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 VARIANT/TRIMSECTION 7 (1.9L - DIESEL FUEL INJECTION - ALH, 2V TDI (A4 PLATFORM))DIESEL DIRECT FUEL INJECTION (DFI) ENGINE CONTROL MODULECAN-BUS, CHECKINGTEST SEQUENCE
2002 Volkswagen Golf GLS, 2.0 K, Standard
Test sequence
2002 Volkswagen Golf GLS, 2.0 K, StandardSECTION Test sequence
WARNING: This page is about a different variant/trim than selected.
- Switch off ignition.
- Remove wiper arms and plenum chamber cover:
- Unlock the Diesel Direct Fuel Injection Engine Control Module connector and pull it off.
- Connect test box VAG 1598/31 to Diesel Direct Fuel Injection Engine Control Module -J248-. The control module wiring harness is not connected by this action.
- Check end resistor in engine control unit.
- Perform a resistance measurement between the test box sockets
Sockets 6 + 7:
Specification: 60 to 72 Ξ©
If the resistance measurement is outside the specified range:Β
- Replace Diesel Direct Fuel Injection Engine Control Module -J248-; see DIESEL DIRECT FUEL INJECTION (DFI) ENGINE CONTROL MODULEΒ .
If the resistance value is within the specified range:Β
- Repair the malfunction in the wiring using wiring diagram:
- Check DTC memory and, if necessary, repair any malfunctions and then erase; see DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING .
- Read-out the readiness code, see READING READINESS CODE . If the DTC memory has been erased or the Diesel Direct Fuel Injection Engine Control Module - J248- was disconnected from permanent battery positive (B+), the readiness code must be generated again; see READINESS CODE, SETTING .
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.