Help to troubleshoot factory remote engine start installation

TranHung

Member
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2015 Mazda CX5 2.0L AWD
Hi
I am writing to seek for your kind help to solve my problem of installing the factory remote engine start with part no. C930-V7-620 in 2015 Mazda CX-5 2.0 AWD.
I completed wiring and started to program the RES but failed then I repeated around 3 more times, I cannot remember exactly, but it still failed because I had performed wrong programing procedures. For the time being, whenever I start the registration procedures, the ECU always reponses with 2 long beeps and 4 short beeps and appears error code A1 on RES. So I am wondering whether or not the ECU was locked after multiple failed programming. So please help me trouble shoot this issue.
Thanks
 
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