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Marty, European Car Expert
Category: UK Car
Satisfied Customers: 394
Experience:  ASE & Bosch Certified Master Tech. Over 30 years experience.
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I have a Zafira `A' 2000 W 1.8 petrol automatic with only 7

Customer Question

I have a Zafira `A' 2000 W 1.8 petrol automatic with only 7 sockets wired in the 16 hole diagnostic port. I have so far tried four code readers and none will register. The last of these was a ALBABKC CAN OBD2/EOBD `VAUXHALL' fault code reader. All 4 register on other cars. The fault sign is on together with lumpy idling/stalling. Checked most sensors apart from O2 sensors. ?????
Submitted: 10 days ago.
Category: UK Car
Expert:  Gary replied 5 days ago.

Hi Ian,

Does any of the scan tools power up, or blank screen won't turn on?


Customer: replied 5 days ago.
They all power up but say not connected check ignition is on, when of of course it is on.Ian
Expert:  Gary replied 4 days ago.

Hi Ian,

I somehow knew you would say that.

So the 12v and ground is ok, but the serial data bus is down.

Can you communicate with any module or not?


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