Jetta GLS L4-1.8L Turbo (AWP) (2002)
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Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory,Checking and Erasing DTC Memory. Refer to
"Displaying and Reading Trouble Codes/With Manufacture Scan Tool/Check DTC Memory (Function 02)" See: Testing and Inspection
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Read readiness code. If DTC memory has been erased or engine control module was disconnected from permanent positive, readiness code must
be generated again: Refer to "Monitors, Trips and/or Drive Cycle/ Reading Readiness Code" See: Testing and Inspection
Engine code AWW, Refer to "Monitors, Trips and/or Drive Cycle/Generating Readiness Code" See: Testing and Inspection
Engine code AWP, Refer to "Monitors, Trips and/or Drive Cycle/Generating Readiness Code" See: Testing and Inspection
If display remains at approx. 143 °C:
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Press -> key.
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Press keys 0 and 6 for function "End output" and confirm entry with Q key.
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Switch ignition off.
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Check wiring using wiring diagram.
Checking wiring
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Connect VAG1598/31 test box to control module wiring harness. The engine control module remains disconnected.
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Pull connector -1- off Intake Air Temperature (IAT) sensor (G42) -2-
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Check wiring between test box and 2-pin connector -1- for open circuit using wiring diagram.
Contact 1+socket 85
Contact 2+socket 108
Wire resistance: max. 1.5 Ohm
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Additionally check both wires for short to battery positive.
If no fault in wire is detected: