Volkswagen Golf 2013 Quick Reference Specification Book page 244

DTC
U0121 Lost Communication With
Anti-Lock Brake System
(ABS) Control Module
U0146 Lost Communication With
Gateway "A"
U0155 Lost Communication With
Instrument Panel Cluster
(IPC) Control Module
U0302 Software Incompatibility with
Transmission Control Module
U0402 Invalid Data Received From
Gear Shift Control Module A
U0415 Invalid Data Received From
Anti-Lock Brake System
Control Module
U0423 Invalid Data Received From
Instrument Panel Cluster
Control Module
U1024 Communications Bus Fault,
IPC to ECU
232 VW Golf & GTI Quick Reference Specification Book • September 2012
Error Message Malfunction Criteria and
Threshold Value
No messages received from
ABS module
Fault message from gateway
= true
No messages received from
Instrument cluster
Wrong TCM messages
received.
Wrong TCM messages
received.
Implausible ABS messages
sent. Veh speed > 320 km/h or
missing vehicle speed data.
Error message sent from
Instrument Panel Cluster to
ECU
Error message sent from
instrument cluster to ECU