Opel — U2102-00 [patched]

Here’s a useful, technician-focused write-up for . Opel U2102-00 – Diagnostic & Repair Guide What is U2102-00? U2102-00 indicates that the Engine Control Module (ECM) or Body Control Module (BCM) has lost CAN bus communication with the Steering Column Lock Module (SCL) . The -00 suffix means no additional fault subtype – a pure communication loss.

Replace SCL module and perform immobilizer relearn. opel u2102-00