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Michael
Michael, ASE Certified Technician
Category: Volvo
Satisfied Customers: 905
Experience:  Volvo Master technician, ASE Master, EPA 608&609 certified
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my 2000 s70 continues to show these dtc codes p1670, p1671,

Customer Question

my 2000 s70 continues to show these dtc codes p1670, p1671, p1672, I cant find them anywhere. what are they?
Submitted: 7 years ago.
Category: Volvo
Expert:  Michael replied 7 years ago.
Hello,

Theses codes are for the immobilizer communication. The antenna ring is the most common failure. This is also all you can replace with out going to the dealer.

I would suggest replacing the antenna ring your self and clear out the codes.
The antenna ring is located on the end of the ignition switch. It is a fairly cheap part. The plastic cover around the steering column needs to be removed. There are 3 T-25 screws on the bottom side.


Let me know if you need more help.