Zafira A no comunication with all ecus

[ruffles1986]

Hi mates, i have a Zafira A from '04 ,the car was crashed and the dash was changed. I not had comunication with any ecu of car, i check all Gnd points, power supply in ecus, and after igniton supply and all was ok. (I check also DLC)
Well i disconnected the engine cooling module, and then i have communication with all modules in pin 12 K-line. (Airbag, Instrument,Central door lock....)
But i continues without having comunication on pin 7. (Ecu, abs, immo)
I think ecu is ok because when i turn key to start the rpm go up in instrument... but i don't know if others modules are working.

Any have a wiring driagram for check this from pin7 of DLC to modules?

[Faraday]

if immo faulty no comm with other modules

[ruffles1986]

if immo faulty no comm with other modules

I tested with two immo moudeles with same reference but i continues without comunication.... what order have from DLC? dlc->immo->Ecu->Abs??->power steering??->

[Faraday]

I had few opels with no comm on pin 7 in all case it was immo module faulty. It is little tricky because in immo module depends on year communication is on different PINs so if you replace it it have to have same nr.

[Faraday]

immo pinout


pin2 instrument
pin4 GND
pin5 ignition voltage
pin6- DLC pin 7
pin7- ecu W-line
pin9 constant voltage

[Meat-Head]

Remove radio incase it shorted.
check obd plug not opened out on tge pins

[vladanr]

try to disconnect immo and bridge wire between pins 6 and 7 ,than you must have connection with engine ecu