On Board Diagnostic (OBD) - Suspension & Tire Pressure Monitoring

• On Board Diagnostic (OBD)
  • Pneumatic suspension system for four-wheel systems On Board Diagnostic (OBD), basic information
  • VAG1551 scan tool, connecting and selecting address word
  • Erase DTC Memory (function 05) and End Output (function 06)
  • Select functions
  • Technical information material needed
• Four-wheel self leveling suspension system On Board Diagnostic (OBD)
  • General notes
  • Indicator lamp for level control system -K134-
  • On Board Diagnostic (OBD) system, function
  • On Board Diagnostic (OBD) functions
  • Check Control Module Versions (function 01)
  • Code Control Module (function 07)
    • Notes
    • Test sequence
  • Output Diagnostic Test Mode (function 03)
    • Notes
    • Perform Function 03 - "Output Diagnostic Test Mode"
  • Read Measuring Value Block (function 08)
    • Notes
    • Perform Function "08 - Read Measuring Value Block"
  • Measuring value block overview
    • Measured value block 001
      • Notes
      • Display value table
    • Measured value block 002
      • Notes
      • Display value table
    • Measured value block 003
      • Notes
      • Display value table
    • Measured value block 004
      • Notes
      • Display value table
    • Measured value block 005
      • Notes
      • Display value table
    • Measured value block 006
      • Notes
      • Display value table
    • Measured value block 007
      • Notes
      • Display value table
    • Measured value block 008
      • Notes
      • Display value table
  • Basic setting (function 04)
    • Notes
    • Test preconditions:
    • Working procedure
  • Adaptation (function 10), activating and deactivating self leveling suspension system
    • Notes
    • Deactivated self leveling suspension system
    • Activating self leveling suspension system
• DTC table, Four-wheel self leveling suspension system
  • Check DTC Memory (function 02)
    • Notes
    • Perform Function "02 - Check DTC Memory"
  • DTC table
• Four-wheel pneumatic suspension system, function
  • Four-wheel self leveling suspension system, function
  • Level control system control module -J197-
  • Level control system sensors -G76-, -G77-, -G78-, -G289-
  • Suspension strut valves -N148-, -N149-, -N150-, -N151-
  • Level Control Accumulator Valve -N311-
  • Solenoid for level control system - N111-
  • Motor for compressor-level control system -V66-
  • Relay for compressor level control system -J403-
  • Level control pump temperature sensor -G290-
  • Level control system control head - E281-
• Four-wheel pneumatic system, electrical check
  • Notes
  • Test preconditions
  • The following measuring and other equipment is needed:
  • Contact assignment of multi-pin connector I - 18-pin - on wiring harness/self leveling suspension system -J197-
  • Contact assignment of multi-pin connector II - 50-pin - to wiring harness/self leveling suspension system -J197-
  • Contact assignment 18-pin Connector
  • Contact assignment 50-pin Connector
  • Four-Wheel Pneumatic System Electrical Check
• Height dimension, determining
• CAN bus
  • CAN bus, function
  • "Two-wire bus system", testing
    • If requested in the DTC table to check the bus:
    • Is their a functional malfunction?
    • When searching for malfunctions in the bus lines, differentiate between two cases:
    • Communication occurs between two control modules via a "Two-wire bus system"
  • Malfunction messages in the CAN bus system
    • Notes
    • Example 1:
    • Example 2:
    • Example 3:
• Tire pressure monitoring system On Board Diagnostic (OBD)
  • System description
  • Description of components
    • Tire Pressure Monitoring Control Module -J502-
    • Tire pressure sensors -G222- to -G225-
    • Tire pressure monitoring system antennas -R59- to -R62-
  • Safety precautions
  • Check Control Module Versions (function 01)
  • Code Control Module (function 07)
    • Notes
    • Perform encoding
    • Encoding: 20329
    • Code table
  • Table of control module versions with coding or instrument cluster
  • Check DTC Memory (function 02)
  • Read Measuring Value Block (function 08)
    • Perform "Read Measuring Value Block"
    • Measured value block 001
    • Measured value block 002
    • Measured value block 003
    • Measured value block 004
    • Measured value block 005
    • Measured value block 006
    • Measured value block 008
    • Measured value block 009
    • Measured value block 010
    • Measured value block 011
    • Measured value block 012
    • Measured value block 013
    • Measured value block 014
    • Measured value block 015
    • Measured value block 016
    • Measured value block 017
    • Measured value block 018
    • Measured value block 021
  • Adaptation (function 10)
    • Notes
    • Perform Function "10 - Adaptation"
• DTC table for tire pressure monitoring system
• Tire pressure monitoring system, setting up