Brake System On-Board Diagnostic (OBD) (A3 Platform)

• Model Application
  • Cabrio
  • Early Production 1999 Golf, GTI, & Jetta
• Teves 04 Anti-lock Brakes (ABS) and Anti-lock Brakes with Electronic Differential Lock (ABS/EDL), On Board Diagnostic (OBD)
  • ABS and ABS/EDL, Teves 04, distinguishing features
    • ABS - Teves 04
    • ABS/EDL - Teves 04
  • Function
    • Teves 04
    • VAG 1551 scan tool
    • ABS only
    • Abs/EDL
  • On Board Diagnostic (OBD), technical data
    • Teves 04
    • ABS control module
    • Diagnostic Trouble Code (DTC) memory
  • Safety precautions and fundamental points regarding troubleshooting
    • Notes
    • Necessary technical information
  • Troubleshooting with VAG 1551 scan tool
    • Teves 04
• Teves 04 ABS and ABS/EDL electrical/electronic component locations
• Teves 04 ABS and ABS/EDL On Board Diagnostic (OBD)
  • Test requirements
    • Notes
    • ABS control module -J104- Ground (GND) connections
  • VAG 1551 scan tool, connecting and selecting function
    • Notes
    • Vehicles up to 07.93
    • Vehicles from 08.93 & up
  • List of selectable scan tool functions
  • Diagnostic Trouble Code (DTC) memory, checking
  • Diagnostic Trouble Code (DTC) table
  • Diagnostic Trouble Code (DTC) memory, erasing and ending output
    • Requirements
    • Erasing DTC memory
    • Ending output
• Teves 04 ABS and ABS/EDL electrical test
  • Notes
  • Test requirements
    • Notes
    • Test equipment and aids required:
  • Electrical test table
  • ABS control module, removing and installing
    • Notes
    • Removing:
    • Installing:
  • Multi-pin connectors, terminal assignment
    • Notes
    • ABS Control Module Harness Connector T55 Chart
    • ABS hydraulic unit -N55- harness connector
    • ABS hydraulic pump -V64- harness connector
    • Data link connector (DLC) for voltage supply and On Board Diagnostic (OBD) with the VAG 1551 scan tool (from 08.93)
  • Brake light switch, adjusting
• Teves 20 GI Anti-lock Brakes (ABS) and Anti-lock Brakes with Electronic Differential Lock (ABS/EDL), On Board Diagnostic (OBD)
  • ABS and ABS/EDL, Teves 20 GI, distinguishing features
    • ABS - Teves 20 GI
    • Distinguishing features:
    • ABS/EDL - Teves 20 GI
  • Function
    • Notes
    • VAG 1551 scan tool
  • On Board Diagnostic (OBD), technical data
    • Teves 20 GI ABS control module -J104-
    • Diagnostic Trouble Code (DTC) memory
  • Safety precautions and fundamental points regarding troubleshooting
    • Notes
    • Necessary technical information
  • Troubleshooting with VAG 1551 scan tool
• Teves 20 GI ABS and ABS/EDL electrical/electronic component locations
• Teves 20 GI ABS and ABS/EDL warning lights, malfunctions displayed
  • ABS warning light -K47- (-2-) does not go out after completion of self-test sequence (ignition switched on)
  • ABS warning light goes out but warning light for brake system -K118- (-1-) remains on
  • Vehicle with ABS/EDL has no EDL function
    • Complaint: "Vehicle does not have EDL function"
• Teves 20 GI ABS and ABS/EDL On Board Diagnostic (OBD)
  • Test requirements
  • List of selectable functions
  • VAG 1551 scan tool, connecting and selecting function
  • Diagnostic Trouble Code (DTC) memory, checking
  • Diagnostic Trouble Code (DTC) table
  • Diagnostic Trouble Code (DTC) memory, erasing and ending output
    • Requirements
    • Erasing DTC memory
    • Ending output
  • Code Control Module (VAG 1551 function 07)
    • Notes
    • Test sequence
    • Coding table
  • Read Measuring Value Block (VAG 1551 scan tool function 08)
    • Notes
    • Display group 001-ABS wheel speed sensor assignment
    • Display group 002-ABS wheel speed sensor signals
    • Example:
    • Display group 003-brake light switch ABS and ABS/EDL function
  • Output Diagnostic Test Mode (DTM) (VAG 1551 scan tool function 03)
  • ABS/EDL hydraulic unit, bleeding using Basic Setting (VAG 1551 function 04)
• Teves 20 GI ABS and ABS/EDL electrical test
  • Notes
  • Test requirements
    • Notes
    • Test equipment and aids required:
  • Electrical test table
    • Notes on electrical test table
  • ABS control module, removing and installing
    • Notes
    • Removing:
    • Installing:
    • Tightening torques
  • Multi-pin connector terminal assignments
  • Brake light switch, adjusting