SAE U0xxx-DTCs

2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION SAE U0xxx-DTCs
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2005 Volkswagen GTI, 2004 Volkswagen R32, 2004 Volkswagen Jetta, 2004 Volkswagen GTI, and 2003 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.

Network, electrical 

SAE- 
DTC 
DTC text  Corrective action 
U0001 High Speed CAN Communication Bus

Network, communication 

SAE- 
DTC 
DTC text  Corrective action 
U0100 Lost Communication With ECM/PCM "A"
U0101 Lost Communication with TCM
U0103 Lost Communication With Gear Shift Module
U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module

Network, software 

SAE- 
DTC 
DTC text  Corrective action 
U0302 Software Incompatibility with Transmission Control Module
  • Code Transmission Control Module (TCM) -J217-: Refer to Diagnostic tester VAS 5051; Guided Fault Finding; Vehicle system test or VAS 5052; Vehicle Self-Diagnosis
U0315 Software Incompatibility with Anti-Lock Brake System Control Module
  • Code ABS Control Module -J104-: Refer to Diagnostic tester VAS 5051; Guided Fault Finding; Vehicle system test or VAS 5052; Vehicle Self-Diagnosis

Network, data 

SAE- 
DTC 
DTC text  Corrective action 
U0402 Invalid Data Received From Transmission Control Module
U0404 Invalid Data Received From Gear Shift Control Module
U0415 Invalid Data Received From Anti-Lock Brake System Control Module
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.