OBDII socket issues

[minesapasty]

A week or so ago the Rear Brake Service light came on, but I was unable to get her into my tame mechanic, he was booked solid for 2 weeks (he is a great spannerer, so it isn't surprising). Anyway, so I persevered until my booked appointment was due. Unfortunately, on Saturday, the "Check Rear Brakes" came on, "Oh bugger I thought" and still a few days to go until my booked appointment, so I went on the hunt to see if I could find another local garage, and they were either too busy ( even though there wasn't a car on any of their ramps), or they were closed. I did a search on t'internet and found a mobile mecanicky bloke, he said that he could fit me in on Sunday (yesterday) morning, so the appointment was booked.
He duly turned up yesterday, with parts in hand and promptly changed the pads and the wear sensor, put the wheels back on and all was good....... until he came to plugging in his box of tricks to reset the service light, it wouldn't connect, the OBDII socket definitely worked when the A/C bloke was doing stuff a while ago, and I would guess when the car has been serviced, my usual mechanic would use it to reset service lights etc, so why would it not work now ?
I don't have a code reader yet, but as it would happen, I have already got one flying itself here via mail order from China or some place where it was made.
Does anyone have any ideas what would stop the blokes computer from connecting to my car, he checked it on his van and it connected straight away, so I would guess that says that his box of tricks is working properly...... any ideas on what to look for, maybe a pin pushed in or something, or would that be too simple ?

[andrewwynn]

It's fused. Same as front cig. Lighter maybe? I've had a couple cases of obd won't read and was the fuse


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[ard]

You had plenty of time to wait for your usual mechanic...FWIW.

[minesapasty]

Thanks for the reply, I have looked on the card that is stored in the slot by the rear fuse box, it shows fuse 130 and 131 as being OBD, but on checking, there isn't a fuse in position 130 in the fuse box, but there is a 5 Amp fuse in position 131. I have just checked this using my multimeter and the fuse is good.

[andrewwynn]

Fuse box in glove compartment.


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[minesapasty]

I have scanned the card that I have stored by the rear fuse box

[andrewwynn]

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[minesapasty]

On the e70, position 130 and 131 are on the fuse board in the rear of the car, mine doesnt have a 130, only a 131, a 5 amp

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This morning, I found that my time and date needed resetting and my mileage was at 0, so I guess that fuse 131 protects those circuits too.

[Qsilver7]

Wait...if you're suppose to have a 15 amp fuse in position 130...and your OBD II socket isn't working now...but it did work in the past...perhaps the reason its not working is because the fuse that powers it is missing.


Have you tried inserting a 15 amp fuse in position #130? (Or have you done this already and I missed it when reading through this thread?)

[minesapasty]

No, I have done nothing yet...... I just checked what I had compared to the fuse layout. As far as I am aware, no one has removed any fuse and 131 is definitely a 5 amp, just as it says on diagram. There are several fuse positions that dont have a fuse in, not just position 130.

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