XF cranks but no start / ERRORS --> U0167-00 / B1B33-87 / B100D-87

XF 3.0D X250 of early 2010

Dear Gentlemen,

I (also, like many) have this often seen combination of errors:

B100D-87 VIM Steering lock authorization

B1B33-87 IPC Target identification transfer

U0167-00 PCM Loss of communications with the immobilizer control module


1)
Some of you just needed to disconnect the battery and it was all fine, again.

{I am not that lucky... )



the engine will just "not proceed" (Rolls Royce jargon for = it won't work !)

2)
I also read, that it could be the CAN bus connection behind / next to the instrument cluster...
(article by Garagewire:

https://garagewire.co.uk/news/compan...ck-fault-code/

I looked at the connections and they look fine, but I need to yet measure them


3)
I have had SDD run through all, also immoblizer reset etc., but all no go

Running the recommendations, all works out.


-->
Do you gentlemen maybe have a few more ideas what it could be ?


The above error combination seems to ocurr quite often.

I have had the CJB checked = it is fine.
No water ingress. Coding on it is fine.

I can read the VIN via SDD.

I have cleaned as many GND points as I could find

The battery is brand new and definitely ok

The engine will not start as rail pressure does not build up.
{Diesel is fine / pump is fine / rail pressure sensor is new, rail pressure control valve is new, and metering unit to pump is 50% on without power, so that cannot be the fault, either (I have had it out and blew through - no blockage}


Thank you VERY MUCH in advance for all your ideas,

Rud

 

Not seen this myself but looking at the codes and your description it seems there could be a bunch of things going on.

Assuming your battery and battery connections are good then there seems to be a problem with the passive anti-theft system (PATS)

DTC B1B3387 means the IPC sent a "PATS to idle" message on the CAN bus but failed to receive an OK message back within 2 seconds (usually the deactivate PATS sequence takes 400ms), so PATS deactivation process did not complete properly.
DTC B100D87 is related to the steering column lock, it failed to send an authorisation response during the unlock cycle.
DTC U016700 is also an authorisation timeout message.

Something in your car is not happy.

The odd thing is that if PATS doesn't deactivate it should result in a "no crank" scenario, not a "crank but no start" one. However it is known to be flaky, or possibly there's two different faults occurring.

Things to check are voltage and CAN connections at the IPC, steering column lock and immobilizer module are good and working. I'm wondering whether there is a fault in the steering lock, the steering column lock isn't shown in the diagram for PATS system but it does mention that unless its sends its authorised/I'm unlocked message the car won't start. I'm taking that to mean its only connected to the IPC via the CAN.

I'm also wondering if the IPC message is symptom of the other two DTCs, if those other errors occurred the IPC wouldn't receive the "OK" message and therefore raise the DTC.

 

Hi fivel,

thank you very much for your very good and useful hints !

Indeed, it is "flaky".

I have had, in red "PATS" being displayed on the IPC Display.

And I also have that I can only crank twice , usually, but sometimes 3 - 4 times, and then no crank.

And yes, the steering lock does not work !

I have had myself locked in and person went away with the key, but the steering lock did not do its job (did not lock).

I did mess around quite a bit with SDD and there was one occasion where I did get the steering lock to whirr...but only once.

All very flaky as you say.

I have seen this combination (those 3 errors) often.

I shall do what you say, i.e. measure the CAN bus, that seems logical.

Also, I have been told to do a "steering lock authorization process" using SDD in the Service Menue.

I just cannot seem to find this in there, though (I have SDD version 161, so quite a late version).

I wish Citroen had not just provided the good Diesel engine but also the complete electronics on this car, and that Jaguar had only provided the invoice (that is what they are good at...)

Thank you again very much for your valued ideas...

 

Hello,

I fixed the errors using JLR SDD.

Still no start...

I have noticed: no rail pressure !
I replaced the VCM Volume Control Metering valve, also the rail pressure control valve and just to be safe: also the rail pressure sensor.

My thought is now: maybe CKP ( Crank Position Sensor).

This is mentioned in the trouble-shooting manual.

Has anybody replaced this themselves.

Is that possible without a ramp/ lift as it seems to be at a really horrible-to-get-to position.

I see rpm indicated on my OBD tester when cranking, but it jumps around as much as 30% which may mean that sensor has a problem.

 

You say the pump is fine but you have no rail pressure?
The electric pump in the tank feeds the high pressure gear driven fuel pumps. Are you sure that one is working?
.
.
.

 

If it's cranking but not starting, all manner of red-herring error messages can be thrown up as a result of the electrical load of several seconds of cranking. I'd be checking for a fuel problem, i.e.-fuel in tank, blocked filter, low pressure pump, high-pressure pump.

 

Use the data logger to check the values ​​of the sensors
youtube

 

If cranking without starting check with iid tool or similar;
Engine speed, should be 200 ish, that will confirm crankshaft sensor working.
Fuel pressure should be in the thousands of psi, 200 ish is nowhere near enough. If low is probably a worn high pressure pump. Normally you can get around this by using a very small amount of easy start. Once engine runs there will be no more problems.

 

If rpm is jumpy check the wiring on the cranksensor, I have had problems with the insulation breaking down causing a no start.