Rabbit L5-2.5L (BGP) (2006)
Camshaft Position Sensor: Testing and Inspection
Camshaft Position (CMP) Sensors , Checking
Special tools, testers and auxiliary items required
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Multimeter
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wiring diagrams
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The manufacturers test box Adapter Cable (121-point) VAG1598/31 is available for purchase or rental. Refer to the Tool catalog.
NOTE: Use only gold-plated terminals when servicing terminals in harness connector of Camshaft Position (CMP) Sensor G40.
Test requirements
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Fuses for Engine Control Module (ECM) J623 OK.
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Battery voltage at least 12.5 volts.
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All electrical consumers such as, lights and rear window defroster, switched off.
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Vehicles with automatic transmission, shift selector lever into position "P" or "N".
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A/C switched off.
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Ground (GND) connections between engine/transmission/chassis OK.
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Ignition switched off.
Checking activation
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Remove engine cover - arrows -.
CAUTION: The use of nails, paper clips, or another unauthorized materials to back-probe electrical harness connectors is strictly
prohibited and may cause damage to the electrical harness connectors, terminal ends or damage to a component. Use only the
manufacturers test lead kit or an equivalent aftermarket test lead kit for back-probing all electrical harness connectors.
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Using the low current voltage tester, check for voltage between terminal 1 and terminal 2 with the electrical harness connector connected to
Camshaft Position (CM P) Sensor G40.
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Operate the starter briefly.
The LED must blink.
NOTE: Voltage testers do not go out completely during low current pick-up between activations by the ECM, but rather continue to glow a little and
then get significantly brighter during activation.
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Switch ignition off.
If the LED does not blink:
Checking voltage supply