Won't start so now on the back of a truck..
Won't start so now on the back of a truck..
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Discussion

DevilYellowCV8

Original Poster:

745 posts

247 months

Sunday 8th March 2009
quotequote all
Bit of a problem here, car started fine this morning, went into town, parked up for about an hour.

Came back, turned the key, engine turned-fired and died. My main thoughts were the immobilser. I have two, one factory and one aftermarket.

Called the AA who dutifully turned up. Tested the battery;said it was low on charge and did a boost on it. No good - same result.

Plugged in an OBD diagnostics box in and here's the boggling bit, it wouldn't / couldn't read anything. Now, fortunately, the AA chap know's about Monaro's as he's driven and worked on VXR 5.7's and 6.0's and he said that even though it's not a Euro car, his diagnostics box should still work on it.

His question to me was had the car been 're-programmed' in anyway and if so, had the programmer 'locked it'? Seemed a bit odd, but when the cars have WORTEC upgrades, are fault codes made inaccessable at all?

Car ended up on the back of a flat bed recovery truck this afternoon and taken to Slaters for them to have a poke about with in the morning but I hope not to get a phone call with the same problem the AA had.

One thing to add to this, can't praise the recovery truck guy (not AA) enough. He took a lot of care getting the car onto his truck making sure the winch cable didn't catch onthe bottom of the front bumper due to the lack of a suitable towing eye. Oh yes, the AA told him he was collecting a MOVANO van.....

Magic919

14,183 posts

225 months

Sunday 8th March 2009
quotequote all
You'd still be able to read DTCs even if the ECU was locked after the remap.

DevilYellowCV8

Original Poster:

745 posts

247 months

Sunday 8th March 2009
quotequote all
Thanks. Just worried I might get one of 'those' phonecalls from the garage wondering what I've been doing to the car.

monkfish1

12,247 posts

248 months

Sunday 8th March 2009
quotequote all
DevilYellowCV8 said:
Bit of a problem here, car started fine this morning, went into town, parked up for about an hour.

Came back, turned the key, engine turned-fired and died. My main thoughts were the immobilser. I have two, one factory and one aftermarket.

Called the AA who dutifully turned up. Tested the battery;said it was low on charge and did a boost on it. No good - same result.

Plugged in an OBD diagnostics box in and here's the boggling bit, it wouldn't / couldn't read anything. Now, fortunately, the AA chap know's about Monaro's as he's driven and worked on VXR 5.7's and 6.0's and he said that even though it's not a Euro car, his diagnostics box should still work on it.

His question to me was had the car been 're-programmed' in anyway and if so, had the programmer 'locked it'? Seemed a bit odd, but when the cars have WORTEC upgrades, are fault codes made inaccessable at all?

Car ended up on the back of a flat bed recovery truck this afternoon and taken to Slaters for them to have a poke about with in the morning but I hope not to get a phone call with the same problem the AA had.

One thing to add to this, can't praise the recovery truck guy (not AA) enough. He took a lot of care getting the car onto his truck making sure the winch cable didn't catch onthe bottom of the front bumper due to the lack of a suitable towing eye. Oh yes, the AA told him he was collecting a MOVANO van.....


The remap wiill not affect the abilty to interface with the car. The car however is not totally OBD2 compliant as i understand it. Some scanners on the market will not read monaros. I guess his was one of them? Or you may have an ECU problem though i doubt it. Slaters should have no problem connecting to it.

stevieturbo

17,968 posts

271 months

Sunday 8th March 2009
quotequote all
It seems the OBD format really isnt universal.

A friend recently came across the same with a Cadillac which wont communicate with his Snap On scanner....

slackalice

421 posts

255 months

Monday 9th March 2009
quotequote all
The OBD2 has CAN protocol, therefore you need a multi scanner reader.

ringram

14,701 posts

272 months

Monday 9th March 2009
quotequote all
Yes, OBDII can run over a number of different lower level protocols. Parallel, Serial etc. CAN is serial.
Older Monaro's were VPW, newer ones are CAN.

slackalice

421 posts

255 months

Monday 9th March 2009
quotequote all
slackalice said:
The OBD2 has CAN protocol, therefore you need a multi scanner reader.
Oh and one other thing it needs the ignition circuit on, so if the ignition fuse is blown? QED, well sometimes!

MyM8V8

9,468 posts

219 months

Monday 9th March 2009
quotequote all
Error $0280

ringram

14,701 posts

272 months

Monday 9th March 2009
quotequote all
I think thats the error you get when the ignition isnt turned on, or the scanner cant communicate with the ECU etc.
At least thats what happens to me with my scan tool smile

LawrenceF

163 posts

238 months

Tuesday 10th March 2009
quotequote all
On an LT1 thats normally a sign that it's not getting a VATS (Vehicle Anti Theft System) signal. It will start up fine, and then stop dead after a second or so. Try a spare key?

ringram

14,701 posts

272 months

Tuesday 10th March 2009
quotequote all
In which case his thoughts around the imobiliser could be correct.

LawrenceF

163 posts

238 months

Tuesday 10th March 2009
quotequote all
It'll be the factory immobiliser then if it has a VATS circuit, like I say, that's on an LT1, not an LS2.

DevilYellowCV8

Original Poster:

745 posts

247 months

Tuesday 10th March 2009
quotequote all
According to Slaters today. it looks as though it's something to do with the immobilser (aftermarket). They've got it started after quite a bit of fault code clearing etc. Needed BCM security code to finish it.

Not sure if it's the alarm key fob or the actual unit. So they've reset everything and will leave it overnight and start it in the morning using both the alarm key fob and override key. Fingers crossed it's just the fob and not a complete immoblilser unit.