New Beetle GLS L4-1.8L Turbo (AWV) (2001)
If indication jumps to approx. -40 degrees C:
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End diagnosis and switch ignition off.
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Replace Intake Air Temperature (IAT) Sensor -G42-:
Vehicles with engine code AWD, item 28.
Vehicles with engine code AWP, AWV, item 26.
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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/Read Measuring Value Blocks (Function 08)/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
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.
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Disconnect connector -1- from Intake Air Temperature (IAT) Sensor -G42- -2-.
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Check wires between test box and 2-pin connector -1- for open circuit according to wiring diagram.
Terminal 1 + socket 85
Terminal 2 + socket 108
Wire resistance: max. 1.5 ohms
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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:
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Measure resistance at Intake Air Temperature (IAT) Sensor -G42-.