Peugeot 206 magnetti marelli IAW 1AP.80

**peugeot** · 18th October, 2012, 09:43 PM

Hi guys ,
Anyone know what common areas in this ecu fail ?
Canott communicate with ecu .Engine runs fine with swapped immo off ecu from another car . No earth out to double relay supplied by ecu ,so no power to coil and fuel pump etc. Shame to bin it if it was a relatively easy repair and problem is customer is withoiut much money :[

Many thanks

**electrones** · 19th October, 2012, 01:10 AM

Hi friend

Verify "corrosion" power strip wiring, fuse box located between the engine compartment and relay module management system of the engine. good luck, -_-

**Zmann** · 19th October, 2012, 01:25 AM

HI, didn't he say that the engine run fine with another ecu. the problem should be in the ecu itself.

my little info, must be a small plcc of udk2559 which control double relay.

**peugeot** · 19th October, 2012, 05:10 PM

Originally Posted by Zmann

HI, didn't he say that the engine run fine with another ecu. the problem should be in the ecu itself.

my little info, must be a small plcc of udk2559 which control double relay.

Yes engine runs perfectly with swapped ecu , Many thanks Zmann I shall have a small investigation and possibly try to source one from my large collection of broken ecus over the years . It is such a pity for customer to have to pay maybe 700 ish euro for replacement ecu when theirs could be repaired quite cheaply and if it didn't work ,well at least we tried and maybe learnt something along the way.
I have done some pcb soldering in the past and have some tools for programming namely mpps v12 and kwp2000 Bdm 100 on order . I'm fairly sure that these will be not much good with this ecu and will probably require some form of desolder and programmer if I wanted to try to immo off on second hand unit ?? Anyone recommendations would be welcome .

Anyway thanks guys for a great forum and sharing your valuable information.

**peugeot** · 20th October, 2012, 08:23 PM

Originally Posted by peugeot

Yes engine runs perfectly with swapped ecu , Many thanks Zmann I shall have a small investigation and possibly try to source one from my large collection of broken ecus over the years . It is such a pity for customer to have to pay maybe 700 ish euro for replacement ecu when theirs could be repaired quite cheaply and if it didn't work ,well at least we tried and maybe learnt something along the way.
I have done some pcb soldering in the past and have some tools for programming namely mpps v12 and kwp2000 Bdm 100 on order . I'm fairly sure that these will be not much good with this ecu and will probably require some form of desolder and programmer if I wanted to try to immo off on second hand unit ?? Anyone recommendations would be welcome .

Anyway thanks guys for a great forum and sharing your valuable information.

Anyone else have any input or comment ?

**Zmann** · 21st October, 2012, 02:22 AM

I don't think any of your programmer can do this ecu.

two solutions to immo off this monster
- clock file, find it and the instruction here on dk, never try
- proper programmer to deal with TMS374, the affordable one is xprog-m (clone)

**jnoroeste** · 21st October, 2012, 12:52 PM

Hi M8,

It?s not possible comunicate because comunication goes through abs unit.

Chech fuses an try comunication to abs unit.

Regards.

**peugeot** · 21st October, 2012, 04:52 PM

Originally Posted by jnoroeste

Hi M8,

It?s not possible comunicate because comunication goes through abs unit.

Chech fuses an try comunication to abs unit.

Regards.

Thanks Jnoroeste , Year 2000 car with no abs .Its definetely fault in ecu .I also swapped this ecu into another car and no comms there either . Looks possible to be a plcc problem as poster above says .Thanks for your input also .

**autorisp** · 21st October, 2012, 05:47 PM

If I remember correctly if the immobilizer system is not working properly the control unit not communicates with the diagnosis and no control the pump relay and so on.
Have you tried doing immo off on original ECU?

**peugeot** · 21st October, 2012, 09:25 PM

Originally Posted by autorisp

If I remember correctly if the immobilizer system is not working properly the control unit not communicates with the diagnosis and no control the pump relay and so on.
Have you tried doing immo off on original ECU?

No problem in bsi transmitting unlock code incl. keys are learnt and transponder marker code recoginsed.
Van wiring checked between bsi and ecu all good .
Defo internal ecu fault .(new double relay also fitted

)
Thanks for the reply anyway . Was mostly wondering what , inside this ecu, causes this anomaly.

**Zmann** · 22nd October, 2012, 02:10 AM

What the tool do you have, Lexia/PPS?

Possibily your ECU is internally serious damage.
But better checking the K-line and L-line from diagnosis plug back to the ECU first. What's the plug...

OBD 16 pin plug: OBD Pin7 to ECU pin31 K-line, OBD Pin15 to ECU pin12 L-line

If it's the two pin plug, two of them are K and L (and if Lexia you need the specially provided cable with battery clips)

**peugeot** · 22nd October, 2012, 07:05 PM

Originally Posted by Zmann

What the tool do you have, Lexia/PPS?

Possibily your ECU is internally serious damage.
But better checking the K-line and L-line from diagnosis plug back to the ECU first. What's the plug...

OBD 16 pin plug: OBD Pin7 to ECU pin31 K-line, OBD Pin15 to ECU pin12 L-line

If it's the two pin plug, two of them are K and L (and if Lexia you need the specially provided cable with battery clips)

We have genuine diagbox , its 16 way connector . Am able to comm with swapped ecu , read faults etc so no problem in K line. Time for customer to bite the bullett and buy new ecu .
Thanks for all your replies !