General Information

Smart Key

B1625 ECM Communication Data Failure - General Information

Component Location





General Description

IPM communicates with ECM through the serial communication line. If ECM requests authentication from IPM after IG ON, IPM check authentication with transponder then, sends this signal to ECM whether authentication is O.K or not.
IPM is located inside of instrument panel, left knee of driver side. ECM is installed at near the brake booster, right side of engine room compartment.

DTC Description

IPM sets DTC B1625 if Data from ECM is error such as check sum error, Data Frame error, ID Unknown error, Data length error and Time out error.

DTC Detecting Condition





Diagnostic Circuit Diagram