Ok, been absent for 2 months from here and the DII.
But got back to it this week and wrapped up the HG job.
I was the one who found a wrench inside the motor, and
then found stripped headbolts in the block, etc. Average DII day I think.

So it's all back together, but it will not crank over or even click.
And I think it is a lockout issue as the windows do not work either.

I charged the battery, jumpped from my other ride and always the same.
Everything lights and dings like it should, I get the check engine light so the ecm and bcm(?) are synced allowing start.

Only thing odd is the classic M and S lights, and an odd symbol in the LCD display, looks like a B with a line thru it. Cannot find what it means anywhere. I put a new battery in the key, battery in truck reads 12.6v.

I have suspect in the battery in the truck, but my wife swears it did this before and we just had to rub something the right way for it to start.
A button combo or something. Radio works.

Battery was disconnected from truck for 2 months, but other than that everything is back as it was.

 

Is the red LED on or flashing?

You might need to disarm the alarm. Do you have a remote?

 

The remote seems to work correct, I do have two of the key remotes and tried both.
The red light flashes when I arm it, and goes away like normal with disarm.

 

Maybe the xyz switch is out of whack. If you move the shifter through the range does the weird symbol ever turn into a P or N?

 

I did get two codes.
P0705 which is an xyz code
P1668 maybe an alarm code
I do not think the xyz switch would go bad sitting in
a driveway for two months.
But it is a Land Rover, stranger things have happened.
Now off to rave.

 

Follow that 1668 code to find the problem.

 

Personally I think the P1668 code is from sitting without a battery. It usually won't keep the thing from cranking. The XYZ will. I'm not saying that it "went bad" from sitting. It's a land rover... who knows why it might be bad or out of adjustment. Try starting it in neutral. (or what the LCD says in neutral.)

 

No luck in neutral or park, symbol stays the same.
Where is the sensor? I am lost in the rave looking for it's location.

How do I follow a code? is that something in the code reader
that I need to go deeper into the code, or thru the rave?

Seats do not work, windows do not work, main door lock switch does not work, door locks work with remote.
I reset the rollover thing, left the ignition key turned for 5 minutes, tried the lock unlock 4 times deal, cleaned battery and still charging it, beat on starter, grounded battery terminals together for a few minutes, checked all the ground straps.

.....I need a tissue....
Thanks for the helps

 

Found this stuff digging around

One guy thinks he cleared it by:

Don't sweat it. With supalock (or whatever it's called) if you click (the remote lock button) twice to lock the truck and only once to re-open, it'll pop the doors but leave the alarm armed. Try clicking twice, or when you get in, make sure your alarm armed red LED isn't still flashing. Mine does the same, reset the code and double click to get in and it hasn't come back. Gary

Maybe he means.

Double click to close and super-lock.
Then double click to open.
But, with mine, only one click to open works fine.


Here is a TSB I found on a competing board.

Found more info on Fault Code P1668:

Failure to Start - "Passive Immobilization" Enabled

AFFECTED VEHICLE RANGE:

Discovery Series II (LT) All

SITUATION:

VEHICLE MAY NOT CRANK AFTER BEING UNLOCKED

The customer may complain that occasionally the vehicle will not crank. This may be because the Non-NAS Passive Immobilization feature has been accidentally turned on in production or during repair operations.

If Passive Immobilization is enabled, the vehicle will immobilize itself if the ignition key is not turned to position "II" or the engine is not started within 30 seconds of unlocking the vehicle. With the ignition key in position "II", the vehicle will show that it is in the immobilized state by illuminating the alarm LED continuously. The engine will not crank if the ignition key is turned in an attempt to start the engine.

RESOLUTION:

REPLACE BCU WITH NEW OR RE-PROGRAMMED UNIT

To turn off the Passive Immobilization feature, replace the BCU with a new unit ensuring that the proper installation procedure is followed. Alternatively, after contacting the LRNA HelpLine send the original BCU to Land Rover to be re-programmed and install the re-programmed unit ensuring that the proper installation procedure is followed.

PARTS INFORMATION:

YWC000310 BCU

WARRANTY CLAIMS:

86.55.75 Time 0.50 hrs.
Install new or re-programmed BCU

FAULT CODE: A

Normal warranty policy and procedures apply

REPAIR PROCEDURE

SYMPTOM VERIFICATION OF ACTIVATED PASSIVE IMMOBILIZATION

1. Unlock the vehicle and wait one minute.

2. With the ignition off, verify that the anti-theft alarm LED in the instrument pack blinks slowly.

3. Turn the ignition key to position "II" and verify the alarm LED is on continuously. This indicates an immobilized condition.

4. Check that Passive Immobilization is on by attempting to start the vehicle with the LED on continuously.

5. If the vehicle does not start, confirm that Passive Immobilization is turned on as follows:

^ Turn off ignition and remove the key.

