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 MANUALSVOLKSWAGEN2001GTI (1J1) L4-1.8L TURBO (AWD)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCAMSHAFT POSITION SENSORTESTING AND INSPECTION
2001 Volkswagen GTI (1J1) L4-1.8L Turbo (AWD)
Camshaft Position Sensor: Testing and Inspection
2001 Volkswagen GTI (1J1) L4-1.8L Turbo (AWD)SECTION Testing and Inspection
Camshaft Position (CMP) Sensor 2, Checking
Special tools, workshop equipment, testers, measuring instruments and auxiliary items required
- Test box VAG 1598/31
- Hand multimeter VAG 1526 or multimeter VAG 1715
- Adapter set VAG 1594
- Wiring diagram
Test conditions
The battery voltage must be at least 11.5 V.
Test sequence
- Pull 3 pin connector -1- off Camshaft Position (CMP) sensor -2-.
- Connect multimeter to measure voltage using aux. cables from VAG 1594 to the outer contacts of the connector.
- Switch on ignition.
Specification: min. 4.5 V
- Switch off ignition.
- Connect test box VAG 1598/31 to control module wiring harness. The engine control module remains disconnected.
- Connect test box VAG 1598/31 to control module wiring harness. The engine control module remains disconnected.
- Check wiring for open circuit between test box and connector using wiring diagram.
Contact 1 + socket 98
Contact 2 + socket 86
Contact 3 + socket 108
Wire resistance: Max. 1.5 ohms
- Additionally check wires for short to one another.
If no wiring fault is detected and voltage was present between contacts 1+3:
- Replace Camshaft Position (CMP) sensor 2 (G163).
If no wiring fault is detected and no voltage was present between contacts 1+3:
- Replace engine electronics control module.
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.