Transponder chip ID46 / PCF7961 Chip. Frequency 433MHz / 434MHz. For Citroen C1 C2 C3 C4. For Citroen C1 (2001 - 2014). For Citroen C2 (2002 - 2006). For Citroen C4 (2004–2010). For Citroen Xsara Picasso.
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