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HOMESERVICE MANUALSVOLKSWAGEN2002GOLF GLS, 2.0 K, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 98 (1.9L - FUEL INJECTION GLOW PLUG, ENGINE CODE: ALH (A4 PLATFORM))23 DIESEL FUEL INJECTIONDIESEL DIRECT FUEL INJECTION (DFI) ENGINE CONTROL MODULE (ECM) -J248ENGINE CONTROL MODULE (ECM) J248 CODINGWORK SEQUENCE
2002 Volkswagen Golf GLS, 2.0 K, Standard

Work sequence

2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION Work sequence
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2001 Volkswagen Jetta, 2001 Volkswagen Golf, 2000 Volkswagen Jetta, 2000 Volkswagen Golf, and 1999 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
  • Connect Scan Tool V.A.G 1551/1552.
  • Start engine and let idle
  • Press - 0  - and - 1  - to select Address word 01:

"Engine electronics"

Indicated on display:

Rapid data transfer HELP
Select function XX
  • Press buttons - 0  - and - 7  - for Code Engine Control Module (ECM) J248 and confirm with - Q  - button.

Indicated on display:

Coding Engine Control Module (ECM)
Enter code number XXXXX (0
  • Enter appropriate code number and confirm with - Q  - button.
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.