TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
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Bridge terminals 3 + 4 of connector using the respective adapter cables and observe the indication on display.
Continuation for all vehicles
If indication jumps to approx. 143 degree C:
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End diagnosis and switch ignition off.
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Replace Engine Coolant Temperature (ECT) Sensor -G62- with Engine Coolant Temperature (ECT) Sensor -G2-.
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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/Scan Tool Testing/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/Audi Drive Cycle/Readiness Code/With Generic Scan Tool/Readiness Code, Generating
If indication remains at approx. -40 degree 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 degree C:
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Disconnect 4-pin connector -1- from Engine Coolant Temperature (ECT) Sensor -G62- (-2-).
If indication jumps to approx. -40 degree C:
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End diagnosis and switch ignition off.
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Replace Engine Coolant Temperature (ECT) Sensor -G62- with Engine Coolant Temperature (ECT) Sensor -G2-.
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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/Scan Tool Testing/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/Audi Drive Cycle/Readiness Code/With Generic Scan Tool/Readiness Code, Generating
If indication remains at approx. 143 degree 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. See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box,
Connecting For Wiring Test
Coolant temperature sensor with square connector: