CORSA-D not starting

**gerriecpt** · 13th March, 2019, 06:10 AM

Hi
I hope someone can help me as I am really stuck. I have a 2008 Corsa 1.4i sport 2-door. The car originally died while driving. It was taken to an auto electrician which I believe did more damage than good.

In any case I am now stuck with it. Originally the car did not crank at all and the engine check light flashed. I have discovered and fixed the following:
- Bad connection to BCM
- Got the security key for the car from the manufacturer. This key did not work on the IPC. I had to open the IPC and dump the EEPROM to obtain the correct key
- Reset BCM, ECM and IPC and re synced all to a point where the engine check light does not flash anymore and the engine cranks
- Opened the ECU for inspection. No water damage and now broken wires any visual damage
- Used an oscilloscope to diagnose the electrical interface on the high speed CAN bus. There is no issue with the CAN electrical waveform.

The car still does not start and the outstanding issues are:
- The ECU relay does not come on. The relay works and if bypassed the ECU voltage shows correctly on the diagnostics
- The fuel relay never comes on. With OP-COM this can be manually switched on, but the relay does not engaged. Like the ECU relay, this can also be bypassed in which case the pump works.
- The following error codes are still shown: U2107-71 Invalid signal from BCM; B3057-00 Security code not programmed; U2107-71 Invalid data from BCM; B3902-00 wrong immobiliser identifier received; U2105-00 Invalid data from ECM; Wrong environment identifier received IPC

Any help would be greatly appreciated.

**unu** · 13th March, 2019, 06:32 AM

what engine ecu have you there ?

looking onto your DTC's (error codes are still shown: U2107-71 Invalid signal from BCM; B3057-00 Security code not programmed; U2107-71 Invalid data from BCM; B3902-00 wrong immobiliser identifier received; U2105-00 Invalid data from ECM; Wrong environment identifier received IPC )
I believe you didn't reprogramm correctly these modules.
Reset all and do it again.

Good luck !

**gerriecpt** · 13th March, 2019, 06:59 AM

The IPC, BCM and ECU can be reset.
The IPC and BCM can also be reprogrammed (I cant remember if the ECU can also be reprogrammed), through there menus
The Immobiliser can also then program the BCM and ECU.

I have read somewhere that both the ECU and BCM should not be reset at the same time.

Do you know what is the sequence of reprogramming everything? Should one reset them in a specific sequence and then reprogram them in a certain sequence?

**Bllinda** · 13th March, 2019, 07:41 AM

I think it will be very difficult to do it with op-com ....

**gerriecpt** · 13th March, 2019, 07:59 AM

Why?

What is the alternative?

**Bllinda** · 13th March, 2019, 08:28 AM

It's easier with techII ....

**comizelu** · 13th March, 2019, 10:02 AM

Try reset and reprogram all units including airbag ECU.one by one...
Reprogram keys at last.
If you will still have error for keys program a new one.

Sent from my MI MAX 3 using Tapatalk

**gerriecpt** · 14th March, 2019, 05:33 AM

Good morning.
So last night I did all the combinations I can think of. At this stage all the units are reset and reprogrammed. All units share the same security key (this was not the case before).
I was very optimistic about this, but it did not work.

I still have an issue. U2107-71 Invalid data from BCM and invalid signal from BCM. This must be some configuration issue since I can successfully talk to the BCM, ECU, IPC and SDM.

When I try to start it, there are some sensor codes also like the throttle position sensor and the throttle body circuit.

How do I determine if I need to replace the BCU?

**comizelu** · 14th March, 2019, 07:01 AM

After reset bcm you need to wait 10-15mins with ignition off..
Then reprogram bcm and others

Sent from my MI MAX 3 using Tapatalk

**Bllinda** · 14th March, 2019, 08:49 AM

Look .... ....

Originally Posted by omglol

Let's first start with info about the car:

Opel Corsa D, make year 2009
engine: Z14XEP, 66kW, 1364 ccm
VIN: W0L0SDL0896046608

Originally Posted by perovuk

opcom is ok for this car if u have pin code,try this metod
1reset ipc
2 reset bcm
3 reprogramme original key
4 reset airbag module

5 turned off ignition for 30 seconds
6 programme the ipc
7 programme the bcm
8 programme the airbag module
9 read and clear all fault codes
10 ignition off 30 seconds
11 START CAR

Originally Posted by Liteace

Any help. Can pins on ECU's

Engine, pins 11 & 43
Abs pins 14, 15, 26, 27
Airbag contol unit, pins 35 & 36
Radio, pins 9 & 10
Info display, pins 17, 18, 19, 20, 22, 23, 25
Park pilot, pin 6