97 850 with chipped key ignition?

[scot850]

We did not get chipped keys here until 1999. Before that there was basic system where if the alarm was triggered it would not start unless you reset via the driver's door lock. So no antennas until 99.

The 06 XC70 we have has had the issue with the transponder chips failing. Had to get replacements from China and have them reprogrammed by Volvo with a new fob to get the code they need for programming. So now we have 3 good keys/fobs.

Neil,

[xanthefin]

We did not get chipped keys here until 1999. Before that there was basic system where if the alarm was triggered it would not start unless you reset via the driver's door lock. So no antennas until 99.

The 06 XC70 we have has had the issue with the transponder chips failing. Had to get replacements from China and have them reprogrammed by Volvo with a new fob to get the code they need for programming. So now we have 3 good keys/fobs.

Neil,

I started dig deeper this USA having no chips.. you are correct yes.

I did hit in Volvo tech tips of "Volvo TechTips is a publication sponsored by Volvo Car USA LLC."

"Volvo started using laser cut keys back in 1992, but the keys did not have immobilizer communication chips inside until 1999. They also started offering a keyless entry remote as an option in 1992."

--

"In 1999, Volvo upped the ante for car thieves, with the addition of the immobilizer and chipped keys that communicate with the immobilizer through an antenna ring on the ignition lock."


Interesting.. i must belief this then sorry i just think its absurd why this was done as like this just for USA market (and why Volvo techtips saying like Volvo never used chips.. when i have in my hands one from 1997 and they didn't specify its just being USA market thing.. nevermind its land of freedom eagles thing i guess ).

I guess Alarm system was just there then used no IMMO and as you mentioned no antenna even. As on 850 models Alarm and IMMO is totally different systems and they work not together on 850 but separated, only on V70 IMMO3 was wired and can send signal to VGLA (Alarm) system to have a no crank additionally like abscate told. I just talk too much of IMMO in detailed now then when there would be one.


And so final note.. if there is no IMMO there is no anything or anyone to say ECM / ECU to kill the engine in 2 seconds as far i know on these Volvos.

[xanthefin]

Oh i go bed i just did re read thread and now understood you were looking in Canada model. I added mention for US models if no IMMO then no antenna of course and there is no system talking to ECM/ECU to kill the engine (shut down, all) after or inside 2 seconds after you turn the key to start.


If Canada has like EU has had IMMO and he put V70 soft (knee hurt prevention) antenna on 850 IMMO2 system that would explain why not start alone as Volvo itself says you should not do it. Its different (850 has 8 Ohm and V70 5 Ohm.. but honestly you should use LC tester to measure correctly the antenna differences as these resistance measurements are just rough and made for easy mechanic with multimeters) as LC circuit wont work and cannot read the chip correctly just.
These IMMO2 and 3 boxes are tuned differently inside boxes as they have different resistors in antenna circuit and so they are "tuned" different ways. You gonna break it (well not damage breaking it.. just making it poorly functioning).

IMMO is located here on 850's if there is one (under steering wheel column, annoying location like almost behind dashboard/instrument cluster slightly below that level.. that thing with weeping needles which shows how slow you going).

[misha]

As far as i know...on '97 850 with immo2 box you only need immo2box with same part number as old one and matching chipped key.
Ecu isn't coded...it just needs a "green light" from immobiliser.

My immo2box have some sort of fault since i can't communicate with it and also can't establish communication with ecu to read and clear the codes.
"K" line on '97 850 for communication with ecu goes through immo2 box.

I hope that i will confirm this as soon as i get some time to replace immo2 box with it's matching chipped key.

Ecu is coded only from introduction of s,v70 from '97 for EU market and from these models you need ecu,immo box and matching chipped keys while for 850 you only need immo2 box with matching keys.

'99 and '00 are in CAN protocol and they are totally different.

