New Beetle GLS L4-1.9L DSL Turbo (ALH) (2002)
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Connect VAG 1598/22 (or 1598/31) Test Box to ECM wiring harness.
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Connect diode test lamp between sockets:
Up to MY 1999
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1 (Ground) and 51 (road speed signal).
From MY 2000
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4 (Ground) and 20 (road speed signal).
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Switch ON ignition and turn front left wheel by hand.
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Voltage tester diode must blink (approx. four times per wheel rotation)
NOTE: If necessary, hold the front right wheel to prevent it from turning.
If LED does not blink
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Check wiring for open/short circuit between following ECM harness connector terminals and instrument cluster:
Up to MY 1999
Terminal 51
From MY 2000
Terminal 20
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Display the Readiness code. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Displaying Readiness Code" See: Testing and
Inspection
If DTC memory was erased
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Set the Readiness code. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Setting Readiness Code" See: Testing and Inspection