Passat Syncro Wagon V6-2771cc 2.8L DOHC (AHA) (1998)
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Disconnect connector -1- from Intake Air Temperature (IAT) Sensor -G42- (-2-).
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Bridge terminals 1 + 2 of connector using the respective adapter cables while observing the indication on display.
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-, item 10.
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Erase DTC memory of Engine Control Module (ECM), 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 degrees 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.
-
Replace Intake Air Temperature (IAT) Sensor -G42-, item 10.
-
Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
-
Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes