Section 2 (On Board Diagnostic (OBD) - 5 SPD. Automatic Transmission (01V, Fwd))

• On Board Diagnostic (OBD II), function
  • Transmission controls
  • Malfunction recognition by the TCM
  • TCM backup functions
  • Mechanical backup with active control module
  • Mechanical backup with non-active control module
  • Malfunction Indicator Lamp (MIL), function
  • MIL functional check
  • Conditions for recognition of a driving cycle (Dcy)
  • On Board Diagnostic (OBD II), technical data
  • On Board Diagnostic (OBD II), functions
• Electrical and electronic components, locations
  • Notes
  • Removing and installing TCM -J217-
    • Removing
    • Installing
    • Disconnecting multi-pin connector from TCM -J217-
• On Board Diagnostic (OBD II), conducting program
  • VAG 1551, connecting and selecting function
    • Notes
    • Test requirements
  • OBD II functions
  • DTC table
    • Notes
    • CAN-Bus wire data exchange
  • Output Diagnostic Test Mode (DTM) (function 03), conducting
  • DTC memory, erasing (function 05)
    • Requirement
    • After successful check of DTC memory:
  • Control module, coding (function 07)
    • Notes
    • Requirements
  • Measuring value block, reading (function 08)
  • Measuring value block table
• Electrical testing
  • Notes
  • Test requirements
  • Testing
  • Overview of test steps (of 88-pin connector)
    • Notes
    • Multi-function switch -F125-connector, disconnecting, terminal locations
      • Disconnecting connector
      • Terminal locations on 8-pin connectors
  • Wiring harness between Transmission Control Module (TCM) and transmission, checking
    • Notes
    • Test requirements
    • Checking wiring connection to 16-pin connector on transmission
    • Checking wiring to 8-pin connector for multi-function switch
• Transmission shift elements
  • Shift element positions