Beetle L4-1781cc 1.8L Turbo (APH) (1999)
If indication jumps to approx. 143 degrees C:
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End diagnosis and switch ignition off.
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Replace Intake Air Temperature (IAT) Sensor -G42-:
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Vehicles with engine code AWD item 28.
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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. -40 degrees C:
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End diagnosis and switch ignition off.
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Check wires according to wiring diagram.
Continuation of test if indication is approx. 143 degees C:
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Disconnect connector -1- from Intake Air Temperature (IAT) Sensor -G42- -2-.
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.
-
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:
-
End diagnosis and switch ignition off.
-
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-.