U2109 Mismatch between the partial controlled-triggering request received over CAN from the BSI and the wired controlled-triggering command: Not characterised

Mismatch between the partial controlled-triggering request received over CAN from the BSI and the wired controlled-triggering command: Not characterised. The cited PSA workshop reference documents U2109 as "Mismatch between the partial controlled-triggering request received over CAN from the BSI and the wired controlled-triggering command: Not characterised" for the AM6/AT6 automatic gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models.

U2109 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.

Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U2109 is removable in your case.