RangeRovers.net Forum banner

1 - 3 of 3 Posts

·
Registered
2002-2005 Range Rover MkIII / L322
Joined
·
2 Posts
Discussion Starter #1
Hello everyone, good afternoon, before I get into details about the issue I am facing, let me tell you that I just changed from japanese vehicle to UK vehicle, and the vehicle I decide to change was my wife´s vehicle (go figure now the pressure I am in) the vehicle is a Range Rover L322 HSE NAS 2005, brought to Guatemala from Miami.

Ok let´s get on technical issue, I sent the vehicle to be serviced due to some messages on dash, they did change height sensor on left front wheel everything was ok but the ABS sensor on rear left wheel lit up, went ahead and review it and after this the nightmare started, switch engage to crank the starter, no starter, placed the OBDII reader, it says that he can not communicate with the ECM, I reviewed all of the connection, Kbus, CAN, etc. no change, this a month ago (not so happy, go figure wife´s mode about it )

Plus all this since I got the screen for the audio system is froze.

any help is more than welcome.
 

·
Registered
2002-2005 Range Rover MkIII / L322
Joined
·
127 Posts
Have you checked the 4 or 5 30 amp fuses in the engine electronics box? I would also check and replace all your fuses in the passenger's side glovebox fusebox.

If your diagnostic computer isn't able to establish a connection to the engine control module, then you might have a short or corrosion/water damage on connections. I would start with fuses, relays and then inspect all wires from the engine ECU to the firewall.

There are also a couple of reset procedures you can try. Hold down the check button on the instrument cluster (IKE), then insert the key and move it to the position where all lights on the dash are on, but no crank. then press the other button on the IKE and find the different tests (1 through 21 i believe)...there's a process documented in Rave under "L322 Range Rover System Description and Operation" under "Instruments" and "Description" on page 887 (link) that describes how to clear certain fault codes on the car without the use of any code readers.

Alternatively, you could disconnect the negative terminal to your battery and leave it disconnected for about 30 minutes. Then reconnect, reinitialize your SAS and try again. Also, check the basics like your battery and charging voltage to ensure that you just don't have a flat battery which can also cause issues like this.
 

·
Registered
2006-2009 Range Rover MkIII / L322
Joined
·
59 Posts
I am having the same issue with OBDII readers not connecting to the ECU. When i plug a reader into the OBD port i get a message that says no communication to ECM or link error. its so frustrating ! I have tried all the fusses and checked the OBD connector for damage ect. MJRGROUP, that`s interesting about the tests that can be done using the instrument cluster, does this work on a 2007 RR ? i looked at the link you gave to the workshop manual and it describes a software reset - Test 21. does this reset the software to factory default or just a reset as if you unplugged the battery and touched the terminals together ? i have tried doing a hard reset by touching the battery terminal wires together but that didn't solve my issues.


Test Function No. 21 – Software Resetl
This function is locked and needs to be unlocked via the procedure in Function Test No. 19. This function
activates a reset of the software by the processor. This can also be performed using TestBook/T4.

When function 21 is entered the display shows 'RESET?'. If the trip reset button is depressed the system reset
will be performed. If reset is not required, exit the test function by pressing the check control button or turning the
ignition off
 
1 - 3 of 3 Posts
Top