262 VW Golf & GTI Quick Reference Specication Book • September 2012
DTC Error Message Malfunction Criteria and
Threshold Value
U0121 Lost Communication With
Anti-Lock Brake System
(ABS) Control Module
• No CAN messages received
U0146 Lost Communication With
Gateway “A”
•No CAN messages received
U0155 Lost Communication With
Instrument Panel Cluster
(IPC) Control Module
• No CAN messages received
U0302 Software Incompatibility with
Transmission Control Module
Manual transmission coded
ECM but automatic transmission
messages received from TCM
U0402 Invalid Data Received From
Transmission Control Module
• Implausible data message
received
U0415 Invalid Data Received From
Anti-Lock Brake System
Control Module
• Sensor signal failure
• None, or implausible
information
• CAN 1 VSS signal incorrect >
327.08 km/h
• No
U0422 Invalid Data Received From
Body Control Module
• Ambient temperature value
initialization = 00h
U0423 Invalid Data Received From
Instrument Panel Cluster
Control Module
• AAT sensor reading from
cluster to ECM implausible or
no message
U0447 Invalid Data Received From
Gateway Module
• CAN message incorrect
Fuel and Ratio Control Module
DTC Error Message Malfunction Criteria and
Threshold Value
P2101 Throttle Actuator Control
Motor Circuit Range/
Performance
• Duty cycle > 80%
• Deviation throttle value angles
vs calculated value 4 to 50%
• ECM driver = no fault
P2106 Throttle Actuator Control
System - Forced Limited
Power
• Internal check failure
P2279 Intake Air System Leak • Offset value throttle mass ow
> 13 kg/h