Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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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)ON BOARD DIAGNOSTIC (OBD), TECHNICAL DATACONTROL MODULE IDENTIFICATION
2002 Volkswagen Golf GLS, 2.0 K, Standard
Control module identification
2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION Control module identification
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 control module version is displayed by selecting "Diagnostic mode 9: Vehicle information" under address word 33, see DIAGNOSTIC MODE 9: VEHICLE INFORMATION .
Engine Control Module (ECM) equipment
ENGINE CONTROL MODULE EQUIPMENT SPECIFICATION
| Engine identification | AWD | AWP | AWW | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| System identification | Motronic ME7.5 | Motronic ME7.5 | Motronic ME7.5 | ||||||||
| Terminals at Engine Control Module (ECM) | 121 | 121 | 121 | ||||||||
| Emissions limits according to | TLEV (1) | LEV(2) | LEV(2) | ||||||||
| On Board Diagnostic (OBD) | OBD II | OBD II | OBD II | ||||||||
| DTC memory | Permanent memory(3) | Permanent memory(3) | Permanent memory(3) | ||||||||
| Memory for adaptation values | Temporary memory(4) | Temporary memory(4) | Temporary memory(4) | ||||||||
| Oxygen sensor control | 2 sensors | 2 sensors | 2 sensors | ||||||||
| Knock sensor control | 2 knock sensors | 2 knock sensors | 2 knock sensors | ||||||||
| Intake manifold change-over | No | No | No | ||||||||
| Camshaft adjustment | No | Yes | Yes | ||||||||
| Boost pressure regulation | Yes | Yes | Yes | ||||||||
| Secondary Air Injection (AIR) system | Yes | Yes | Yes | ||||||||
| Electronic engine performance regulation | Yes | Yes | Yes | ||||||||
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Selectable diagnostic modes under address word 33 - OBD
NOTE:
The conditions required for selecting the desired diagnostic mode are listed in the SELECTABLE DIAGNOSTIC MODES UNDER ADDRESS WORD 33 - OBD table.
SELECTABLE DIAGNOSTIC MODES UNDER ADDRESS WORD 33 - OBD
| Diagnostic mode | Requirement: | ||||||
|---|---|---|---|---|---|---|---|
| Selectable diagnostic modes under address word 33 - OBD |
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| Mode 1: | Check measured values | See DIAGNOSTIC MODE 1: CHECK MEASURED VALUES | Yes | Yes | Yes | ||
| Mode 2: | Checking operating conditions | See DIAGNOSTIC MODE 2: CHECKING OPERATING CONDITIONS | Yes | Yes | Yes | ||
| Mode 3: | Check DTC Memory | See DIAGNOSTIC MODE 3: CHECK DTC MEMORY | Yes(1) | Yes | Yes | ||
| Mode 4: | Reset/erase diagnostic data | See DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA | Yes | Yes | Yes | ||
| Mode 5: | Check output of oxygen sensor signals | See DIAGNOSTIC MODE 5: CHECK OUTPUT OF OXYGEN SENSOR SIGNALS | Yes | Yes | Yes | ||
| Mode 6: | Check test results of components that are not continuously monitored | See DIAGNOSTIC MODE 6: CHECK TEST RESULTS OF COMPONENTS THAT ARE NOT CONTINUOUSLY MONITORED | No | Yes | Yes | ||
| Mode 7: | Check test results of components that are continuously monitored | See DIAGNOSTIC MODE 7: CHECK TEST RESULTS OF COMPONENTS THAT ARE CONTINUOUSLY MONITORED | Yes(1) | Yes | Yes | ||
| Mode 8: | Tank leak test | See DIAGNOSTIC MODE 8: TANK LEAK TEST | No | Yes | No | ||
| Mode 9: | Vehicle information | See DIAGNOSTIC MODE 9: VEHICLE INFORMATION | Yes | Yes | Yes | ||
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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.