Hi, I was wondering if anyone could help me pinpoint an issue with an L405.

Intermittently the engine will completely switch off while driving and the dash goes nuts lighting up like a Christmas tree everything goes into fault.

I've checked the grounds in the wheel arches and the ones in the engine bay (behind the air box and the ones up by the bulkhead ) as well as the strap that goes on to the transfer/gearbox

As I'm not as familiar with these would someone be willing to help me work threw this

I would like to add this is low milage 60k and when I checked the earth points even though they looked OK (no sign of corruption at all) I still removed them cleaned them and refitted them regardless, and both batteries have been replaced as they were testing bad

There is a flash/burn mark on the posertive battery connector from where its been jump started

I will put the dish scan data below

Its a pain its so intermittent when im checking powers grounds and scoping the fault does not happen to see it only appears to happen while driving

Many thanks

TGS3s
System type Status Faults

ABS - - (ABS) Antilock braking system [--/13>--/14] - P YES
 • U0001 - 87 High Speed Controller Area Network Communication Bus -
Message missing MEM -

 • U0001 - 81 High Speed Controller Area Network Communication Bus -
Received serial data non valid MEM -


Adaptive Cruise Control - - (CCM) Cruise Control Module [--/13>--/16] Adaptive
speed control P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM -

 • U0415 - 81 Invalid Data Received From Anti-Lock Brake System (ABS) Control

Module - Received serial data non valid MEM -

 • U0418 - 68 Invalid Data Received from the Brake System Control Module -
Event information MEM -


Adaptive Cruise Control - - (CCM) Cruise Control Module [--/13>--/16] Speed
control P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM -

 • U0415 - 81 Invalid Data Received From Anti-Lock Brake System (ABS) Control
Module - Received serial data non valid MEM -

 • U0418 - 68 Invalid Data Received from the Brake System Control Module -
Event information MEM -


Air conditioner - - (HVAC) Heating, Ventilation and A/C [--/13>--/13] - P YES

 • B12A6 Auxiliary heater water pump status ATT -

 • B13C2 Front Windscreen/Windshield Misting Sensor ATT -


Air conditioner - - (HVAC) Heating, Ventilation and A/C [--/14>] - P YES

 • B12A6 Auxiliary heater water pump status ATT -

 • B13C2 Front Windscreen/Windshield Misting Sensor ATT -


Airbag - - (RCM) Restraint Control Module [--/13>--/16] - P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM -


Audio amplifier system - - (AAM) Audio amplifier module - - P NO


Audio control - - (ACM) Audio control module [--/13>--/16] - P NO


Automatic transmission - - (TCM) Transmission control module [--/13>--/16] - P YES

 • U0100 - 63 Lost Communication With ECM/PCM "A" - Circuit/component
protection timeout MEM -


Body Computer - - (BCM) Body Control Module - - P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM -

 • U0155 Lost communication with the instrument panel control unit MEM -

 • U0164 Lost Communication With Heating Ventilation Air Conditioning
Control Module MEM -

 • U0199 Lost Communication With Door Control Module A MEM
-
 • U0230 Lost Communication With Rear Tailgate Module MEM
-
Central console controls - - (FCIMB) Front controls interface module B - (HV
AC)


Heating, Ventilation and A/C controls
P NO


Central console controls - - (FCIMB) Front controls interface module B - Front
audio control panel
P NO


Central console controls - - (FCIMC) Front controls interface module C - Front
audio control panel
P NO


Chassis management system - - (CHCM) Chassis control module - -
P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM
-

 • U0402 Invalid data received from transmission control unit MEM
-

 • U0415 Invalid Data Received From Anti-Lock Brake System (ABS) Control
Module MEM
-


Chassis management system - - (CHCMB) Chassis control module B [--/13>-
-/13] -
P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM
-

 • U0415 Invalid Data Received From Anti-Lock Brake System (ABS) Control
Module MEM
-


Chassis management system - - (CHCMB) Chassis control module B [--/14>-
-/16] -
P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM
-

 • U0415 Invalid Data Received From Anti-Lock Brake System (ABS) Control
Module MEM
-


Diesel injection Bosch 17 CP 11 EDC - With DPF - Euro 5/Euro 6
P YES

 • P0700 Transmission Control System (MIL Request) MEM
-


Digital radio tuner - - (DBAM) Digital radio transmission control unit [--/13>-
-/16] -
P NO


Driver side door - - (DDM) Driver Door Module - -
P NO


Driver side pretensioner - - (SPMA) Pretensioner driver side - -
P NO


Dynamic drive control - - (ATCM) All terrain control module [--/13>--/16] -
P YES

 • U3003 - 62 Battery voltage - Signal comparison failure
AT
T
-


Front camera - - (HCMB) Headlight electronic control unit - Module B - With
front camera [--/14>--/15] High Line
P NO


Front camera - - (HCMB) Headlight electronic control unit - Module B - With
front camera [--/14>--/15] Low Line
P NO


Front interface module - - (FCDIM) Front Control Display Interface Module [-
-/13>--/15] -
P NO


Front interface module - - (FCDIM) Front Control Display Interface Module [-
-/16>] -
P NO


Gateway - - (GWM) Gateway Module [--/13>--/13] Dual battery
P NO


Gateway - - (GWM) Gateway Module [--/13>--/13] Single battery
P NO


Gateway - - (GWM) Gateway Module [--/14>--/16] -
P NO


Gear selector lever - - (GSM) Electronic Gear Selector Module [--/13>--/16] -
P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM
-


Headlight adjustment - - (HCM) Headlight Control Module - -
P NO


Immobilizer - - (VIM) Vehicle immobilizer control module - -
P NO


Instrument panel - - (IPC) Instrument Panel Cluster - -
P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM
-


