SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLKSWAGEN2002GOLF GLS, 2.0 K, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 85 (1.8L - ON BOARD DIAGNOSTIC (OBD), GENERIC SCAN TOOL - AWD, AWP, AWW)GENERIC SCAN TOOLGENERAL INFORMATION FOR ON BOARD DIAGNOSTIC (OBD)CHARACTERISTICS OF ON BOARD DIAGNOSTIC (OBD)
2002 Volkswagen Golf GLS, 2.0 K, Standard

Characteristics of On Board Diagnostic (OBD)

2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION Characteristics of On Board Diagnostic (OBD)
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2006 Volkswagen GTI, 2005 Volkswagen Jetta, 2005 Volkswagen GTI, 2004 Volkswagen Jetta, and 2004 Volkswagen GTI. However, it is still accessible from the selected car via links, so may be relevant.

The Engine Control Module (Motronic Engine Control Module (ECM) -J220-) is equipped with DTC memory.

If malfunctions occur at the exhaust relevant systems or components, they are stored in DTC memory with a description of the malfunction type.

The Engine Control Module (ECM) differentiates between different DTCs after evaluating the information, see DIAGNOSTIC TROUBLE CODE (DTC) TABLES: 

The stored malfunctions can be checked with a standard diagnostic tester, see DIAGNOSTIC MODE 3: CHECK DTC MEMORY .

When harness connectors are disconnected from the Engine Control Module (ECM) or the battery is disconnected, all adaptation values in the control module are erased. DTC memory content will remain intact however. If the engine is started after this, a rough, uneven idle can result. In this case, the readiness code must be generated again, see READINESS CODE, GENERATING .

The following work steps must be performed in the described sequence after the malfunction(s) have been repaired:

  1. Check DTC memory, see DIAGNOSTIC MODE 3: CHECK DTC MEMORY .
  2. Erase DTC memory, see DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
  3. For completion, generate readiness code, see READINESS CODE, GENERATING .
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.