Jetta GLS L4-1.8L Turbo (AWD) (2001)
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Pull connector -1- off Intake Air Temperature (IAT) sensor (G42) -2-.
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Bridge connector contacts using auxiliary cables from VAG 1594 and observe display.
If display jumps to approx. 143 °C:
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Press -> key.
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Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.
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Switch off ignition.
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Replace Intake Air Temperature (IAT) sensor (G42).
If display remains at approx. -48 °C:
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Press -> key.
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Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.
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Switch off ignition.
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Check wiring using wiring diagram
Continuation of check when display reads approx. 143 °C
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Pull connector -1- off Intake Air Temperature (IAT) sensor (G42) -2-.
If display jumps to approx. -48 °C:
-
Press -> key.
-
Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.
-
Switch off ignition.
-
Replace Intake Air Temperature (IAT) sensor (G42).
If display remains at approx. 143 °C:
-
Press -> key.
-
Press keys 0 and 6 for the function "End output" and confirm entry with the Q key.
-
Switch off ignition.
-
Check wiring using wiring diagram