Keyless go system - - (RFA) Keyless vehicle module - -
P NO


Lower liftgate - - (R
GTMB) Rear Gate/Trunk Module - -
P NO


Navigation system - - (NCM) Navigation control module [--/13>--/15] -
P NO


Navigation system - - (NCM) Navigation control module [--/16>--/16] -
P NO


Parking aid cameras - - (IPM-B) Image Processing Module [--/13>--/15] -
P YES

 • U0140-08 - Lost communication with the Body Computer - Bus
signal/message malfunction MEM
-


Parking aid cameras - - (IPM-B) Image Processing Module [--/16>] -
P YES

 • U0140-08 - Lost communication with the Body Computer - Bus
signal/message malfunction MEM
-


Parking brake - - (PBM) Parking Brake Module - -
P YES

 • U0100 Lost Communication With ECM/PCM "A" MEM
-


Parking help - - (PAM) Parking Assist Module [--/13>--/16] -
P NO


Passenger side door - - (PDM) Passenger Door Module - -
P NO


Passenger side pretensioner - - (SPMB) Passenger side pretensioner - -
P NO


Passenger side seat adjustment - - (PSM) Passenger Seat Module [--/13>--/13] -
P NO


Passenger side seat adjustment - - (PSM) Passenger Seat Module [--/14>--/15] -
P NO


Passenger side seat adjustment - - (PSM) Passenger Seat Module [--/16>--/16] - P NO


Power steer - - (PSCM) Power Steering Control Module [--/13>--/16] - P NO


Rear air conditioner - - (HVACR) Heating, Ventilation and Air Conditioning, Rear
compartment - -
P NO


Rear left seat adjustment - - (RLSM) Rear left seat module [--/13>--/13] - P NO


Rear left seat adjustment - - (RLSM) Rear left seat module [--/14>--/15] - P NO


Rear multimedia system - - (REM) Rear entertainment [--/13>--/16] - P NO


Rear right seat adjustment - - (RRSM) Rear right seat module [--/13>--/13] - P NO


Rear right seat adjustment - - (RRSM) Rear right seat module [--/14>--/15] - P NO


Satellite radio tuner - - (SRM) Satellite audio unit module [--/13>--/16] - P NO


Seat adjustment, driver's side - - (DSM) Driver Seat Module - - P NO


Seat air conditioning/heating adjustment - - (SCME) Front seat climate control
module [--/13>--/13] - P YES

 • U0140 Lost Communication With Body Control Module MEM -


Steering angle sensor - - (SAS) Steering Angle Sensor control unit [--/13>--/16] - P NO


TV tuner - - (TVM) Television Module [--/13>--/16] - P NO


Torque transfer box - - (TCCM) Transfer Case Control Module [--/13>--/13] - P YES

 • U0001 - 87 High Speed Controller Area Network Communication Bus -
Message missing MEM -


Torque transfer box - - (TCCM) Transfer Case Control Module [--/14>--/16] - P YES

 • U0001 - 87 High Speed Controller Area Network Communication Bus -
Message missing MEM -


Tyre pressure - - (TPM) Tyre Pressure Monitoring [--/13>--/15] Body computer P YES
 • U0100 Lost Communication With ECM/PCM "A" MEM -

 • U0155 Lost communication with the instrument panel control unit MEM -

 • U0164 Lost Communication With Heating Ventilation Air Conditioning
Control Module MEM -

 • U0199 Lost Communication With Door Control Module A MEM -

 • U0230 Lost Communication With Rear Tailgate Module MEM -


Upper liftgate - - (RGTM) Rear Gate/Trunk Module - - P NO
(Hands-free) boot opening request system -- --
Calf rest support module -- --
Differential lock electronics -- --
Driver and passenger side running board -- --
Driver side rear door -- --
Head-up display -- --
Obstacle detection control unit, left side -- --
Obstacle detection control unit, right side -- --
Occupied seat detection -- --

That’s an awful lot of ‘lost communications’ … way more than I would expect see if there had been a battery fail or low voltage

Which to me would have me looking at the systems the various ecu talk to each other. For example are the connectors fully home on the control units , that sort of thing.

Does the engine falter and die, or does it instantly cut out and everything on the dash go mental? V8 or else ...

New batteries been fitted to rule them out…. Instantly cuts out… and intermittently…. When its runing it goes really well with no issues then cuts dead Range Rover Vogue Td6 2006-2010 (Java Black)

The codes with a U in front are all simple battery low voltage so can be dismissed...
Anything with a B or P code can be treated as an issue to further investigate sir...

fisha wrote:

That’s an awful lot of ‘lost communications’ … way more than I would expect see if there had been a battery fail or low voltage

Which to me would have me looking at the systems the various ecu talk to each other. For example are the connectors fully home on the control units , that sort of thing.

Does the engine falter and die, or does it instantly cut out and everything on the dash go mental?

ECU pinouts will be in the Workshop Manual that you can download from the WIKI, link top right of this page under fullfatrr.com.....

Please let us know when you have sorted it....  Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Main fault Turned out to be a dodgy relay for ECU that functioned most of the time but dropped out occasionally.. swapped relays for ECU out and all good now on the major faults as above so don't necessarily trust a relay that appears to be good on test… Range Rover Vogue Td6 2006-2010 (Java Black)

Thanks for posting the solution sir…

Butters wrote:

Main fault Turned out to be a dodgy relay for ECU that functioned most of the time but dropped out occasionally.. swapped relays for ECU out and all good now on the major faults as above so don't necessarily trust a relay that appears to be good on test…

Cam-Tech-Craig wrote:

The codes with a U in front are all simple battery low voltage so can be dismissed...
Anything with a B or P code can be treated as an issue to further investigate sir...