v70 is immobalized

[bigern79]

Hi, sorry to dig up an old post, but I’m having this same issue in my 2006 V70R with a manual transmission. I have replaced the immobilizer antenna with a new one. All my connections look fine. I haven’t found any signs of corrosion or fraying. I have sent my CEM and ECM to Xemodex, who could not find any faults or issues. Here is a link to the faults I’m seeing in VIDA:



Xemodex feels there is some other fault/disconnect in the network, but I’m at a loss on what to look for. The car currently will engage the starter motor, but will not send fuel. Any thoughts/ideas are greatly appreciated!

[jonesg]

Hi, sorry to dig up an old post, but I’m having this same issue in my 2006 V70R with a manual transmission. I have replaced the immobilizer antenna with a new one. All my connections look fine. I haven’t found any signs of corrosion or fraying. I have sent my CEM and ECM to Xemodex, who could not find any faults or issues. Here is a link to the faults I’m seeing in VIDA:



Xemodex feels there is some other fault/disconnect in the network, but I’m at a loss on what to look for. The car currently will engage the starter motor, but will not send fuel. Any thoughts/ideas are greatly appreciated!

a couple of common denominators are ignition switch, the elec part that plugs into the ignition lock.

and the ecm socket contacts.

and power feed at the fuel pump is another one I'd look at.

[oragex]

How did it all started ? There's so many possibilities. See above, may also want to look at the DEM and PEM for corrosion

[bigern79]

How did it all started ? There's so many possibilities. See above, may also want to look at the DEM and PEM for corrosion

Here is the backstory, copied from another forum post:

In short, I have a 2006 V70R that was swapped to an M66 by the previous owner. After purchasing, I had Hilton Tuning program the CEM to complete the conversion. A benefit of this was that I could finally remove the TCM module which was just kind of sitting in the engine bay. All has been well for about 3 weeks, but a few days ago the car lost power completely out of the blue after taking a right turn. The dash showed "Immobilizer See Manual" and "Anti-Skid Temporarily Disabled". At that point, the car's starter was engaging, but fuel was cut off.

I tried the "lock/unlock doors 5 times" trick, as well as engaging the car alarm, but neither helped. Eventually I disconnected the battery, let it sit for 5 minutes, and then it fired up just fine. I kind of thought it was a fluke of some type.

Later that night, the same thing happened while on the freeway. I was on an on-ramp looping to the right, and as the car straightened out, it died again. This time I did not disconnect the battery (since I didn't learn my lesson and didn't bring any tools). After a while, it started again somehow.

I did some reading, and decided that replacing the immobilizer antenna was probably the first thing to try. Car still died again later the next day after a right turn (and after driving around all day no problem). This time I had my other key with me, but it did not work either. Disconnect battery, wait 5 minutes, car started up. I drove it home and it has been sitting a few days, as i can't start it no matter what I do now.

Things I've tried:

Replaced immobilizer antenna
Tried spare key
Checked power connections at starter (even though starter is fine)
Pulled all cables from CEM both top and bottom to check for corrosion (everything is super clean, cover was sealed tight with no signs of leaking)
Pulled ECM, checked wiring, cleaned thoroughly with contact cleaner
Re-repaired a sloppy cut wire on my TCM
Re-installed TCM
Had Xemodex check the ECM and CEM - both had no faults

The most recent repair I made prior to this was replacing the ABS pump motor (which is an old fault that I forgot to clear in the VIDA list above). I also replaced the coils. Again, the car ran great for about a week after this. The battery and starter are only a couple of months old.

Hope that helps, appreciate all the help from this group!

[jonesg]

you would not go far wrong putting vida on it .

It should show when and where any codes are set, under what conditions.
drivetrain is no longer original, its above my security clearance.

[bigern79]

you would not go far wrong putting vida on it .

It should show when and where any codes are set, under what conditions.
drivetrain is no longer original, its above my security clearance.

Thanks. The VIDA codes are posted above in my first response. I’m going to clear them tonight, try to start again, and then run VIDA again.

[bigern79]

So last night I re-installed my CEM and ECM. I also checked the suspension, coils, and everything I could find in the engine bay for corrosion or frayed wires. I opened the casing along the back of the engine bay to examine the wiring going to the ECM. Checked all the grounds I could find. I could not find anything wrong. I also ensured the battery was charged completely.

I cleared all the existing faults in VIDA and ran it again. The results were quite ugly:







I'm at a complete loss. I checked that everything was reconnected correctly, and I don't see any issues. There's clearly a major communication problem here. It might be time to tow her to a shop.

[jonesg]

It looks like a main harness fault.
you could try driving around with vida running to monitor the system real time.

when I had ecm faults all over the car it turned out to be the cooling fan for the ecm box, problem was the fuse .

[bigern79]

It looks like a main harness fault.
you could try driving around with vida running to monitor the system real time.

when I had ecm faults all over the car it turned out to be the cooling fan for the ecm box, problem was the fuse .

Unfortunately I can’t get the car to start. Starter motor engages, but no fuel (probably due to the immobilizer cutoff).

[oragex]

May check the ignition switch connection to the ignition barrel (not the antenna) - try also jiggle the key in POS II . May also check the DEM (AWD module) for corrosion but being Seattle there shouldn't me much corrosion. I'm also thinking perhaps a corrupted CEM software ? Member yagger here on forum can connect with your CEM remotely, he seems good with module programming, this is his blog https://translate.google.by/translate?s ... t=&act=url