New Beetle Turbo S L4-1.8L Turbo (AWP) (2002)
If indication remains at approx. 143 degrees C:
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End diagnosis and switch ignition off.
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Check wires according to wiring diagram.
Checking wiring
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Connect test box to control module wiring harness, connect test box for wiring test.
Vehicles with engine code APH
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 1 + socket 108
Terminal 3 + socket 93
Wire resistance: max. 1.5 ohms
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Use wiring diagram to check wire between test box and 3-pin connector terminal 3 for short circuit to wire of terminal 4 and to vehicle Ground
(GND).
Terminal 3 + socket 108
Terminal 3 + vehicle Ground (GND)
Specified value: Infinite Ohms
Vehicles with engine code AWP, AWV
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Check wires between test box and 4-pin connector for open circuit according to wiring diagram.
Terminal 3 + socket 93
Terminal 4 + socket 108
Wire resistance: max. 1.5 ohms
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Use wiring diagram to check wire between test box and 4-pin connector terminal 3 for short circuit to wire of terminal 4 and to vehicle Ground
(GND).
Terminal 3 + socket 108
Terminal 3 + vehicle Ground (GND)
Specified value: Infinite Ohms
Continuation for all vehicles
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinite Ohms
If no malfunctions are found in wire:
Vehicles with engine code APH