Check Control Module Version

2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION Check Control Module Version
  1. Connect scan tool to DLC. See Figure .
  2. Initiate On Board Diagnostic (OBD). See INITIATING ON BOARD DIAGNOSTIC (OBD)Β  under RETRIEVING DIAGNOSTIC TROUBLE CODES.
  3. Switch on ignition.
  4. Press "1" for "Rapid data transfer" node.
  5. Switch on printer with "PRINT" button (warning lamp in button lights up).
  6. Press buttons "0" and "1."
  7. Confirm entry with the "Q" button. The control module identification of the central control module for comfort system (J393), convenience center control unit, will be shown in the VAG 1551 scan tool display:
    • Upper line - Part number of control module system designation (e.g. 03 Conv. cent. CU 0001). A number/letter combination (03 or 6Q, or others) indicate a correct programming of the control module.
    • Lower line - Code number dealer code number (automatically stored in the control module when interrogating the system).
  8. Press right arrow button. The control module identification of the driver's door control module will be shown on the VAG 1551 scan tool display.
  9. Press right arrow button. The control module identification of the passenger's door control module will be shown on the VAG 1551 scan tool display.
  10. Press right arrow button. The control module identification of the rear left door control module will be shown on the VAG 1551 scan tool display.
  11. Press right arrow button. The control module identification of the rear right control module will be shown on the VAG 1551 scan tool display.
  12. Press right arrow button.
    NOTE: If "control module does not answer!" appears in the display, the possible causes can be printed out with the "HELP" button.
RENDER: 1.0x

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When to See a Mechanic

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

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