This article show a procedures of how to use OBDSTAR X300 DP to read Citroen C4 pin code.Check below paragraphs to get more details.
Insert the key into the ignition.
Connect OBDSTAR Key Master DP to the Citroen C4 2015, tap “Diag Program”.
Tap “Citroen/ Peugeot”.
Next.
Turn the ignition on and off, then press “Enter” and then turn on the ignition switch.
Reading security code.
Read out the security code: AHPD.
Done.
OBDSTAR Key Master DP is really a nice tool to read out the pin code quickly.