^ Press the unlock button on the plip once.

^ Attempt to restart the vehicle within 30 seconds.

^ If the vehicle starts normally, Passive Immobilization is activated. The BCU must be replaced or reprogrammed by Land Rover after contacting the LRNA HelpLine.



TESTBOOK VERIFICATION OF ACTIVATED "PASSIVE IMMOBILIZATION"

NOTE: The Bosch Engine Management ECU may flag a P1668 Fault Code if an attempt to start the vehicle is made when Passive Immobilization is activated. This will only be evident by interrogating the Bosch Engine Management ECU with TestBook. The fault will not turn on the Check Engine (MIL) lamp.

1. Using TestBook, verify Passive Immobilization is enabled as follows:

^ Select Vehicle Configuration.

^ Select Dealer Configuration.

^ Select "CLASS" (Corporate Locking and Alarm Security Strategy).

^ Note the status of Passive Immobilization.


2. If Passive Immobilization shows "Disabled" the setting is correct for North American vehicles and the no-start/no-crank condition has another cause.

3. If Passive Immobilization shows "Enabled" the BCU must be replaced to provide the customer with the standard North American configuration. Two options are available:

^ Return BCU to Land Rover for reprogramming and install the reprogrammed BCU with proper menu selections.

^ Install a new BCU from parts inventory and install with proper menu selections as outlined in TIB 86/03/01/NAS.


4. Call the Land Rover Technical HelpLine for approval before you replace a BCU or ship a BCU to Land Rover.


OPTION 1: RE-PROGRAM EXISTING BCU TO TURN OFF PASSIVE IMMOBILIZATION

NOTE: Because the "Passive Immobilization" is a security-related feature, there is no way to turn off this feature with TestBook. Land Rover has the ability to perform this function using special software. Land Rover will FedEx the BCU back to the retailer on the day received.

1. Verify that the ignition switch is in the OFF position.

CAUTION: The negative cable removal must be performed within 30 seconds of pressing the plip button.

2. Perform the following steps within 30 seconds:

^ Press the unlock button on the plip.

^ Immediately remove the negative battery cable from the battery.


3. Refer to the Workshop Manual and remove the BCU from the vehicle.

4. Send the BCU via FedEx to Land Rover North America Inc. for reprogramming and return.

5. Refer to the Workshop Manual and install the re-programmed BCU.


OPTION 2: INSTALL NEW BCU TO TURN OFF PASSIVE IMMOBILIZATION

CAUTION: When installing a new BCU, the default is "Passive Armed." Failing to follow the BCU installation/replacement process correctly could cause Passive Immobilization to be turned on again.

1. Refer to the Workshop Manual and install a new BCU.

2. Refer to TIB 86/03/01/NAS and follow the installation/replacement procedure carefully to ensure that the BCU is installed correctly and that "Passive" is turned OFF.
__________________

 

Found more...
Sending your sort of random stuff.
Hope that's OK.

Stuff from other boards....

Our Discovery II V8 engine spins over but fails to start.

The following fault comes up on the Bearmach Hawkeye diagnostic tool:

Fault 148 P1668 Anti-Theft Alarm System BCU/BeCM Serial Link Timeout Maximum Value Exceeded. Immobiliser signal- CAN data bus.

Has anyone been able to rectify this problem?
LRT.

ey guys and gals,

Just to update the problems and receive some help. I live in the states, Florida and yes I own a V8 petro Landy Dicso series 2 2002. Here is the problem in short

1. When it rains for a long while like 2 hours or more the Rover will not start.

a. The key cranks all lights work, radio, AC, dash lights, everything is normal the engine just will not start either not by fuel, or fire.

b. Changed spark plugs

c. Ran OBD 2 trouble shooter and received code P1668, the code refers to " ENGINE ANTI- THEFT SIGNAL CIRCUIT HIGH, SERIAL LINK OPEN CIRCUIT"

2. After about 12 hours or more of no rain, the car will start, as if the problem has dried out.

Seriously this is excatly what is happening, evertime it rains good, the ROVER will not start and when the SUN comes out and dries it all up, it starts. I Love my ROVER and want to fix this on my own, because its just the manly thing to do, no really I do not have the money to pay $110 an hour for service. If I could some how find that wire or problem area in the engine or on the ROVER I could fix it, I just need to know where that curcuit is...

PLEASE HELP.

Nash is wet Florida

-----

Disconnect the battery,then remove the passenger compartment fusebox.Have a good look at it,you will probably find signs of water contamination inside it.This unit is not just a fusebox,it also contains the IDM.Intelligent driver module - it works in conjuntion with the BCU and has lots of functions.
If there is water in it then thats probably whats wrong with it,so next you need to stop the water.Likely causes are windscreen and sunroofs.
Good luck !