[scot850]

I think you misunderstood what I am trying to say misha. The current owner thinks the previous owner for some reason fitted a 99- ignition barrel. What we don't know is if he did any modifications to the wiring connections to the electrical part, or if he used the -98 electrical portion as was originally fitted assuming it connect to a mechanical portion of the 99-.

If he did that then all should be ok to my non-electrical minded brain cell! As the mechanical section has no control other than allowing the key to work. IF, he used the 99- electrical portion and tried to modify it then I was asking if it would work. Without diagrams and the car in front of me I can't check if the connectors and pin-outs are the same. Again, if the same wiring is used then again it should be ok.

My concern is if the electrical system at the key needs a chipped key signal to allow the car to run then the car won't run without it as there is no antenna or programmed key and even the IMMO2? box does not even generate a signal.

My knowledge on the IMMO system is limited, and adding to the issue is the car is over 650km and a 7.5 hour drive from here each way!

Neil.

[xanthefin]

As far as i know...on '97 850 with immo2 box you only need immo2box with same part number as old one and matching chipped key.
Ecu isn't coded...it just needs a "green light" from immobiliser.

My immo2box have some sort of fault since i can't communicate with it and also can't establish communication with ecu to read and clear the codes.
"K" line on '97 850 for communication with ecu goes through immo2 box.

I hope that i will confirm this as soon as i get some time to replace immo2 box with it's matching chipped key.

Ecu is coded only from introduction of s,v70 from '97 for EU market and from these models you need ecu,immo box and matching chipped keys while for 850 you only need immo2 box with matching keys.

'99 and '00 are in CAN protocol and they are totally different.

Misha i would check Relay condition or your IMMO box is just corrupted totally. It happens. Each Ignition Relays clicks to open communication so it has private moment with ECM for a second so you can't check without jumper wires via OBDII port their talking.

I think you misunderstood what I am trying to say misha. The current owner thinks the previous owner for some reason fitted a 99- ignition barrel. What we don't know is if he did any modifications to the wiring connections to the electrical part, or if he used the -98 electrical portion as was originally fitted assuming it connect to a mechanical portion of the 99-.

If he did that then all should be ok to my non-electrical minded brain cell! As the mechanical section has no control other than allowing the key to work. IF, he used the 99- electrical portion and tried to modify it then I was asking if it would work. Without diagrams and the car in front of me I can't check if the connectors and pin-outs are the same. Again, if the same wiring is used then again it should be ok.

My concern is if the electrical system at the key needs a chipped key signal to allow the car to run then the car won't run without it as there is no antenna or programmed key and even the IMMO2? box does not even generate a signal.

My knowledge on the IMMO system is limited, and adding to the issue is the car is over 650km and a 7.5 hour drive from here each way!

Neil.

Electronically 96 up to 00 years IMMO2 and 3 are pin compatible between each others on 850 and V70 models (SV40 too) as all uses K line and all are in same places and connector is the same even IMMO is working same principals. CAN Bus was in parallel of Kline there in years 99 and 00 for example ECM.
I know sync bytes example from ME7 and between IMMO3 and i can re sync them manually by hand.

There was though VIM014 variation which used different protocol slightly in communication like which can be found on 1998 S40 with Siemens ECM (MIN coded too -- from my S40 having example one).


Volvo only started using VGLA communication (just mere low and high signal .. they actually cheating as this output is another LED light output made by Bosch already for IMMO2 systems but Volvo didn't use either one of them) and LED indicator on V70 and slight software update in IMMO3 as later years.


Only Chips are incompatible and antenna between these systems and if you put IMMO3 where was dummy IMMO2 which didn't check Engine MIN code then result is no go as there is as far i know there is no factory made dummy version of the IMMO3 boxes even on Fenix5 ECMs as they have MIN code programmed in too now and you cannot even mix them even with same software number as there is some extra checks (i tried). Plus there is variations of IMMO3 boxes (thats why example Misha saying to use same pn code IMMO is good idea always) which some has Relay 1 and some has both (R1 and R2) and some has none.