TA and
then attach CAN log and
session file. Mention any
further comments from
customer that may be relevant.
Send all data to DTS.

End

Yes

The BCM is
responding as
required.

Follow SDD system mapping
and navigate to:Powertrain / Engine system /
Starting system (& any further
sub-symptoms) or
Electrical / Battery / Power
distribution / Ignition supplies
(& any further sub-symptoms)
Then perform the none start
app following this process.