Jetta GLS Wagon L4-1.8L Turbo (AWP) (2002)
Camshaft Adjuster/Chain Tensioner: Testing and Inspection
With Generic Scan Tool
Valve For Camshaft Adjustment (vehicles With Engine Code AWP, AWW), Checking
Function
The camshaft adjustment is load- and RPM dependent. The electrical valve for camshaft adjustment switches oil pressure onto camshaft adjuster
(mechanical adjustment mechanism), which adjusts the camshaft.
Recommended special tools and equipment
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V.A.G1526 multimeter or V.A.G1715 multimeter
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V.A.G1594 connector test kit
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Wiring diagram
Test requirements
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The respective fuses of the Valve -1- for camshaft adjustment -N205- must be OK.
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Fuel Pump (FP) Relay -J17- must be OK, check.
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Battery voltage must be at least 11.5 volts.
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All electrical consumers like, lights and rear window heating must be switched off.
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Parking brake must be engaged or else daylight driving lights will be switched on.
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If vehicle is equipped with an A/C system, it must be switched off.
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Ground (GND) connections between engine and chassis must be OK.
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Ignition switched off.
Test sequence
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Measure resistance between terminals of the respective valve for camshaft adjustment.
Specified value: 10 to 18 Ohms
If specified value is not obtained:
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Replace valve for camshaft adjustment.
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain Management/Computers
and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic Mode 4: Reset/Erase
Diagnostic Data
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Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes