Peugeot 407 2.0 RHH BSI failure when turning,no start

[Stanoyugi]

Hello,
I have a problem with my 407 ph2 with RHH engine. it cranks but not starting. No fault code logged on Diagbox.
if you check on BSI standard parameters when cranking, if immediately displays failure on all parameters as shown on the attached pictures.
i have tried changing a complete set of BSI, ECU Key from a similar car, but still behaves the same. Yet this sets works well on the donor car.
i have tried an ECU with immo off from Hdituning but nothings seem to work on the car.
i believe it is a wiring problem that seems i cant figure out. i have check onthe engine start diagram ,bsm connection to the bsi and all working are connected correctly.
My vin is VF3**************[VIN obfuscated, can be read by forum staff].
Fault are U1218, F5FF, P0928

[GiveMeABreak]

I think your issue is with the Auto Gearbox. According to this the shift lock is not working, which can lead to prevention of the engine starting. Faults are listed below for you.

The other thing is the outside temperature sensor is faulty. Believe it or not this little sensor is used by systems on the car to determine the outside temperature and can affect systems like the Air Conditioning / Stop Start and other systems. The other thing to check is the battery voltage. if you have an old battery and it is under-voltage, then it can stop the ECUs from operating.

Ignore the F5FF one for now, that's a BSI one that is the Unexpected re-initialisation fault coming from the BSI: Not characterised. I'd focus on the other issues first.

Fault Code:	P0928
Description of Fault:	Fault on the lever locking actuator circuit (shift-lock): Open circuit or short circuit to earth. Detection of a voltage of 0 V for 0,5 seconds on the shift lock solenoid. The time of appearance of the fault code is 1s. The following conditions have to be met: - Ignition switched on - No COMELEC ECU (*) Technical precision on the context of appearance of the fault code: The following conditions have to be met: - The system should not be in down-grade mode - Battery voltage between 10,2 and 15,5 V - No fault codes found: U1003 - U1108
Conditions for Fault to clear:	-
Downgrade Modes whilst Fault is active:	No locking of the lever in P "SERVICE" warning lamp Sport warning lamp - Snow warning lamp Automatic or 6-speed piloted manual gearbox warning lamps (Orange PRND triangle) Display of a "-" on the fascia panel
Symptoms:	Difficult/impossible to change gear
Suspect Areas:	Shift lock solenoid Engine compartment main electrical harness Automatic transmission control unit

U1218: Fault in the outside air temperature received on the CAN network (Engine ECU): Value received incorrect

[willnz]

When cranking, what live readings does Diagbox give for rpm, syncronisation and diesel pump pressure?

[wheeler]

I cant imagine how a shift lock solenoid fault would stop the car starting.

[Stanoyugi]

The live data for Rpm 300, synchronization Yes, and diesel pump pressure is at 90. I believe this is okay since the BSI has not allowed the ECU to start the car.
So yesterday, i was checking on the engine and gearbox harness, and afterwards i got communication error with BSI on engine ECU and gearbox ECU. Meaning i could be having wiring issues on the harness. Probably broken cables on the harness. Can someone share wiring diagram both engine ECU and gearbox ECU with connection to various sensor.

[wheeler]

Here are the diagrams, Had to do the injection diagram in 2 halfs to make it readable.

[Stanoyugi]

Thanks for the diagrams but they are not matching. if you check on the delphi 3.5 ECU terminal, it doesn't have 32V NR port.
On the injection diagram, what is item 71..... since i cannot decode where the Canbus line is connecting to from BSI.

[Stanoyugi]

Thanks for the diagrams but they are not matching. if you check on the delphi 3.5 ECU terminal, it doesn't have 32V NR port.
On the injection diagram, what is item 71..... since i cannot decode where the Canbus line is connecting to from BSI.

[wheeler]

71 is the electric power steering.
This is the diagram from the VIN. How many plugs are on your ECU & how many channels are they?
This one is a 53 way Black, 53 way Brown & 48 way Grey

[Stanoyugi]

The delphi 3.5 has 53black,53 brown and 48 grey.
I had asked the question in relation gearbox circuit where the canbus terminal is different from injection circuit.
I will revert with how it will go.

[wheeler]

I see what you are saying now. The injection diagram appears to be correct? but the gearbox diagram doesn’t match with the injection diagram & whats on your car?
Again this is the diagram listed for your VIN but its not uncommon to get mistakes in the original dealer documentation.

[Stanoyugi]

I did manage to clear the error on the ecu. But my biggest headache is F5FF.
UNEXPECTED RE-intialisation fault coming from Bsi.
Despite swapping with whole set from a running car. I still have the same error.
Any suggestion on what to look at?

[Stanoyugi]

Is there a BSI wiring circuit similar to the injection circuit shared?

[Stanoyugi]

I still cant figure out why the BSI looses communication with the ECU during start request. During this time you cannot read any parameters via the BSI. All values changes to failure or ??.
Whereas you can read the engine parameter, fuel pressure,engine speed, crank synchronisation.
Could it be the ABS Connector acting up on the car? Or maybe some cut wiring on the line?

[Stanoyugi]

Under ECU Fuel circuit information,
The coolant temp is 21degrees whereas Fuel temperature is 205 degrees for a car that is parked for 2 Months. Could this be a reason for the car not to start?
Where is the fuel temperature located on the car?